zhuaping.rar_windows抓屏_抓屏

/******************************************************************* 程序：Bitmap 文件：Bitmap.c 功能：位图演示程序 ********************************************************************/ #include <windows.h> #include <windowsx.h> #include"resource.h" #include "抓屏程序.h" BOOL InitWindow (HINSTANCE hInstance, int nCmdShow); BOOL Initshow(HINSTANCE hInstance, int nCmdShow); LRESULT CALLBACK WinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); LRESULT CALLBACK Winshow (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam); HWND hchild,hfather; static BOOL show,zhua,save; static TCHAR FileName[128]=""; int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) { MSG msg; if (!InitWindow (hInstance, iCmdShow)) return FALSE; if (!Initshow (hInstance, iCmdShow)) return FALSE; while (GetMessage (&msg, NULL, 0, 0)) { TranslateMessage (&msg); DispatchMessage (&msg); } return msg.wParam; } static BOOL InitWindow (HINSTANCE hInstance, int iCmdShow) { static TCHAR szAppName[] = TEXT ("Bitmap"); HWND hwnd; WNDCLASS wc; wc.style = CS_VREDRAW | CS_HREDRAW; wc.lpfnWndProc = WinProc; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon (hInstance, IDI_APPLICATION); wc.hCursor = LoadCursor (NULL, IDC_CROSS); wc.hbrBackground = (HBRUSH)GetStockObject (HOLLOW_BRUSH); wc.lpszMenuName = szAppName; wc.lpszClassName = szAppName; if (!RegisterClass (&wc)) { MessageBox (NULL, TEXT ("注册窗口类失败！"), szAppName, MB_ICONERROR); return 0; } hwnd = CreateWindow (szAppName, TEXT ("全屏"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); if( !hwnd ) return FALSE; //ShowWindow( hwnd, iCmdShow ); UpdateWindow( hwnd ); return TRUE; } static BOOL Initshow (HINSTANCE hInstance, int iCmdShow) { static TCHAR szAppName[] = TEXT ("Bitmapcopy"); HWND hwnd; WNDCLASS wc; wc.style = CS_VREDRAW | CS_HREDRAW; wc.lpfnWndProc = Winshow; wc.cbClsExtra = 0; wc.cbWndExtra = 0; wc.hInstance = hInstance; wc.hIcon = LoadIcon (hInstance,MAKEINTRESOURCE(IDI_ICON1)); wc.hCursor = LoadCursor (NULL, IDC_ARROW); wc.hbrBackground = (HBRUSH)GetStockObject (WHITE_BRUSH); wc.lpszMenuName = NULL; wc.lpszClassName = szAppName; if (!RegisterClass (&wc)) { MessageBox (NULL, TEXT ("注册窗口类失败！"), szAppName, MB_ICONERROR); return 0; } hwnd = CreateWindow (szAppName, TEXT ("抓屏程序"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 500,400, NULL, NULL, hInstance, NULL); if( !hwnd ) return FALSE; ShowWindow( hwnd, iCmdShow ); UpdateWindow( hwnd ); return TRUE; } LRESULT CALLBACK WinProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { HDC hdc, hdcDest, hdc2; RECT rect; static int iShowMode ; static DWORD iROP ; static int iSelectedBitmap ; static HBITMAP hOldBitmap; BITMAP bm; static HDC hdcMem; static HBITMAP hSelectBitmap=NULL; static HBITMAP hBitmap; HBRUSH hPatternBrush=NULL, hOldBrush=NULL; static BOOL bDrawing; static int cxBeginPoint, cyBeginPoint,cxCurrPoint, cyCurrPoint; static int chang,kuan; static int OldRop; static HPEN hRedDashdotPen,hOldPen; chang=cxCurrPoint-cxBeginPoint;//长等于坐标只差，可以为负值 kuan=cyCurrPoint-cyBeginPoint; hfather=hWnd;////////////////////// switch (message) { case WM_CREATE: //创建内存设备描述表 hdc = GetDC (hWnd); hdcMem = CreateCompatibleDC (hdc); hRedDashdotPen = CreatePen (PS_DASHDOT, 1, RGB (255, 0, 0)); ReleaseDC (hWnd, hdc); return 0; case WM_LBUTTONDOWN: if (!bDrawing) SetCapture (hWnd); //设置绘图的起始、终止点 cxBeginPoint = LOWORD (lParam); cyBeginPoint = HIWORD (lParam); cxCurrPoint = LOWORD (lParam); cyCurrPoint = HIWORD (lParam); bDrawing = TRUE; return 0; case WM_LBUTTONUP: if (bDrawing) { SetCapture (NULL); bDrawing = FALSE ; hdc = GetDC (hWnd); OldRop=SetROP2 (hdc,R2_XORPEN); hOldPen = (HPEN)SelectObject (hdc, (HPEN)hRedDashdotPen); MoveToEx(hdc,cxBeginPoint,cyBeginPoint,NULL); LineTo(hdc,cxCurrPoint,cyBeginPoint); LineTo(hdc,cxCurrPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyBeginPoint); SelectObject (hdc, hOldPen); SetROP2 (hdc,OldRop); if (hSelectBitmap!=NULL) DeleteObject(hSelectBitmap); hSelectBitmap = CreateCompatibleBitmap (hdc, abs(cxCurrPoint-cxBeginPoint), abs(cyCurrPoint-cyBeginPoint)); hOldBitmap = (HBITMAP)SelectObject (hdcMem, hSelectBitmap); GetObject (hSelectBitmap, sizeof (BITMAP), &bm); StretchBlt(hdcMem,0,0,bm.bmWidth,bm.bmHeight,hdc,cxBeginPoint,cyBeginPoint,chang,kuan,SRCCOPY); SelectObject (hdcMem, hOldBitmap); SendMessage(hWnd,WM_COMMAND,0,0); ShowWindow( hWnd, SW_HIDE); ShowWindow(hchild, SW_SHOWDEFAULT); show=FALSE;zhua=FALSE; ReleaseDC (hWnd, hdc); } return 0 ; case WM_MOUSEMOVE: if (!bDrawing) return 0 ; hdc = GetDC (hWnd); OldRop=SetROP2 (hdc,R2_XORPEN); hOldPen = (HPEN)SelectObject (hdc, (HPEN)hRedDashdotPen); MoveToEx(hdc,cxBeginPoint,cyBeginPoint,NULL); LineTo(hdc,cxCurrPoint,cyBeginPoint); LineTo(hdc,cxCurrPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyBeginPoint); cxCurrPoint = LOWORD (lParam); cyCurrPoint = HIWORD (lParam); MoveToEx(hdc,cxBeginPoint,cyBeginPoint,NULL); LineTo(hdc,cxCurrPoint,cyBeginPoint); LineTo(hdc,cxCurrPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyCurrPoint); LineTo(hdc,cxBeginPoint,cyBeginPoint); SelectObject (hdc, hOldPen); //SetROP2 (hdc,OldRop); if(show){ char szShow[32]; RECT rect; rect.top=cyBeginPoint-15;rect.left=cxBeginPoint+10; rect.right=cxBeginPoint+310;rect.bottom=cyBeginPoint; SetTextColor (hdc,RGB(255,0,0)); wsprintf (szShow, "像素大小%d * %d =%d (约%d K) ", chang, kuan,chang*kuan,chang*kuan/1024); DrawText (hdc, szShow , -1, &rect, DT_LEFT); } ReleaseDC (hWnd, hdc); return 0; case WM_PAINT: if(zhua==TRUE){ hdc2=CreateDC(TEXT("DISPLAY"),NULL,NULL,NULL); hdc=GetDC(hchild); GetClientRect(hchild, &rect); StretchBlt(hdc, 0, 31,rect.right-rect.left,rect.bottom-rect.top-31, hdc2,0 ,0 ,1024,768,SRCCOPY); } return 0; case WM_COMMAND: if (hSelectBitmap==NULL) return 0; hdcDest = GetDC (hchild); //GetClientRect(hchild,&rect); hOldBitmap = (HBITMAP)SelectObject (hdcMem, hSelectBitmap); GetObject (hSelectBitmap, sizeof (BITMAP), &bm); //StretchBlt(hdcDest,0,31,rect.right ,rect.bottom,hdcMem,0,0,bm.bmWidth ,bm.bmHeight ,SRCCOPY); BitBlt(hdcDest,0,31,bm.bmWidth,bm.bmHeight,hdcMem,0,0,SRCCOPY); SelectObject (hdcMem, hOldBitmap); if(save){ WriteBmp(hSelectBitmap,FileName); } ReleaseDC (hchild,hdcDest); return 0; case WM_DESTROY: DeleteDC (hdcMem); DeleteObject (hRedDashdotPen); PostQuitMessage (0); return 0; } return DefWindowProc (hWnd, message, wParam, lParam); } LRESULT CALLBACK Winshow(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { RECT rect; HDC hdc; HWND hbutton1,hbutton2,hbutton3; PA