如何在对话框中显示gif动画???

[bohut]

如何在对话框中显示gif动画???

[yanw0212]

.h 文件
// PictureEx.h: interface for the CPictureEx class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_PICTUREEX_H__35FE5BEA_3B1F_47C6_9037_11138F47E5DF__INCLUDED_)
#define AFX_PICTUREEX_H__35FE5BEA_3B1F_47C6_9037_11138F47E5DF__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

#include <vector>

//#define GIF_TRACING // uncomment it if you want detailed TRACEs

class CPictureEx : public CStatic
{
public:

struct TFrame // structure that keeps a single frame info
{
IPicture *m_pPicture; // pointer to the interface used for drawing
SIZE m_frameSize;
SIZE m_frameOffset;
UINT m_nDelay; // delay (in 1/100s of a second)
UINT m_nDisposal; // disposal method
};

#pragma pack(1) // turn byte alignment on

enum GIFBlockTypes
{
BLOCK_UNKNOWN,
BLOCK_APPEXT,
BLOCK_COMMEXT,
BLOCK_CONTROLEXT,
BLOCK_PLAINTEXT,
BLOCK_IMAGE,
BLOCK_TRAILER
};

enum ControlExtValues // graphic control extension packed field values
{
GCX_PACKED_DISPOSAL, // disposal method
GCX_PACKED_USERINPUT,
GCX_PACKED_TRANSPCOLOR
};

enum LSDPackedValues // logical screen descriptor packed field values
{
LSD_PACKED_GLOBALCT,
LSD_PACKED_CRESOLUTION,
LSD_PACKED_SORT,
LSD_PACKED_GLOBALCTSIZE
};

enum IDPackedValues // image descriptor packed field values
{
ID_PACKED_LOCALCT,
ID_PACKED_INTERLACE,
ID_PACKED_SORT,
ID_PACKED_LOCALCTSIZE
};

struct TGIFHeader // GIF header
{
char m_cSignature[3]; // Signature - Identifies the GIF Data Stream
// This field contains the fixed value 'GIF'
char m_cVersion[3]; // Version number. May be one of the following:
// "87a" or "89a"
};

struct TGIFLSDescriptor // Logical Screen Descriptor
{
WORD m_wWidth; // 2 bytes. Logical screen width
WORD m_wHeight; // 2 bytes. Logical screen height

unsigned char m_cPacked; // packed field

unsigned char m_cBkIndex; // 1 byte. Background color index
unsigned char m_cPixelAspect; // 1 byte. Pixel aspect ratio
inline int GetPackedValue(enum LSDPackedValues Value);
};

struct TGIFAppExtension // application extension block
{
unsigned char m_cExtIntroducer; // extension introducer (0x21)
unsigned char m_cExtLabel; // app. extension label (0xFF)
unsigned char m_cBlockSize; // fixed value of 11
char m_cAppIdentifier[8]; // application identifier
char m_cAppAuth[3]; // application authentication code
};

struct TGIFControlExt // graphic control extension block
{
unsigned char m_cExtIntroducer; // extension introducer (0x21)
unsigned char m_cControlLabel; // control extension label (0xF9)
unsigned char m_cBlockSize; // fixed value of 4
unsigned char m_cPacked; // packed field
WORD m_wDelayTime; // delay time
unsigned char m_cTColorIndex; // transparent color index
unsigned char m_cBlockTerm; // block terminator (0x00)
public:
inline int GetPackedValue(enum ControlExtValues Value);
};

struct TGIFCommentExt // comment extension block
{
unsigned char m_cExtIntroducer; // extension introducer (0x21)
unsigned char m_cCommentLabel; // comment extension label (0xFE)
};

struct TGIFPlainTextExt // plain text extension block
{
unsigned char m_cExtIntroducer; // extension introducer (0x21)
unsigned char m_cPlainTextLabel; // text extension label (0x01)
unsigned char m_cBlockSize; // fixed value of 12
WORD m_wLeftPos; // text grid left position
WORD m_wTopPos; // text grid top position
WORD m_wGridWidth; // text grid width
WORD m_wGridHeight; // text grid height
unsigned char m_cCellWidth; // character cell width
unsigned char m_cCellHeight; // character cell height
unsigned char m_cFgColor; // text foreground color index
unsigned char m_cBkColor; // text background color index
};

struct TGIFImageDescriptor // image descriptor block
{
unsigned char m_cImageSeparator; // image separator byte (0x2C)
WORD m_wLeftPos; // image left position
WORD m_wTopPos; // image top position
WORD m_wWidth; // image width
WORD m_wHeight; // image height
unsigned char m_cPacked; // packed field
inline int GetPackedValue(enum IDPackedValues Value);
};

#pragma pack() // turn byte alignment off

public:
BOOL GetPaintRect(RECT *lpRect);
BOOL SetPaintRect(const RECT *lpRect);
CPictureEx();
virtual ~CPictureEx();
void Stop(); // stops animation
void UnLoad(); // stops animation plus releases all resources

BOOL IsGIF() const;
BOOL IsPlaying() const;
BOOL IsAnimatedGIF() const;
SIZE GetSize() const;
int GetFrameCount() const;
COLORREF GetBkColor() const;
void SetBkColor(COLORREF clr);

// draws the picture (starts an animation thread if needed)
// if an animation was previously stopped by Stop(),
// continues it from the last displayed frame
BOOL Draw();

// loads a picture from a file
// i.e. Load(_T("mypic.gif"));
BOOL Load(LPCTSTR szFileName);

// loads a picture from a global memory block (allocated by GlobalAlloc)
// Warning: this function DOES NOT free the global memory, pointed to by hGlobal
BOOL Load(HGLOBAL hGlobal, DWORD dwSize);

// loads a picture from a program resource
// i.e. Load(MAKEINTRESOURCE(IDR_MYPIC),_T("GIFTYPE"));
BOOL Load(LPCTSTR szResourceName,LPCTSTR szResourceType);

protected:

#ifdef GIF_TRACING
void EnumGIFBlocks();
void WriteDataOnDisk(CString szFileName, HGLOBAL hData, DWORD dwSize);
#endif // GIF_TRACING

RECT m_PaintRect;
SIZE m_PictureSize;
COLORREF m_clrBackground;
UINT m_nCurrFrame;
UINT m_nDataSize;
UINT m_nCurrOffset;
UINT m_nGlobalCTSize;
BOOL m_bIsGIF;
BOOL m_bIsPlaying;
volatile BOOL m_bExitThread;
BOOL m_bIsInitialized;
HDC m_hMemDC;

HDC m_hDispMemDC;
HBITMAP m_hDispMemBM;
HBITMAP m_hDispOldBM;

HBITMAP m_hBitmap;
HBITMAP m_hOldBitmap;
HANDLE m_hThread;
HANDLE m_hExitEvent;
IPicture * m_pPicture;
TGIFHeader * m_pGIFHeader;
unsigned char * m_pRawData;
TGIFLSDescriptor * m_pGIFLSDescriptor;
std::vector<TFrame> m_arrFrames;

void ThreadAnimation();
static UINT WINAPI _ThreadAnimation(LPVOID pParam);

int GetNextBlockLen() const;
BOOL SkipNextBlock();
BOOL SkipNextGraphicBlock();
BOOL PrepareDC(int nWidth, int nHeight);
void ResetDataPointer();
enum GIFBlockTypes GetNextBlock() const;
UINT GetSubBlocksLen(UINT nStartingOffset) const;
HGLOBAL GetNextGraphicBlock(UINT *pBlockLen, UINT *pDelay,
SIZE *pBlockSize, SIZE *pBlockOffset, UINT *pDisposal);

// Generated message map functions
//{{AFX_MSG(CPictureEx)
afx_msg void OnDestroy();
afx_msg void OnPaint();
//}}AFX_MSG

DECLARE_MESSAGE_MAP()
};



#endif // !defined(AFX_PICTUREEX_H__35FE5BEA_3B1F_47C6_9037_11138F47E5DF__INCLUDED_)

[yanw0212]

文件太了大，把你的邮箱告诉我，把代码给你！