HWND 和HANDLE有什么区别？

ppyy 2001-10-15 12:15:19

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kingzai 2001-10-15

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一个是窗口句柄，一个是通用句柄

lpk 2001-10-15

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HWND 是一个指向结构的指针,该结构是这样定义的,该结构只有一个int型成员变量
HANDLE 是一个指向void无类型指针

turbine 2001-10-15

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hollysky 2001-10-15

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They are Void Pointers

wzaen 2001-10-15

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xiaogq 2001-10-15

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没有区别，都是无符整数

#include "bmp.h" #include "memory.h" #include "math.h" #include "stdio.h" //owner defined stack typedef struct{ HGLOBAL hMem; POINT *lpMyStack; LONG ElementsNum; LONG ptr; }MYSTACK; //macro definition #define WIDTHBYTES(i) ((i+31)/32*4) #define PI 3.1415926535 //function declaration int PASCAL WinMain (HANDLE, HANDLE, LPSTR, int); LRESULT CALLBACK MainWndProc(HWND , UINT,WPARAM, LPARAM); BOOL LoadBmpFile (HWND hWnd,char *BmpFileName); BOOL TemplateOperation(HWND hWnd, int TemplateType); BOOL Outline(HWND hWnd); BOOL Hough(HWND hWnd); BOOL LapOfGauss(HWND hWnd); BOOL Contour(HWND hWnd); BOOL IsContourP(LONG x,LONG y, char *lpPtr); BOOL SeedFill(HWND hWnd); BOOL InitStack(HWND hWnd,LONG StackLen); void DeInitStack(); BOOL MyPush(POINT p); POINT MyPop(); BOOL IsStackEmpty(); //global variable declaration BITMAPFILEHEADER bf; BITMAPINFOHEADER bi;

vc++深入了解源代码（1） #include #include LRESULT CALLBACK WinSunProc( HWND hwnd, // handle to window UINT uMsg, // message identifier WPARAM wParam, // first message parameter LPARAM lParam // second message parameter ); int WINAPI WinMain( HINSTANCE hInstance, // handle to current instance HINSTANCE hPrevInstance, // handle to previous instance LPSTR lpCmdLine, // command line int nCmdShow // show state ) { WNDCLASS wndcls; wndcls.cbClsExtra=0; wndcls.cbWndExtra=0; wndcls.hbrBackground=(HBRUSH)GetStockObject(BLACK_BRUSH); wndcls.hCursor=LoadCursor(NULL,IDC_CROSS); wndcls.hIcon=LoadIcon(NULL,IDI_ERROR); wndcls.hInstance=hInstance; wndcls.lpfnWndProc=WinSunProc; wndcls.lpszClassName="sunxin2006"; wndcls.lpszMenuName=NULL; wndcls.style=CS_HREDRAW | CS_VREDRAW; RegisterClass(&wndcls); HWND hwnd; hwnd=CreateWindow("sunxin2006","http://www.sunxin.org",WS_OVERLAPPEDWINDOW, 0,0,600,400,NULL,NULL,hInstance,NULL); ShowWindow(hwnd,SW_SHOWNORMAL); UpdateWindow(hwnd); MSG msg; while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg); DispatchMessage(&msg); } return msg.wParam; } LRESULT CALLBACK WinSunProc( HWND hwnd, // handle to window UINT uMsg, // message identifier WPARAM wParam, // first message parameter LPARAM lParam // second message parameter ) { switch(uMsg) { case WM_CHAR: char szChar[20]; sprintf(szChar,"char code is %d",wParam); MessageBox(hwnd,szChar,"char",0); break; case WM_LBUTTONDOWN: MessageBox(hwnd,"mouse clicked","message",0); HDC hdc; hdc=GetDC(hwnd); TextOut(hdc,0,50,"程序员之家",strlen("程序员之家")); //ReleaseDC(hwnd,hdc); break; case WM_PAINT: HDC hDC; PAINTSTRUCT ps; hDC=BeginPaint(hwnd,&ps); TextOut(hDC,0,0,"http://www.sunxin.org",strlen("http://www.sunxin.org")); EndPaint(hwnd,&ps); break; case WM_CLOSE: if(IDYES==MessageBox(hwnd,"是否真的结束？","message",MB_YESNO)) { DestroyWindow(hwnd); } break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd,uMsg,wParam,lParam); } return 0; }

#include "stdafx.h" #include #include #include "resource.h" #include "MainDlg.h" #include "mmsystem.h" #include "commdlg.h" #include "WINUSER.H" #include #include #include #include int flagpause=1,flagdel=1; int msccycle=3,mscrand=0; int vol; int curSel=-2; TCHAR musiclive[256]=""; long msclvtime=0; LPRECT rectLarge=new RECT; LPRECT rectSmall=new RECT; long s;//播放时间 BOOL WINAPI Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch(uMsg) { HANDLE_MSG(hWnd, WM_INITDIALOG, Main_OnInitDialog); HANDLE_MSG(hWnd, WM_COMMAND, Main_OnCommand); HANDLE_MSG(hWnd,WM_CLOSE, Main_OnClose); } return FALSE; } void CALLBACK MyTimerProc(HWND hwnd, UINT message, UINT iTimerID, DWORD dwTime) { TCHAR strTime[256]; if (flagpause==0) { s=s+1; if (s==msclvtime) { switch (msccycle) { case 0: stop(hwnd); break; case 1: next(hwnd); if (curSel==0) { stop(hwnd); SetDlgItemText(hwnd,IDC_EDITLENGTH,""); SetDlgItemText(hwnd,IDC_EDITRUN,""); SetDlgItemText(hwnd,IDC_EDITMUSICLIVE,""); strcpy(musiclive,""); flagdel=1; } else { play(hwnd); } break; case 2: play(hwnd); break; case 3: next(hwnd); play(hwnd); break; } } } int mscH,mscM,mscS; mscS=s%60; mscH=(int)(s/3600); mscM=(s-mscH*3600-mscS)/60; wsprintf(strTime,"%2d:%2d:%2d",mscH,mscM,mscS);

#include "stdafx.h" #include #include #include "resource.h" #include "MainDlg.h" BOOL WINAPI Main_Proc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { switch(uMsg) { HANDLE_MSG(hWnd, WM_INITDIALOG, Main_OnInitDialog); HANDLE_MSG(hWnd, WM_COMMAND, Main_OnCommand); HANDLE_MSG(hWnd,WM_CLOSE, Main_OnClose); } return FALSE; } void CALLBACK Time(HWND hwnd,UINT message,UINT iTimerID,DWORD dwTime) { SYSTEMTIME iTime; GetLocalTime(&iTime); TCHAR time[256]; wsprintf(time,"%d年%d月%d日 %d:%d:%d",iTime.wYear,iTime.wMonth,iTime.wDay,iTime.wHour,iTime.wMinute,iTime.wSecond); SetDlgItemText(hwnd,IDC_TIME,time); } void CALLBACK doTime(HWND hwnd,UINT message,UINT iTimerID,DWORD dwTime) { SYSTEMTIME iTime; GetLocalTime(&iTime); TCHAR time[256]; wsprintf(time,"%d年%d月%d日 %d:%d:%d",iTime.wYear,iTime.wMonth,iTime.wDay,iTime.wHour,iTime.wMinute,iTime.wSecond); SetDlgItemText(hwnd,IDC_TIME,time); TCHAR H[100],MIN[100],S[100]; GetDlgItemText(hwnd,IDC_H,H,sizeof(H)); GetDlgItemText(hwnd,IDC_MIN,MIN,sizeof(MIN)); GetDlgItemText(hwnd,IDC_S,S,sizeof(S)); int hour=atoi(H); int minute=atoi(MIN);

调试工具windbg的扩展插件，可以查看进程中的所有窗口信息，可以结合windbg的命令使用：!hwnd * 函数： hwnd * 功能：显示被调试进程中的窗口信息 * 参数： hwnd [-h] [Handle [ UMFlags [TypeName] ] ] * Handle 窗口句柄 * 如果Handle为0，则显示进程中的所有窗口信息 * UMFlags 显示参数，如果是0，则显示最基本参数 * Bit 0 (0x1) 显示General Properties * Bit 1 (0x2) 显示窗口样式 * Bit 2 (0x4) 显示相关窗口 * Bit 3 (0x8) 显示Class信息 * -h 窗口边框高亮 * TypeName 窗口类型

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