MFC消息映射中：AFX_MSGMAP* (PASCAL* pfnGetBaseMap)()是什么类型？

cy010510630 2010-07-01 03:20:39
struct AFX_MSGMAP
{
#ifdef _AFXDLL
const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)();
#else
const AFX_MSGMAP* pBaseMap;
#endif
const AFX_MSGMAP_ENTRY* lpEntries;
};

请问，红色部分定义的到底是个什么东西？
看来像个函数指针。。。。。
请教了
...全文
197 6 打赏 收藏 转发到动态 举报
AI 作业
写回复
用AI写文章
6 条回复
切换为时间正序
请发表友善的回复…
发表回复
cy010510630 2010-07-15
  • 打赏
  • 举报
 回复
谢谢解答，我再理解理解
little_spotted_deer 2010-07-15
  • 打赏
  • 举报
 回复
用小括号括起来表示强制转换，所以不能像你那样写
cy010510630 2010-07-02
  • 打赏
  • 举报
 回复
是不是这样就翻译为：调用函数，而不是获得函数指针了？
谢谢各位解答。
cy010510630 2010-07-02
  • 打赏
  • 举报
 回复
还有一个不明白的地方，如果强制转换函数指针的话，第一次我也许会写成这样：
const （AFX_MSGMAP*） （PASCAL* pfnGetBaseMap()）;

所以我想知道，为什么红色括号不放在紧跟函数名之后？
little_spotted_deer 2010-07-01
  • 打赏
  • 举报
 回复
[Quote=引用楼主 cy010510630 的回复:]
struct AFX_MSGMAP
{
#ifdef _AFXDLL
const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)();
#else
const AFX_MSGMAP* pBaseMap;
#endif
const AFX_MSGMAP_ENTRY* lpEntries;
};

请问，红色部分定义的到底是个什么东西？
看来像个函数指针。……
[/Quote]
PASCAL* pfnGetBaseMap表示获得基类消息映射函数的地址的PASCAL类型的指针
AFX_MSGMAP*表示再将刚才的指针转换成消息映射类型的指针
const表示将刚才的指针再添加一个常量修饰符
wygss_18 2010-07-01
  • 打赏
  • 举报
 回复
就是函数指针，指向DECLARE_MESSAGE_MAP宏的GetMessageMap()函数

BEGIN_MESSAGE_MAP宏展开时GetMessageMap()内容为
const AFX_MSGMAP* theClass::GetMessageMap() const \
{ return &theClass::messageMap; } \

编译后在exe映像的rdata节形成如下结构
.rdata:005D7020 CYourApp__messageMap dd offset CWinApp__messageMap
.rdata:005D7024 dd offset CYourApp___messageEntries
.rdata:005D7028 CYourApp___messageEntries dd WM_COMMAND
.rdata:005D702C dd 0
.rdata:005D7030 dd ID_APP_ABOUT
.rdata:005D7034 dd ID_APP_ABOUT
.rdata:005D7038 dd AfxSig_vv
.rdata:005D703C dd offset CYourApp__OnAppAbout
stdafx.h代码
stdafx.h的代码// This is a part of the Microsoft Foundation Classes C++ library. // Copyright (C) 1992-1998 Microsoft Corporation // All rights reserved. // // This source code is only intended as a supplement to the // Microsoft Foundation Classes Reference and related // electronic documentation provided with the library. // See these sources for detailed information regarding the // Microsoft Foundation Classes product. #ifndef __AFXWIN_H__ #ifndef RC_INVOKED #define __AFXWIN_H__ ///////////////////////////////////////////////////////////////////////////// // Make sure 'afx.h' is included first #ifndef __AFX_H__ #include #endif // Note: WINDOWS.H already included from AFXV_W32.H #ifndef _INC_SHELLAPI #include #endif #ifndef __AFXRES_H__ #include // standard resource IDs #endif #ifndef __AFXCOLL_H__ #include // standard collections #endif #ifdef _AFX_MINREBUILD #pragma component(minrebuild, off) #endif #ifndef _AFX_FULLTYPEINFO #pragma component(mintypeinfo, on) #endif #ifndef _AFX_NOFORCE_LIBS #pragma comment(lib, "uuid.lib") #endif #ifdef _INC_WINDOWSX // The following names from WINDOWSX.H collide with names in this header #undef SubclassWindow #undef CopyRgn #endif #ifdef _AFX_PACKING #pragma pack(push, _AFX_PACKING) #endif ///////////////////////////////////////////////////////////////////////////// // Classes declared in this file class CSize; class CPoint; class CRect; //CObject //CException //CSimpleException class CResourceException;// Win resource failure exception class CUserException; // Message Box alert and stop operation class CGdiObject; // CDC drawing tool class CPen; // a pen / HPEN wrapper class CBrush; // a brush / HBRUSH wrapper class CFont; // a font / HFONT wrapper class CBitmap; // a bitmap / HBITMAP wrapper class CPalette; // a palette / HPALLETE wrapper class CRgn; // a region / HRGN wrapper class CDC; // a Display Context / HDC wrapper class CClientDC; // CDC for client of window class CWindowDC; // CDC for entire window class CPaintDC; // embeddable BeginPaint struct helper class CMenu; // a menu / HMENU wrapper class CCmdTarget; // a target for user commands class CWnd; // a window / HWND wrapper class CDialog; // a dialog // standard windows controls class CStatic; // Static control class CButton; // Button control class CListBox; // ListBox control class CCheckListBox;// special listbox with checks class CComboBox; // ComboBox control class CEdit; // Edit control class CScrollBar; // ScrollBar control // frame windows class CFrameWnd; // standard SDI frame class CMDIFrameWnd; // standard MDI frame class CMDIChildWnd; // standard MDI child class CMiniFrameWnd;// half-height caption frame wnd // views on a document class CView; // a view on a document class CScrollView; // a scrolling view class CWinThread; // thread base class class CWinApp; // application base class class CDocTemplate; // template for document creation class CSingleDocTemplate;// SDI support class CMultiDocTemplate; // MDI support class CDocument; // main document abstraction // Helper classes class CCmdUI; // Menu/button enabling class CDataExchange; // Data exchange and validation context class CCommandLineInfo; // CommandLine parsing helper class CDocManager; // CDocTemplate manager object ///////////////////////////////////////////////////////////////////////////// // Type modifier for message handlers #ifndef afx_msg #define afx_msg // intentional placeholder #endif #undef AFX_DATA #define AFX_DATA AFX_CORE_DATA ///////////////////////////////////////////////////////////////////////////// // CSize - An extent, similar to Windows SIZE structure. class CSize : public tagSIZE { public: // Constructors // construct an uninitialized size CSize(); // create from two integers CSize(int initCX, int initCY); // create from another size CSize(SIZE initSize); // create from a point CSize(POINT initPt); // create from a DWORD: cx = LOWORD(dw) cy = HIWORD(dw) CSize(DWORD dwSize); // Operations BOOL operator==(SIZE size) const; BOOL operator!=(SIZE size) const; void operator+=(SIZE size); void operator-=(SIZE size); // Operators returning CSize values CSize operator+(SIZE size) const; CSize operator-(SIZE size) const; CSize operator-() const; // Operators returning CPoint values CPoint operator+(POINT point) const; CPoint operator-(POINT point) const; // Operators returning CRect values CRect operator+(const RECT* lpRect) const; CRect operator-(const RECT* lpRect) const; }; ///////////////////////////////////////////////////////////////////////////// // CPoint - A 2-D point, similar to Windows POINT structure. class CPoint : public tagPOINT { public: // Constructors // create an uninitialized point CPoint(); // create from two integers CPoint(int initX, int initY); // create from another point CPoint(POINT initPt); // create from a size CPoint(SIZE initSize); // create from a dword: x = LOWORD(dw) y = HIWORD(dw) CPoint(DWORD dwPoint); // Operations // translate the point void Offset(int xOffset, int yOffset); void Offset(POINT point); void Offset(SIZE size); BOOL operator==(POINT point) const; BOOL operator!=(POINT point) const; void operator+=(SIZE size); void operator-=(SIZE size); void operator+=(POINT point); void operator-=(POINT point); // Operators returning CPoint values CPoint operator+(SIZE size) const; CPoint operator-(SIZE size) const; CPoint operator-() const; CPoint operator+(POINT point) const; // Operators returning CSize values CSize operator-(POINT point) const; // Operators returning CRect values CRect operator+(const RECT* lpRect) const; CRect operator-(const RECT* lpRect) const; }; ///////////////////////////////////////////////////////////////////////////// // CRect - A 2-D rectangle, similar to Windows RECT structure. typedef const RECT* LPCRECT; // pointer to read/only RECT class CRect : public tagRECT { public: // Constructors // uninitialized rectangle CRect(); // from left, top, right, and bottom CRect(int l, int t, int r, int b); // copy constructor CRect(const RECT& srcRect); // from a pointer to another rect CRect(LPCRECT lpSrcRect); // from a point and size CRect(POINT point, SIZE size); // from two points CRect(POINT topLeft, POINT bottomRight); // Attributes (in addition to RECT members) // retrieves the width int Width() const; // returns the height int Height() const; // returns the size CSize Size() const; // reference to the top-left point CPoint& TopLeft(); // reference to the bottom-right point CPoint& BottomRight(); // const reference to the top-left point const CPoint& TopLeft() const; // const reference to the bottom-right point const CPoint& BottomRight() const; // the geometric center point of the rectangle CPoint CenterPoint() const; // swap the left and right void SwapLeftRight(); static void SwapLeftRight(LPRECT lpRect); // convert between CRect and LPRECT/LPCRECT (no need for &) operator LPRECT(); operator LPCRECT() const; // returns TRUE if rectangle has no area BOOL IsRectEmpty() const; // returns TRUE if rectangle is at (0,0) and has no area BOOL IsRectNull() const; // returns TRUE if point is within rectangle BOOL PtInRect(POINT point) const; // Operations // set rectangle from left, top, right, and bottom void SetRect(int x1, int y1, int x2, int y2); void SetRect(POINT topLeft, POINT bottomRight); // empty the rectangle void SetRectEmpty(); // copy from another rectangle void CopyRect(LPCRECT lpSrcRect); // TRUE if exactly the same as another rectangle BOOL EqualRect(LPCRECT lpRect) const; // inflate rectangle's width and height without // moving its top or left void InflateRect(int x, int y); void InflateRect(SIZE size); void InflateRect(LPCRECT lpRect); void InflateRect(int l, int t, int r, int b); // deflate the rectangle's width and height without // moving its top or left void DeflateRect(int x, int y); void DeflateRect(SIZE size); void DeflateRect(LPCRECT lpRect); void DeflateRect(int l, int t, int r, int b); // translate the rectangle by moving its top and left void OffsetRect(int x, int y); void OffsetRect(SIZE size); void OffsetRect(POINT point); void NormalizeRect(); // set this rectangle to intersection of two others BOOL IntersectRect(LPCRECT lpRect1, LPCRECT lpRect2); // set this rectangle to bounding union of two others BOOL UnionRect(LPCRECT lpRect1, LPCRECT lpRect2); // set this rectangle to minimum of two others BOOL SubtractRect(LPCRECT lpRectSrc1, LPCRECT lpRectSrc2); // Additional Operations void operator=(const RECT& srcRect); BOOL operator==(const RECT& rect) const; BOOL operator!=(const RECT& rect) const; void operator+=(POINT point); void operator+=(SIZE size); void operator+=(LPCRECT lpRect); void operator-=(POINT point); void operator-=(SIZE size); void operator-=(LPCRECT lpRect); void operator&=(const RECT& rect); void operator|=(const RECT& rect); // Operators returning CRect values CRect operator+(POINT point) const; CRect operator-(POINT point) const; CRect operator+(LPCRECT lpRect) const; CRect operator+(SIZE size) const; CRect operator-(SIZE size) const; CRect operator-(LPCRECT lpRect) const; CRect operator&(const RECT& rect2) const; CRect operator|(const RECT& rect2) const; CRect MulDiv(int nMultiplier, int nDivisor) const; }; #ifdef _DEBUG // Diagnostic Output CDumpContext& AFXAPI operator<<(CDumpContext& dc, SIZE size); CDumpContext& AFXAPI operator<<(CDumpContext& dc, POINT point); CDumpContext& AFXAPI operator<<(CDumpContext& dc, const RECT& rect); #endif //_DEBUG // Serialization CArchive& AFXAPI operator<<(CArchive& ar, SIZE size); CArchive& AFXAPI operator<<(CArchive& ar, POINT point); CArchive& AFXAPI operator<>(CArchive& ar, SIZE& size); CArchive& AFXAPI operator>>(CArchive& ar, POINT& point); CArchive& AFXAPI operator>>(CArchive& ar, RECT& rect); ///////////////////////////////////////////////////////////////////////////// // Standard exceptions class CResourceException : public CSimpleException // resource failure { DECLARE_DYNAMIC(CResourceException) public: CResourceException(); // Implementation public: CResourceException(BOOL bAutoDelete); CResourceException(BOOL bAutoDelete, UINT nResourceID); virtual ~CResourceException(); }; class CUserException : public CSimpleException // general user visible alert { DECLARE_DYNAMIC(CUserException) public: CUserException(); // Implementation public: CUserException(BOOL bAutoDelete); CUserException(BOOL bAutoDelete, UINT nResourceID); virtual ~CUserException(); }; void AFXAPI AfxThrowResourceException(); void AFXAPI AfxThrowUserException(); ///////////////////////////////////////////////////////////////////////////// // CGdiObject abstract class for CDC SelectObject class CGdiObject : public CObject { DECLARE_DYNCREATE(CGdiObject) public: // Attributes HGDIOBJ m_hObject; // must be first data member operator HGDIOBJ() const; HGDIOBJ GetSafeHandle() const; static CGdiObject* PASCAL FromHandle(HGDIOBJ hObject); static void PASCAL DeleteTempMap(); BOOL Attach(HGDIOBJ hObject); HGDIOBJ Detach(); // Constructors CGdiObject(); // must Create a derived class object BOOL DeleteObject(); // Operations int GetObject(int nCount, LPVOID lpObject) const; UINT GetObjectType() const; BOOL CreateStockObject(int nIndex); BOOL UnrealizeObject(); BOOL operator==(const CGdiObject& obj) const; BOOL operator!=(const CGdiObject& obj) const; // Implementation public: virtual ~CGdiObject(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; virtual void AssertValid() const; #endif }; ///////////////////////////////////////////////////////////////////////////// // CGdiObject subclasses (drawing tools) class CPen : public CGdiObject { DECLARE_DYNAMIC(CPen) public: static CPen* PASCAL FromHandle(HPEN hPen); // Constructors CPen(); CPen(int nPenStyle, int nWidth, COLORREF crColor); CPen(int nPenStyle, int nWidth, const LOGBRUSH* pLogBrush, int nStyleCount = 0, const DWORD* lpStyle = NULL); BOOL CreatePen(int nPenStyle, int nWidth, COLORREF crColor); BOOL CreatePen(int nPenStyle, int nWidth, const LOGBRUSH* pLogBrush, int nStyleCount = 0, const DWORD* lpStyle = NULL); BOOL CreatePenIndirect(LPLOGPEN lpLogPen); // Attributes operator HPEN() const; int GetLogPen(LOGPEN* pLogPen); int GetExtLogPen(EXTLOGPEN* pLogPen); // Implementation public: virtual ~CPen(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; #endif }; class CBrush : public CGdiObject { DECLARE_DYNAMIC(CBrush) public: static CBrush* PASCAL FromHandle(HBRUSH hBrush); // Constructors CBrush(); CBrush(COLORREF crColor); // CreateSolidBrush CBrush(int nIndex, COLORREF crColor); // CreateHatchBrush CBrush(CBitmap* pBitmap); // CreatePatternBrush BOOL CreateSolidBrush(COLORREF crColor); BOOL CreateHatchBrush(int nIndex, COLORREF crColor); BOOL CreateBrushIndirect(const LOGBRUSH* lpLogBrush); BOOL CreatePatternBrush(CBitmap* pBitmap); BOOL CreateDIBPatternBrush(HGLOBAL hPackedDIB, UINT nUsage); BOOL CreateDIBPatternBrush(const void* lpPackedDIB, UINT nUsage); BOOL CreateSysColorBrush(int nIndex); // Attributes operator HBRUSH() const; int GetLogBrush(LOGBRUSH* pLogBrush); // Implementation public: virtual ~CBrush(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; #endif }; class CFont : public CGdiObject { DECLARE_DYNAMIC(CFont) public: static CFont* PASCAL FromHandle(HFONT hFont); // Constructors CFont(); BOOL CreateFontIndirect(const LOGFONT* lpLogFont); BOOL CreateFont(int nHeight, int nWidth, int nEscapement, int nOrientation, int nWeight, BYTE bItalic, BYTE bUnderline, BYTE cStrikeOut, BYTE nCharSet, BYTE nOutPrecision, BYTE nClipPrecision, BYTE nQuality, BYTE nPitchAndFamily, LPCTSTR lpszFacename); BOOL CreatePointFont(int nPointSize, LPCTSTR lpszFaceName, CDC* pDC = NULL); BOOL CreatePointFontIndirect(const LOGFONT* lpLogFont, CDC* pDC = NULL); // Attributes operator HFONT() const; int GetLogFont(LOGFONT* pLogFont); // Implementation public: virtual ~CFont(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; #endif }; class CBitmap : public CGdiObject { DECLARE_DYNAMIC(CBitmap) public: static CBitmap* PASCAL FromHandle(HBITMAP hBitmap); // Constructors CBitmap(); BOOL LoadBitmap(LPCTSTR lpszResourceName); BOOL LoadBitmap(UINT nIDResource); BOOL LoadOEMBitmap(UINT nIDBitmap); // for OBM_/OCR_/OIC_ BOOL LoadMappedBitmap(UINT nIDBitmap, UINT nFlags = 0, LPCOLORMAP lpColorMap = NULL, int nMapSize = 0); BOOL CreateBitmap(int nWidth, int nHeight, UINT nPlanes, UINT nBitcount, const void* lpBits); BOOL CreateBitmapIndirect(LPBITMAP lpBitmap); BOOL CreateCompatibleBitmap(CDC* pDC, int nWidth, int nHeight); BOOL CreateDiscardableBitmap(CDC* pDC, int nWidth, int nHeight); // Attributes operator HBITMAP() const; int GetBitmap(BITMAP* pBitMap); // Operations DWORD SetBitmapBits(DWORD dwCount, const void* lpBits); DWORD GetBitmapBits(DWORD dwCount, LPVOID lpBits) const; CSize SetBitmapDimension(int nWidth, int nHeight); CSize GetBitmapDimension() const; // Implementation public: virtual ~CBitmap(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; #endif }; class CPalette : public CGdiObject { DECLARE_DYNAMIC(CPalette) public: static CPalette* PASCAL FromHandle(HPALETTE hPalette); // Constructors CPalette(); BOOL CreatePalette(LPLOGPALETTE lpLogPalette); BOOL CreateHalftonePalette(CDC* pDC); // Attributes operator HPALETTE() const; int GetEntryCount(); UINT GetPaletteEntries(UINT nStartIndex, UINT nNumEntries, LPPALETTEENTRY lpPaletteColors) const; UINT SetPaletteEntries(UINT nStartIndex, UINT nNumEntries, LPPALETTEENTRY lpPaletteColors); // Operations void AnimatePalette(UINT nStartIndex, UINT nNumEntries, LPPALETTEENTRY lpPaletteColors); UINT GetNearestPaletteIndex(COLORREF crColor) const; BOOL ResizePalette(UINT nNumEntries); // Implementation virtual ~CPalette(); }; class CRgn : public CGdiObject { DECLARE_DYNAMIC(CRgn) public: static CRgn* PASCAL FromHandle(HRGN hRgn); operator HRGN() const; // Constructors CRgn(); BOOL CreateRectRgn(int x1, int y1, int x2, int y2); BOOL CreateRectRgnIndirect(LPCRECT lpRect); BOOL CreateEllipticRgn(int x1, int y1, int x2, int y2); BOOL CreateEllipticRgnIndirect(LPCRECT lpRect); BOOL CreatePolygonRgn(LPPOINT lpPoints, int nCount, int nMode); BOOL CreatePolyPolygonRgn(LPPOINT lpPoints, LPINT lpPolyCounts, int nCount, int nPolyFillMode); BOOL CreateRoundRectRgn(int x1, int y1, int x2, int y2, int x3, int y3); BOOL CreateFromPath(CDC* pDC); BOOL CreateFromData(const XFORM* lpXForm, int nCount, const RGNDATA* pRgnData); // Operations void SetRectRgn(int x1, int y1, int x2, int y2); void SetRectRgn(LPCRECT lpRect); int CombineRgn(CRgn* pRgn1, CRgn* pRgn2, int nCombineMode); int CopyRgn(CRgn* pRgnSrc); BOOL EqualRgn(CRgn* pRgn) const; int OffsetRgn(int x, int y); int OffsetRgn(POINT point); int GetRgnBox(LPRECT lpRect) const; BOOL PtInRegion(int x, int y) const; BOOL PtInRegion(POINT point) const; BOOL RectInRegion(LPCRECT lpRect) const; int GetRegionData(LPRGNDATA lpRgnData, int nCount) const; // Implementation virtual ~CRgn(); }; ///////////////////////////////////////////////////////////////////////////// // The device context class CDC : public CObject { DECLARE_DYNCREATE(CDC) public: // Attributes HDC m_hDC; // The output DC (must be first data member) HDC m_hAttribDC; // The Attribute DC operator HDC() const; HDC GetSafeHdc() const; // Always returns the Output DC CWnd* GetWindow() const; static CDC* PASCAL FromHandle(HDC hDC); static void PASCAL DeleteTempMap(); BOOL Attach(HDC hDC); // Attach/Detach affects only the Output DC HDC Detach(); virtual void SetAttribDC(HDC hDC); // Set the Attribute DC virtual void SetOutputDC(HDC hDC); // Set the Output DC virtual void ReleaseAttribDC(); // Release the Attribute DC virtual void ReleaseOutputDC(); // Release the Output DC BOOL IsPrinting() const; // TRUE if being used for printing CPen* GetCurrentPen() const; CBrush* GetCurrentBrush() const; CPalette* GetCurrentPalette() const; CFont* GetCurrentFont() const; CBitmap* GetCurrentBitmap() const; // for bidi and mirrored localization DWORD GetLayout() const; DWORD SetLayout(DWORD dwLayout); // Constructors CDC(); BOOL CreateDC(LPCTSTR lpszDriverName, LPCTSTR lpszDeviceName, LPCTSTR lpszOutput, const void* lpInitData); BOOL CreateIC(LPCTSTR lpszDriverName, LPCTSTR lpszDeviceName, LPCTSTR lpszOutput, const void* lpInitData); BOOL CreateCompatibleDC(CDC* pDC); BOOL DeleteDC(); // Device-Context Functions virtual int SaveDC(); virtual BOOL RestoreDC(int nSavedDC); int GetDeviceCaps(int nIndex) const; UINT SetBoundsRect(LPCRECT lpRectBounds, UINT flags); UINT GetBoundsRect(LPRECT lpRectBounds, UINT flags); BOOL ResetDC(const DEVMODE* lpDevMode); // Drawing-Tool Functions CPoint GetBrushOrg() const; CPoint SetBrushOrg(int x, int y); CPoint SetBrushOrg(POINT point); int EnumObjects(int nObjectType, int (CALLBACK* lpfn)(LPVOID, LPARAM), LPARAM lpData); // Type-safe selection helpers public: virtual CGdiObject* SelectStockObject(int nIndex); CPen* SelectObject(CPen* pPen); CBrush* SelectObject(CBrush* pBrush); virtual CFont* SelectObject(CFont* pFont); CBitmap* SelectObject(CBitmap* pBitmap); int SelectObject(CRgn* pRgn); // special return for regions CGdiObject* SelectObject(CGdiObject* pObject); // CGdiObject* provided so compiler doesn't use SelectObject(HGDIOBJ) // Color and Color Palette Functions COLORREF GetNearestColor(COLORREF crColor) const; CPalette* SelectPalette(CPalette* pPalette, BOOL bForceBackground); UINT RealizePalette(); void UpdateColors(); // Drawing-Attribute Functions COLORREF GetBkColor() const; int GetBkMode() const; int GetPolyFillMode() const; int GetROP2() const; int GetStretchBltMode() const; COLORREF GetTextColor() const; virtual COLORREF SetBkColor(COLORREF crColor); int SetBkMode(int nBkMode); int SetPolyFillMode(int nPolyFillMode); int SetROP2(int nDrawMode); int SetStretchBltMode(int nStretchMode); virtual COLORREF SetTextColor(COLORREF crColor); BOOL GetColorAdjustment(LPCOLORADJUSTMENT lpColorAdjust) const; BOOL SetColorAdjustment(const COLORADJUSTMENT* lpColorAdjust); // Mapping Functions int GetMapMode() const; CPoint GetViewportOrg() const; virtual int SetMapMode(int nMapMode); // Viewport Origin virtual CPoint SetViewportOrg(int x, int y); CPoint SetViewportOrg(POINT point); virtual CPoint OffsetViewportOrg(int nWidth, int nHeight); // Viewport Extent CSize GetViewportExt() const; virtual CSize SetViewportExt(int cx, int cy); CSize SetViewportExt(SIZE size); virtual CSize ScaleViewportExt(int xNum, int xDenom, int yNum, int yDenom); // Window Origin CPoint GetWindowOrg() const; CPoint SetWindowOrg(int x, int y); CPoint SetWindowOrg(POINT point); CPoint OffsetWindowOrg(int nWidth, int nHeight); // Window extent CSize GetWindowExt() const; virtual CSize SetWindowExt(int cx, int cy); CSize SetWindowExt(SIZE size); virtual CSize ScaleWindowExt(int xNum, int xDenom, int yNum, int yDenom); // Coordinate Functions void DPtoLP(LPPOINT lpPoints, int nCount = 1) const; void DPtoLP(LPRECT lpRect) const; void DPtoLP(LPSIZE lpSize) const; void LPtoDP(LPPOINT lpPoints, int nCount = 1) const; void LPtoDP(LPRECT lpRect) const; void LPtoDP(LPSIZE lpSize) const; // Special Coordinate Functions (useful for dealing with metafiles and OLE) void DPtoHIMETRIC(LPSIZE lpSize) const; void LPtoHIMETRIC(LPSIZE lpSize) const; void HIMETRICtoDP(LPSIZE lpSize) const; void HIMETRICtoLP(LPSIZE lpSize) const; // Region Functions BOOL FillRgn(CRgn* pRgn, CBrush* pBrush); BOOL FrameRgn(CRgn* pRgn, CBrush* pBrush, int nWidth, int nHeight); BOOL InvertRgn(CRgn* pRgn); BOOL PaintRgn(CRgn* pRgn); // Clipping Functions virtual int GetClipBox(LPRECT lpRect) const; virtual BOOL PtVisible(int x, int y) const; BOOL PtVisible(POINT point) const; virtual BOOL RectVisible(LPCRECT lpRect) const; int SelectClipRgn(CRgn* pRgn); int ExcludeClipRect(int x1, int y1, int x2, int y2); int ExcludeClipRect(LPCRECT lpRect); int ExcludeUpdateRgn(CWnd* pWnd); int IntersectClipRect(int x1, int y1, int x2, int y2); int IntersectClipRect(LPCRECT lpRect); int OffsetClipRgn(int x, int y); int OffsetClipRgn(SIZE size); int SelectClipRgn(CRgn* pRgn, int nMode); // Line-Output Functions CPoint GetCurrentPosition() const; CPoint MoveTo(int x, int y); CPoint MoveTo(POINT point); BOOL LineTo(int x, int y); BOOL LineTo(POINT point); BOOL Arc(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4); BOOL Arc(LPCRECT lpRect, POINT ptStart, POINT ptEnd); BOOL Polyline(LPPOINT lpPoints, int nCount); BOOL AngleArc(int x, int y, int nRadius, float fStartAngle, float fSweepAngle); BOOL ArcTo(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4); BOOL ArcTo(LPCRECT lpRect, POINT ptStart, POINT ptEnd); int GetArcDirection() const; int SetArcDirection(int nArcDirection); BOOL PolyDraw(const POINT* lpPoints, const BYTE* lpTypes, int nCount); BOOL PolylineTo(const POINT* lpPoints, int nCount); BOOL PolyPolyline(const POINT* lpPoints, const DWORD* lpPolyPoints, int nCount); BOOL PolyBezier(const POINT* lpPoints, int nCount); BOOL PolyBezierTo(const POINT* lpPoints, int nCount); // Simple Drawing Functions void FillRect(LPCRECT lpRect, CBrush* pBrush); void FrameRect(LPCRECT lpRect, CBrush* pBrush); void InvertRect(LPCRECT lpRect); BOOL DrawIcon(int x, int y, HICON hIcon); BOOL DrawIcon(POINT point, HICON hIcon); #if (WINVER >= 0x400) BOOL DrawState(CPoint pt, CSize size, HBITMAP hBitmap, UINT nFlags, HBRUSH hBrush = NULL); BOOL DrawState(CPoint pt, CSize size, CBitmap* pBitmap, UINT nFlags, CBrush* pBrush = NULL); BOOL DrawState(CPoint pt, CSize size, HICON hIcon, UINT nFlags, HBRUSH hBrush = NULL); BOOL DrawState(CPoint pt, CSize size, HICON hIcon, UINT nFlags, CBrush* pBrush = NULL); BOOL DrawState(CPoint pt, CSize size, LPCTSTR lpszText, UINT nFlags, BOOL bPrefixText = TRUE, int nTextLen = 0, HBRUSH hBrush = NULL); BOOL DrawState(CPoint pt, CSize size, LPCTSTR lpszText, UINT nFlags, BOOL bPrefixText = TRUE, int nTextLen = 0, CBrush* pBrush = NULL); BOOL DrawState(CPoint pt, CSize size, DRAWSTATEPROC lpDrawProc, LPARAM lData, UINT nFlags, HBRUSH hBrush = NULL); BOOL DrawState(CPoint pt, CSize size, DRAWSTATEPROC lpDrawProc, LPARAM lData, UINT nFlags, CBrush* pBrush = NULL); #endif // Ellipse and Polygon Functions BOOL Chord(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4); BOOL Chord(LPCRECT lpRect, POINT ptStart, POINT ptEnd); void DrawFocusRect(LPCRECT lpRect); BOOL Ellipse(int x1, int y1, int x2, int y2); BOOL Ellipse(LPCRECT lpRect); BOOL Pie(int x1, int y1, int x2, int y2, int x3, int y3, int x4, int y4); BOOL Pie(LPCRECT lpRect, POINT ptStart, POINT ptEnd); BOOL Polygon(LPPOINT lpPoints, int nCount); BOOL PolyPolygon(LPPOINT lpPoints, LPINT lpPolyCounts, int nCount); BOOL Rectangle(int x1, int y1, int x2, int y2); BOOL Rectangle(LPCRECT lpRect); BOOL RoundRect(int x1, int y1, int x2, int y2, int x3, int y3); BOOL RoundRect(LPCRECT lpRect, POINT point); // Bitmap Functions BOOL PatBlt(int x, int y, int nWidth, int nHeight, DWORD dwRop); BOOL BitBlt(int x, int y, int nWidth, int nHeight, CDC* pSrcDC, int xSrc, int ySrc, DWORD dwRop); BOOL StretchBlt(int x, int y, int nWidth, int nHeight, CDC* pSrcDC, int xSrc, int ySrc, int nSrcWidth, int nSrcHeight, DWORD dwRop); COLORREF GetPixel(int x, int y) const; COLORREF GetPixel(POINT point) const; COLORREF SetPixel(int x, int y, COLORREF crColor); COLORREF SetPixel(POINT point, COLORREF crColor); BOOL FloodFill(int x, int y, COLORREF crColor); BOOL ExtFloodFill(int x, int y, COLORREF crColor, UINT nFillType); BOOL MaskBlt(int x, int y, int nWidth, int nHeight, CDC* pSrcDC, int xSrc, int ySrc, CBitmap& maskBitmap, int xMask, int yMask, DWORD dwRop); BOOL PlgBlt(LPPOINT lpPoint, CDC* pSrcDC, int xSrc, int ySrc, int nWidth, int nHeight, CBitmap& maskBitmap, int xMask, int yMask); BOOL SetPixelV(int x, int y, COLORREF crColor); BOOL SetPixelV(POINT point, COLORREF crColor); // Text Functions virtual BOOL TextOut(int x, int y, LPCTSTR lpszString, int nCount); BOOL TextOut(int x, int y, const CString& str); virtual BOOL ExtTextOut(int x, int y, UINT nOptions, LPCRECT lpRect, LPCTSTR lpszString, UINT nCount, LPINT lpDxWidths); BOOL ExtTextOut(int x, int y, UINT nOptions, LPCRECT lpRect, const CString& str, LPINT lpDxWidths); virtual CSize TabbedTextOut(int x, int y, LPCTSTR lpszString, int nCount, int nTabPositions, LPINT lpnTabStopPositions, int nTabOrigin); CSize TabbedTextOut(int x, int y, const CString& str, int nTabPositions, LPINT lpnTabStopPositions, int nTabOrigin); virtual int DrawText(LPCTSTR lpszString, int nCount, LPRECT lpRect, UINT nFormat); int DrawText(const CString& str, LPRECT lpRect, UINT nFormat); CSize GetTextExtent(LPCTSTR lpszString, int nCount) const; CSize GetTextExtent(const CString& str) const; CSize GetOutputTextExtent(LPCTSTR lpszString, int nCount) const; CSize GetOutputTextExtent(const CString& str) const; CSize GetTabbedTextExtent(LPCTSTR lpszString, int nCount, int nTabPositions, LPINT lpnTabStopPositions) const; CSize GetTabbedTextExtent(const CString& str, int nTabPositions, LPINT lpnTabStopPositions) const; CSize GetOutputTabbedTextExtent(LPCTSTR lpszString, int nCount, int nTabPositions, LPINT lpnTabStopPositions) const; CSize GetOutputTabbedTextExtent(const CString& str, int nTabPositions, LPINT lpnTabStopPositions) const; virtual BOOL GrayString(CBrush* pBrush, BOOL (CALLBACK* lpfnOutput)(HDC, LPARAM, int), LPARAM lpData, int nCount, int x, int y, int nWidth, int nHeight); UINT GetTextAlign() const; UINT SetTextAlign(UINT nFlags); int GetTextFace(int nCount, LPTSTR lpszFacename) const; int GetTextFace(CString& rString) const; BOOL GetTextMetrics(LPTEXTMETRIC lpMetrics) const; BOOL GetOutputTextMetrics(LPTEXTMETRIC lpMetrics) const; int SetTextJustification(int nBreakExtra, int nBreakCount); int GetTextCharacterExtra() const; int SetTextCharacterExtra(int nCharExtra); // Advanced Drawing #if (WINVER >= 0x400) BOOL DrawEdge(LPRECT lpRect, UINT nEdge, UINT nFlags); BOOL DrawFrameControl(LPRECT lpRect, UINT nType, UINT nState); #endif // Scrolling Functions BOOL ScrollDC(int dx, int dy, LPCRECT lpRectScroll, LPCRECT lpRectClip, CRgn* pRgnUpdate, LPRECT lpRectUpdate); // Font Functions BOOL GetCharWidth(UINT nFirstChar, UINT nLastChar, LPINT lpBuffer) const; BOOL GetOutputCharWidth(UINT nFirstChar, UINT nLastChar, LPINT lpBuffer) const; DWORD SetMapperFlags(DWORD dwFlag); CSize GetAspectRatioFilter() const; BOOL GetCharABCWidths(UINT nFirstChar, UINT nLastChar, LPABC lpabc) const; DWORD GetFontData(DWORD dwTable, DWORD dwOffset, LPVOID lpData, DWORD cbData) const; int GetKerningPairs(int nPairs, LPKERNINGPAIR lpkrnpair) const; UINT GetOutlineTextMetrics(UINT cbData, LPOUTLINETEXTMETRIC lpotm) const; DWORD GetGlyphOutline(UINT nChar, UINT nFormat, LPGLYPHMETRICS lpgm, DWORD cbBuffer, LPVOID lpBuffer, const MAT2* lpmat2) const; BOOL GetCharABCWidths(UINT nFirstChar, UINT nLastChar, LPABCFLOAT lpABCF) const; BOOL GetCharWidth(UINT nFirstChar, UINT nLastChar, float* lpFloatBuffer) const; // Printer/Device Escape Functions virtual int Escape(int nEscape, int nCount, LPCSTR lpszInData, LPVOID lpOutData); int Escape(int nEscape, int nInputSize, LPCSTR lpszInputData, int nOutputSize, LPSTR lpszOutputData); int DrawEscape(int nEscape, int nInputSize, LPCSTR lpszInputData); // Escape helpers int StartDoc(LPCTSTR lpszDocName); // old Win3.0 version int StartDoc(LPDOCINFO lpDocInfo); int StartPage(); int EndPage(); int SetAbortProc(BOOL (CALLBACK* lpfn)(HDC, int)); int AbortDoc(); int EndDoc(); // MetaFile Functions BOOL PlayMetaFile(HMETAFILE hMF); BOOL PlayMetaFile(HENHMETAFILE hEnhMetaFile, LPCRECT lpBounds); BOOL AddMetaFileComment(UINT nDataSize, const BYTE* pCommentData); // can be used for enhanced metafiles only // Path Functions BOOL AbortPath(); BOOL BeginPath(); BOOL CloseFigure(); BOOL EndPath(); BOOL FillPath(); BOOL FlattenPath(); BOOL StrokeAndFillPath(); BOOL StrokePath(); BOOL WidenPath(); float GetMiterLimit() const; BOOL SetMiterLimit(float fMiterLimit); int GetPath(LPPOINT lpPoints, LPBYTE lpTypes, int nCount) const; BOOL SelectClipPath(int nMode); // Misc Helper Functions static CBrush* PASCAL GetHalftoneBrush(); void DrawDragRect(LPCRECT lpRect, SIZE size, LPCRECT lpRectLast, SIZE sizeLast, CBrush* pBrush = NULL, CBrush* pBrushLast = NULL); void FillSolidRect(LPCRECT lpRect, COLORREF clr); void FillSolidRect(int x, int y, int cx, int cy, COLORREF clr); void Draw3dRect(LPCRECT lpRect, COLORREF clrTopLeft, COLORREF clrBottomRight); void Draw3dRect(int x, int y, int cx, int cy, COLORREF clrTopLeft, COLORREF clrBottomRight); // Implementation public: virtual ~CDC(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif // advanced use and implementation BOOL m_bPrinting; HGDIOBJ SelectObject(HGDIOBJ); // do not use for regions protected: // used for implementation of non-virtual SelectObject calls static CGdiObject* PASCAL SelectGdiObject(HDC hDC, HGDIOBJ h); }; ///////////////////////////////////////////////////////////////////////////// // CDC Helpers class CPaintDC : public CDC { DECLARE_DYNAMIC(CPaintDC) // Constructors public: CPaintDC(CWnd* pWnd); // BeginPaint // Attributes protected: HWND m_hWnd; public: PAINTSTRUCT m_ps; // actual paint struct! // Implementation public: virtual ~CPaintDC(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif }; class CClientDC : public CDC { DECLARE_DYNAMIC(CClientDC) // Constructors public: CClientDC(CWnd* pWnd); // Attributes protected: HWND m_hWnd; // Implementation public: virtual ~CClientDC(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif }; class CWindowDC : public CDC { DECLARE_DYNAMIC(CWindowDC) // Constructors public: CWindowDC(CWnd* pWnd); // Attributes protected: HWND m_hWnd; // Implementation public: virtual ~CWindowDC(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif }; ///////////////////////////////////////////////////////////////////////////// // CMenu class CMenu : public CObject { DECLARE_DYNCREATE(CMenu) public: // Constructors CMenu(); BOOL CreateMenu(); BOOL CreatePopupMenu(); BOOL LoadMenu(LPCTSTR lpszResourceName); BOOL LoadMenu(UINT nIDResource); BOOL LoadMenuIndirect(const void* lpMenuTemplate); BOOL DestroyMenu(); // Attributes HMENU m_hMenu; // must be first data member HMENU GetSafeHmenu() const; operator HMENU() const; static CMenu* PASCAL FromHandle(HMENU hMenu); static void PASCAL DeleteTempMap(); BOOL Attach(HMENU hMenu); HMENU Detach(); // CMenu Operations BOOL DeleteMenu(UINT nPosition, UINT nFlags); BOOL TrackPopupMenu(UINT nFlags, int x, int y, CWnd* pWnd, LPCRECT lpRect = 0); BOOL operator==(const CMenu& menu) const; BOOL operator!=(const CMenu& menu) const; // CMenuItem Operations BOOL AppendMenu(UINT nFlags, UINT nIDNewItem = 0, LPCTSTR lpszNewItem = NULL); BOOL AppendMenu(UINT nFlags, UINT nIDNewItem, const CBitmap* pBmp); UINT CheckMenuItem(UINT nIDCheckItem, UINT nCheck); UINT EnableMenuItem(UINT nIDEnableItem, UINT nEnable); UINT GetMenuItemCount() const; UINT GetMenuItemID(int nPos) const; UINT GetMenuState(UINT nID, UINT nFlags) const; int GetMenuString(UINT nIDItem, LPTSTR lpString, int nMaxCount, UINT nFlags) const; int GetMenuString(UINT nIDItem, CString& rString, UINT nFlags) const; BOOL GetMenuItemInfo(UINT nIDItem, LPMENUITEMINFO lpMenuItemInfo, BOOL fByPos = FALSE); CMenu* GetSubMenu(int nPos) const; BOOL InsertMenu(UINT nPosition, UINT nFlags, UINT nIDNewItem = 0, LPCTSTR lpszNewItem = NULL); BOOL InsertMenu(UINT nPosition, UINT nFlags, UINT nIDNewItem, const CBitmap* pBmp); BOOL ModifyMenu(UINT nPosition, UINT nFlags, UINT nIDNewItem = 0, LPCTSTR lpszNewItem = NULL); BOOL ModifyMenu(UINT nPosition, UINT nFlags, UINT nIDNewItem, const CBitmap* pBmp); BOOL RemoveMenu(UINT nPosition, UINT nFlags); BOOL SetMenuItemBitmaps(UINT nPosition, UINT nFlags, const CBitmap* pBmpUnchecked, const CBitmap* pBmpChecked); BOOL CheckMenuRadioItem(UINT nIDFirst, UINT nIDLast, UINT nIDItem, UINT nFlags); BOOL SetDefaultItem(UINT uItem, BOOL fByPos = FALSE); UINT GetDefaultItem(UINT gmdiFlags, BOOL fByPos = FALSE); // Context Help Functions BOOL SetMenuContextHelpId(DWORD dwContextHelpId); DWORD GetMenuContextHelpId() const; // Overridables (must override draw and measure for owner-draw menu items) virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct); virtual void MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct); // Implementation public: virtual ~CMenu(); #ifdef _DEBUG virtual void AssertValid() const; virtual void Dump(CDumpContext& dc) const; #endif static CMenu* PASCAL CMenu::FromHandlePermanent(HMENU hMenu); }; ///////////////////////////////////////////////////////////////////////////// // Window message map handling struct AFX_MSGMAP_ENTRY; // declared below after CWnd struct AFX_MSGMAP { #ifdef _AFXDLL const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)(); #else const AFX_MSGMAP* pBaseMap; #endif const AFX_MSGMAP_ENTRY* lpEntries; }; #ifdef _AFXDLL #define DECLARE_MESSAGE_MAP() \ private: \ static const AFX_MSGMAP_ENTRY _messageEntries[]; \ protected: \ static AFX_DATA const AFX_MSGMAP messageMap; \ static const AFX_MSGMAP* PASCAL _GetBaseMessageMap(); \ virtual const AFX_MSGMAP* GetMessageMap() const; \ #else #define DECLARE_MESSAGE_MAP() \ private: \ static const AFX_MSGMAP_ENTRY _messageEntries[]; \ protected: \ static AFX_DATA const AFX_MSGMAP messageMap; \ virtual const AFX_MSGMAP* GetMessageMap() const; \ #endif #ifdef _AFXDLL #define BEGIN_MESSAGE_MAP(theClass, baseClass) \ const AFX_MSGMAP* PASCAL theClass::_GetBaseMessageMap() \ { return &baseClass;::messageMap; } \ const AFX_MSGMAP* theClass::GetMessageMap() const \ { return &theClass;::messageMap; } \ AFX_COMDAT AFX_DATADEF const AFX_MSGMAP theClass::messageMap = \ { &theClass;::_GetBaseMessageMap, &theClass;::_messageEntries[0] }; \ AFX_COMDAT const AFX_MSGMAP_ENTRY theClass::_messageEntries[] = \ { \ #else #define BEGIN_MESSAGE_MAP(theClass, baseClass) \ const AFX_MSGMAP* theClass::GetMessageMap() const \ { return &theClass;::messageMap; } \ AFX_COMDAT AFX_DATADEF const AFX_MSGMAP theClass::messageMap = \ { &baseClass;::messageMap, &theClass;::_messageEntries[0] }; \ AFX_COMDAT const AFX_MSGMAP_ENTRY theClass::_messageEntries[] = \ { \ #endif #define END_MESSAGE_MAP() \ {0, 0, 0, 0, AfxSig_end, (AFX_PMSG)0 } \ }; \ // Message map signature values and macros in separate header #include ///////////////////////////////////////////////////////////////////////////// // Dialog data exchange (DDX_) and validation (DDV_) // CDataExchange - for data exchange and validation class CDataExchange { // Attributes public: BOOL m_bSaveAndValidate; // TRUE => save and validate data CWnd* m_pDlgWnd; // container usually a dialog // Operations (for implementors of DDX and DDV procs) HWND PrepareCtrl(int nIDC); // return HWND of control HWND PrepareEditCtrl(int nIDC); // return HWND of control void Fail(); // will throw exception #ifndef _AFX_NO_OCC_SUPPORT CWnd* PrepareOleCtrl(int nIDC); // for OLE controls in dialog #endif // Implementation CDataExchange(CWnd* pDlgWnd, BOOL bSaveAndValidate); HWND m_hWndLastControl; // last control used (for validation) BOOL m_bEditLastControl; // last control was an edit item }; #include // standard DDX_ and DDV_ routines ///////////////////////////////////////////////////////////////////////////// // OLE types typedef LONG HRESULT; struct IUnknown; typedef IUnknown* LPUNKNOWN; struct IDispatch; typedef IDispatch* LPDISPATCH; struct IConnectionPoint; typedef IConnectionPoint* LPCONNECTIONPOINT; struct IEnumOLEVERB; typedef IEnumOLEVERB* LPENUMOLEVERB; typedef struct _GUID GUID; typedef GUID IID; typedef GUID CLSID; #ifndef _REFCLSID_DEFINED #define REFCLSID const CLSID & #endif typedef long DISPID; typedef unsigned short VARTYPE; typedef long SCODE; #if defined(WIN32) && !defined(OLE2ANSI) typedef WCHAR OLECHAR; #else typedef char OLECHAR; #endif typedef OLECHAR* BSTR; struct tagDISPPARAMS; typedef tagDISPPARAMS DISPPARAMS; struct tagVARIANT; typedef tagVARIANT VARIANT; struct ITypeInfo; typedef ITypeInfo* LPTYPEINFO; struct ITypeLib; typedef ITypeLib* LPTYPELIB; ///////////////////////////////////////////////////////////////////////////// // CCmdTarget // private structures struct AFX_CMDHANDLERINFO; // info about where the command is handled struct AFX_EVENT; // info about an event class CTypeLibCache; // cache for OLE type libraries ///////////////////////////////////////////////////////////////////////////// // OLE interface map handling (more in AFXDISP.H) #ifndef _AFX_NO_OLE_SUPPORT struct AFX_INTERFACEMAP_ENTRY { const void* piid; // the interface id (IID) (NULL for aggregate) size_t nOffset; // offset of the interface vtable from m_unknown }; struct AFX_INTERFACEMAP { #ifdef _AFXDLL const AFX_INTERFACEMAP* (PASCAL* pfnGetBaseMap)(); // NULL is root class #else const AFX_INTERFACEMAP* pBaseMap; #endif const AFX_INTERFACEMAP_ENTRY* pEntry; // map for this class }; #ifdef _AFXDLL #define DECLARE_INTERFACE_MAP() \ private: \ static const AFX_INTERFACEMAP_ENTRY _interfaceEntries[]; \ protected: \ static AFX_DATA const AFX_INTERFACEMAP interfaceMap; \ static const AFX_INTERFACEMAP* PASCAL _GetBaseInterfaceMap(); \ virtual const AFX_INTERFACEMAP* GetInterfaceMap() const; \ #else #define DECLARE_INTERFACE_MAP() \ private: \ static const AFX_INTERFACEMAP_ENTRY _interfaceEntries[]; \ protected: \ static AFX_DATA const AFX_INTERFACEMAP interfaceMap; \ virtual const AFX_INTERFACEMAP* GetInterfaceMap() const; \ #endif #endif //!_AFX_NO_OLE_SUPPORT ///////////////////////////////////////////////////////////////////////////// // OLE dispatch map handling (more in AFXDISP.H) #ifndef _AFX_NO_OLE_SUPPORT struct AFX_DISPMAP_ENTRY; struct AFX_DISPMAP { #ifdef _AFXDLL const AFX_DISPMAP* (PASCAL* pfnGetBaseMap)(); #else const AFX_DISPMAP* pBaseMap; #endif const AFX_DISPMAP_ENTRY* lpEntries; UINT* lpEntryCount; DWORD* lpStockPropMask; }; #ifdef _AFXDLL #define DECLARE_DISPATCH_MAP() \ private: \ static const AFX_DISPMAP_ENTRY _dispatchEntries[]; \ static UINT _dispatchEntryCount; \ static DWORD _dwStockPropMask; \ protected: \ static AFX_DATA const AFX_DISPMAP dispatchMap; \ static const AFX_DISPMAP* PASCAL _GetBaseDispatchMap(); \ virtual const AFX_DISPMAP* GetDispatchMap() const; \ #else #define DECLARE_DISPATCH_MAP() \ private: \ static const AFX_DISPMAP_ENTRY _dispatchEntries[]; \ static UINT _dispatchEntryCount; \ static DWORD _dwStockPropMask; \ protected: \ static AFX_DATA const AFX_DISPMAP dispatchMap; \ virtual const AFX_DISPMAP* GetDispatchMap() const; \ #endif #endif //!_AFX_NO_OLE_SUPPORT ///////////////////////////////////////////////////////////////////////////// // OLE Document Object command target handling #ifndef _AFX_NO_DOCOBJECT_SUPPORT struct AFX_OLECMDMAP_ENTRY { const GUID* pguid; // id of the command group ULONG cmdID; // OLECMD ID UINT nID; // corresponding WM_COMMAND message ID }; struct AFX_OLECMDMAP { #ifdef _AFXDLL const AFX_OLECMDMAP* (PASCAL* pfnGetBaseMap)(); #else const AFX_OLECMDMAP* pBaseMap; #endif const AFX_OLECMDMAP_ENTRY* lpEntries; }; #ifdef _AFXDLL #define DECLARE_OLECMD_MAP() \ private: \ static const AFX_OLECMDMAP_ENTRY _commandEntries[]; \ protected: \ static AFX_DATA const AFX_OLECMDMAP commandMap; \ static const AFX_OLECMDMAP* PASCAL _GetBaseCommandMap(); \ virtual const AFX_OLECMDMAP* GetCommandMap() const; \ #else #define DECLARE_OLECMD_MAP() \ private: \ static const AFX_OLECMDMAP_ENTRY _commandEntries[]; \ protected: \ static AFX_DATA const AFX_OLECMDMAP commandMap; \ virtual const AFX_OLECMDMAP* GetCommandMap() const; \ #endif #ifdef _AFXDLL #define BEGIN_OLECMD_MAP(theClass, baseClass) \ const AFX_OLECMDMAP* PASCAL theClass::_GetBaseCommandMap() \ { return &baseClass;::commandMap; } \ const AFX_OLECMDMAP* theClass::GetCommandMap() const \ { return &theClass;::commandMap; } \ AFX_COMDAT AFX_DATADEF const AFX_OLECMDMAP theClass::commandMap = \ { &theClass;::_GetBaseCommandMap, &theClass;::_commandEntries[0] }; \ AFX_COMDAT const AFX_OLECMDMAP_ENTRY theClass::_commandEntries[] = \ { \ #else #define BEGIN_OLECMD_MAP(theClass, baseClass) \ const AFX_OLECMDMAP* theClass::GetCommandMap() const \ { return &theClass;::commandMap; } \ AFX_COMDAT AFX_DATADEF const AFX_OLECMDMAP theClass::commandMap = \ { &baseClass;::commandMap, &theClass;::_commandEntries[0] }; \ AFX_COMDAT const AFX_OLECMDMAP_ENTRY theClass::_commandEntries[] = \ { \ #endif #define END_OLECMD_MAP() \ {NULL, 0, 0} \ }; \ class COleCmdUI; #endif //!_AFX_NO_DOCOBJECT_SUPPORT ///////////////////////////////////////////////////////////////////////////// // OLE event sink map handling (more in AFXDISP.H) #ifndef _AFX_NO_OCC_SUPPORT struct AFX_EVENTSINKMAP_ENTRY; struct AFX_EVENTSINKMAP { #ifdef _AFXDLL const AFX_EVENTSINKMAP* (PASCAL* pfnGetBaseMap)(); #else const AFX_EVENTSINKMAP* pBaseMap; #endif const AFX_EVENTSINKMAP_ENTRY* lpEntries; UINT* lpEntryCount; }; #ifdef _AFXDLL #define DECLARE_EVENTSINK_MAP() \ private: \ static const AFX_EVENTSINKMAP_ENTRY _eventsinkEntries[]; \ static UINT _eventsinkEntryCount; \ protected: \ static AFX_DATA const AFX_EVENTSINKMAP eventsinkMap; \ static const AFX_EVENTSINKMAP* PASCAL _GetBaseEventSinkMap(); \ virtual const AFX_EVENTSINKMAP* GetEventSinkMap() const; \ #else #define DECLARE_EVENTSINK_MAP() \ private: \ static const AFX_EVENTSINKMAP_ENTRY _eventsinkEntries[]; \ static UINT _eventsinkEntryCount; \ protected: \ static AFX_DATA const AFX_EVENTSINKMAP eventsinkMap; \ virtual const AFX_EVENTSINKMAP* GetEventSinkMap() const; \ #endif #endif //!_AFX_NO_OCC_SUPPORT ///////////////////////////////////////////////////////////////////////////// // OLE connection map handling (more in AFXDISP.H) #ifndef _AFX_NO_OLE_SUPPORT struct AFX_CONNECTIONMAP_ENTRY { const void* piid; // the interface id (IID) size_t nOffset; // offset of the interface vtable from m_unknown }; struct AFX_CONNECTIONMAP { #ifdef _AFXDLL const AFX_CONNECTIONMAP* (PASCAL* pfnGetBaseMap)(); // NULL is root class #else const AFX_CONNECTIONMAP* pBaseMap; #endif const AFX_CONNECTIONMAP_ENTRY* pEntry; // map for this class }; #ifdef _AFXDLL #define DECLARE_CONNECTION_MAP() \ private: \ static const AFX_CONNECTIONMAP_ENTRY _connectionEntries[]; \ protected: \ static AFX_DATA const AFX_CONNECTIONMAP connectionMap; \ static const AFX_CONNECTIONMAP* PASCAL _GetBaseConnectionMap(); \ virtual const AFX_CONNECTIONMAP* GetConnectionMap() const; \ #else #define DECLARE_CONNECTION_MAP() \ private: \ static const AFX_CONNECTIONMAP_ENTRY _connectionEntries[]; \ protected: \ static AFX_DATA const AFX_CONNECTIONMAP connectionMap; \ virtual const AFX_CONNECTIONMAP* GetConnectionMap() const; \ #endif #endif //!_AFX_NO_OLE_SUPPORT ///////////////////////////////////////////////////////////////////////////// // CCmdTarget proper #ifndef _AFX_NO_OCC_SUPPORT class COccManager; // forward reference (see ..\src\occimpl.h) #endif #ifdef _AFXDLL class CCmdTarget : public CObject #else class AFX_NOVTABLE CCmdTarget : public CObject #endif { DECLARE_DYNAMIC(CCmdTarget) protected: public: // Constructors CCmdTarget(); // Attributes LPDISPATCH GetIDispatch(BOOL bAddRef); // retrieve IDispatch part of CCmdTarget static CCmdTarget* PASCAL FromIDispatch(LPDISPATCH lpDispatch); // map LPDISPATCH back to CCmdTarget* (inverse of GetIDispatch) BOOL IsResultExpected(); // returns TRUE if automation function should return a value // Operations void EnableAutomation(); // call in constructor to wire up IDispatch void EnableConnections(); // call in constructor to wire up IConnectionPointContainer void BeginWaitCursor(); void EndWaitCursor(); void RestoreWaitCursor(); // call after messagebox #ifndef _AFX_NO_OLE_SUPPORT // dispatch OLE verbs through the message map BOOL EnumOleVerbs(LPENUMOLEVERB* ppenumOleVerb); BOOL DoOleVerb(LONG iVerb, LPMSG lpMsg, HWND hWndParent, LPCRECT lpRect); #endif // Overridables // route and dispatch standard command message types // (more sophisticated than OnCommand) virtual BOOL OnCmdMsg(UINT nID, int nCode, void* pExtra, AFX_CMDHANDLERINFO* pHandlerInfo); #ifndef _AFX_NO_OLE_SUPPORT // called when last OLE reference is released virtual void OnFinalRelease(); #endif #ifndef _AFX_NO_OLE_SUPPORT // called before dispatching to an automation handler function virtual BOOL IsInvokeAllowed(DISPID dispid); #endif #ifndef _AFX_NO_OLE_SUPPORT // support for OLE type libraries void EnableTypeLib(); HRESULT GetTypeInfoOfGuid(LCID lcid, const GUID& guid, LPTYPEINFO* ppTypeInfo); virtual BOOL GetDispatchIID(IID* pIID); virtual UINT GetTypeInfoCount(); virtual CTypeLibCache* GetTypeLibCache(); virtual HRESULT GetTypeLib(LCID lcid, LPTYPELIB* ppTypeLib); #endif // Implementation public: virtual ~CCmdTarget(); #ifdef _DEBUG virtual void Dump(CDumpContext& dc) const; virtual void AssertValid() const; #endif #ifndef _AFX_NO_OLE_SUPPORT void GetNotSupported(); void SetNotSupported(); #endif protected: friend class CView; CView* GetRoutingView(); CFrameWnd* GetRoutingFrame(); static CView* PASCAL GetRoutingView_(); static CFrameWnd* PASCAL GetRoutingFrame_(); DECLARE_MESSAGE_MAP() // base class - no {{ }} macros #ifndef _AFX_NO_DOCOBJECT_SUPPORT DECLARE_OLECMD_MAP() friend class COleCmdUI; #endif #ifndef _AFX_NO_OLE_SUPPORT DECLARE_DISPATCH_MAP() DECLARE_CONNECTION_MAP() DECLARE_INTERFACE_MAP() #ifndef _AFX_NO_OCC_SUPPORT DECLARE_EVENTSINK_MAP() #endif // !_AFX_NO_OCC_SUPPORT // OLE interface map implementation public: // data used when CCmdTarget is made OLE aware long m_dwRef; LPUNKNOWN m_pOuterUnknown; // external controlling unknown if != NULL DWORD m_xInnerUnknown; // place-holder for inner controlling unknown public: // advanced operations void EnableAggregation(); // call to enable aggregation void ExternalDisconnect(); // forcibly disconnect LPUNKNOWN GetControllingUnknown(); // get controlling IUnknown for aggregate creation // these versions do not delegate to m_pOuterUnknown DWORD InternalQueryInterface(const void*, LPVOID* ppvObj); DWORD InternalAddRef(); DWORD InternalRelease(); // these versions delegate to m_pOuterUnknown DWORD ExternalQueryInterface(const void*, LPVOID* ppvObj); DWORD ExternalAddRef(); DWORD ExternalRelease(); // implementation helpers LPUNKNOWN GetInterface(const void*); LPUNKNOWN QueryAggregates(const void*); // advanced overrideables for implementation virtual BOOL OnCreateAggregates(); virtual LPUNKNOWN GetInterfaceHook(const void*); // OLE automation implementation protected: struct XDispatch { DWORD m_vtbl; // place-holder for IDispatch vtable #ifndef _AFX_NO_NESTED_DERIVATION size_t m_nOffset; #endif } m_xDispatch; BOOL m_bResultExpected; // member variable-based properties void GetStandardProp(const AFX_DISPMAP_ENTRY* pEntry, VARIANT* pvarResult, UINT* puArgErr); SCODE SetStandardProp(const AFX_DISPMAP_ENTRY* pEntry, DISPPARAMS* pDispParams, UINT* puArgErr); // DISPID to dispatch map lookup static UINT PASCAL GetEntryCount(const AFX_DISPMAP* pDispMap); const AFX_DISPMAP_ENTRY* PASCAL GetDispEntry(LONG memid); static LONG PASCAL MemberIDFromName(const AFX_DISPMAP* pDispMap, LPCTSTR lpszName); // helpers for member function calling implementation static UINT PASCAL GetStackSize(const BYTE* pbParams, VARTYPE vtResult); #ifdef _PPC_ SCODE PushStackArgs(BYTE* pStack, const BYTE* pbParams, void* pResult, VARTYPE vtResult, DISPPARAMS* pDispParams, UINT* puArgErr, VARIANT* rgTempVars, UINT nSizeArgs); #else SCODE PushStackArgs(BYTE* pStack, const BYTE* pbParams, void* pResult, VARTYPE vtResult, DISPPARAMS* pDispParams, UINT* puArgErr, VARIANT* rgTempVars); #endif SCODE CallMemberFunc(const AFX_DISPMAP_ENTRY* pEntry, WORD wFlags, VARIANT* pvarResult, DISPPARAMS* pDispParams, UINT* puArgErr); friend class COleDispatchImpl; #ifndef _AFX_NO_OCC_SUPPORT public: // OLE event sink implementation BOOL OnEvent(UINT idCtrl, AFX_EVENT* pEvent, AFX_CMDHANDLERINFO* pHandlerInfo); protected: const AFX_EVENTSINKMAP_ENTRY* PASCAL GetEventSinkEntry(UINT idCtrl, AFX_EVENT* pEvent); #endif // !_AFX_NO_OCC_SUPPORT // OLE connection implementation struct XConnPtContainer { DWORD m_vtbl; // place-holder for IConnectionPointContainer vtable #ifndef _AFX_NO_NESTED_DERIVATION size_t m_nOffset; #endif } m_xConnPtContainer; #ifdef _AFXDLL AFX_MODULE_STATE* m_pModuleState; friend class CInnerUnknown; friend UINT APIENTRY _AfxThreadEntry(void* pParam); #endif virtual BOOL GetExtraConnectionPoints(CPtrArray* pConnPoints); virtual LPCONNECTIONPOINT GetConnectionHook(const IID& iid); friend class COleConnPtContainer; #endif //!_AFX_NO_OLE_SUPPORT }; class CCmdUI // simple helper class { public: // Attributes UINT m_nID; UINT m_nIndex; // menu item or other index // if a menu item CMenu* m_pMenu; // NULL if not a menu CMenu* m_pSubMenu; // sub containing menu item // if a popup sub menu - ID is for first in popup // if from some other window CWnd* m_pOther; // NULL if a menu or not a CWnd // Operations to do in ON_UPDATE_COMMAND_UI virtual void Enable(BOOL bOn = TRUE); virtual void SetCheck(int nCheck = 1); // 0, 1 or 2 (indeterminate) virtual void SetRadio(BOOL bOn = TRUE); virtual void SetText(LPCTSTR lpszText); // Advanced operation void ContinueRouting(); // Implementation CCmdUI(); BOOL m_bEnableChanged; BOOL m_bContinueRouting; UINT m_nIndexMax; // last + 1 for iterating m_nIndex CMenu* m_pParentMenu; // NULL if parent menu not easily determined // (probably a secondary popup menu) BOOL DoUpdate(CCmdTarget* pTarget, BOOL bDisableIfNoHndler); }; // special CCmdUI derived classes are used for other UI paradigms // like toolbar buttons and status indicators // pointer to afx_msg member function #ifndef AFX_MSG_CALL #define AFX_MSG_CALL #endif typedef void (AFX_MSG_CALL CCmdTarget::*AFX_PMSG)(void); enum AFX_DISPMAP_FLAGS { afxDispCustom = 0, afxDispStock = 1 }; struct AFX_DISPMAP_ENTRY { LPCTSTR lpszName; // member/property name long lDispID; // DISPID (may be DISPID_UNKNOWN) LPCSTR lpszParams; // member parameter description WORD vt; // return value type / or type of property AFX_PMSG pfn; // normal member On or, OnGet AFX_PMSG pfnSet; // special member for OnSet size_t nPropOffset; // property offset AFX_DISPMAP_FLAGS flags;// flags (e.g. stock/custom) }; struct AFX_EVENTSINKMAP_ENTRY { AFX_DISPMAP_ENTRY dispEntry; UINT nCtrlIDFirst; UINT nCtrlIDLast; }; // DSC Sink state/reason codes passed to MFC user event handlers enum DSCSTATE { dscNoState = 0, dscOKToDo, dscCancelled, dscSyncBefore, dscAboutToDo, dscFailedToDo, dscSyncAfter, dscDidEvent }; enum DSCREASON { dscNoReason = 0, dscClose, dscCommit, dscDelete, dscEdit, dscInsert, dscModify, dscMove }; ///////////////////////////////////////////////////////////////////////////// // CWnd implementation // structures (see afxext.h) struct CCreateContext; // context for creating things struct CPrintInfo; // print preview customization info struct AFX_MSGMAP_ENTRY { UINT nMessage; // windows message UINT nCode; // control code or WM_NOTIFY code UINT nID; // control ID (or 0 for windows messages) UINT nLastID; // used for entries specifying a range of control id's UINT nSig; // signature type (action) or pointer to message # AFX_PMSG pfn; // routine to call (or special value) }; ///////////////////////////////////////////////////////////////////////////// // CWnd - a Microsoft Windows application window class COleDropTarget; // for more information see AFXOLE.H class COleControlContainer; class COleControlSite; // CWnd::m_nFlags (generic to CWnd) #define WF_TOOLTIPS 0x0001 // window is enabled for tooltips #define WF_TEMPHIDE 0x0002 // window is temporarily hidden #define WF_STAYDISABLED 0x0004 // window should stay disabled #define WF_MODALLOOP 0x0008 // currently in modal loop #define WF_CONTINUEMODAL 0x0010 // modal loop should continue running #define WF_OLECTLCONTAINER 0x0100 // some descendant is an OLE control #define WF_TRACKINGTOOLTIPS 0x0400 // window is enabled for tracking tooltips // CWnd::m_nFlags (specific to CFrameWnd) #define WF_STAYACTIVE 0x0020 // look active even though not active #define WF_NOPOPMSG 0x0040 // ignore WM_POPMESSAGESTRING calls #define WF_MODALDISABLE 0x0080 // window is disabled #define WF_KEEPMINIACTIVE 0x0200 // stay activate even though you are deactivated // flags for CWnd::RunModalLoop #define ML
const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)()解析（转）
const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)() 函数指针，指针指向一个参数为空返回值类型为CObject*的函数。 PASCAL是函数调用约定，说是参数从右往左压栈方式，函数退出时清空堆栈。 VC里面：PASCALCALLBACKWINAPI==__stdcall _stdcall是Pascal程序的缺省调用方式，通常用于Win32 Api中，函数采用从右...
const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)()解析
 const AFX_MSGMAP* (PASCAL* pfnGetBaseMap)() 函数指针，指针指向一个参数为空返回值类型为CObject*的函数。 PASCAL是函数调用约定，说是参数从右往左压栈方式，函数退出时清空堆栈。 VC里面：PASCAL==CALLBACK==WINAPI==__stdcall         _stdcall是Pascal程序的缺省调用方
MFC中的消息映射
MFC中消息处理是封装好的，他会根据消息是调用对应的对象的处理函数，而MFC是怎么做到的呢？ MFC是会自己建一张消息映射表，而自己分发消息就得先获取消息了，这就用到了HOOK了,这样获取到消息后，自己就可以对照MFC中的消息映射表去执行对应的对象的处理函数 MFC消息映射机制执行步骤是：当消息发生，我们用HOOK技术把本来要发送到窗口过程的消息抓获，然后对照一下MFC窗口的消息映射表，如果是...
MFC消息映射与命令传递
DECLARE_MESSAGE_MAP宏 在MFC几乎每个头文件下（类的最后一行声明），都会有这么几行代码： //生成的消息映射函数 protected: DECLARE_MESSAGE_MAP() 我们看一看DECLARE_MESSAGE_MAP到底为何物，查看DECLARE_MESSAGE_MAP源码（c:\ProgramFiles\MicrosoftVisual...
VC/MFC

16,548

社区成员

421,620

社区内容

发帖
与我相关
我的任务
社区描述
VC/MFC相关问题讨论
社区管理员
  • 基础类社区
  • AIGC Browser
  • encoderlee
加入社区
  • 近7日
  • 近30日
  • 至今

加载中

查看更多榜单
社区公告

        VC/MFC社区版块或许是CSDN最“古老”的版块了，记忆之中，与CSDN的年龄几乎差不多。随着时间的推移，MFC技术渐渐的偏离了开发主流，若干年之后的今天，当我们面对着微软的这个经典之笔，内心充满着敬意，那些曾经的记忆，可以说代表着二十年前曾经的辉煌……
        向经典致敬，或许是老一代程序员内心里面难以释怀的感受。互联网大行其道的今天，我们期待着MFC技术能够恢复其曾经的辉煌，或许这个期待会永远成为一种“梦想”，或许一切皆有可能……
        我们希望这个版块可以很好的适配Web时代，期待更好的互联网技术能够使得MFC技术框架得以重现活力，……

试试用AI创作助手写篇文章吧

+ 用AI写文章