Create_DIB_Bitmap.cpp
上传用户:dq031136
上传日期:2022-08-08
资源大小:802k
文件大小:8k
- #include <windows.h>
- #include "Create_DIB_Bitmap.h"
- #if defined (WIN32)
- #define IS_WIN32 TRUE
- #else
- #define IS_WIN32 FALSE
- #endif
- #define IS_NT IS_WIN32 && (BOOL)(GetVersion() < 0x80000000)
- #define IS_WIN32S IS_WIN32 && (BOOL)(!(IS_NT) && (LOBYTE(LOWORD(GetVersion()))<4))
- #define IS_WIN95 (BOOL)(!(IS_NT) && !(IS_WIN32S)) && IS_WIN32
- HINSTANCE hInst; // current instance
- LPCTSTR lpszAppName = "MyApp";
- LPCTSTR lpszTitle = "My Application";
- BOOL RegisterWin95( CONST WNDCLASS* lpwc );
- int APIENTRY WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance,
- LPTSTR lpCmdLine, int nCmdShow)
- {
- MSG msg;
- HWND hWnd;
- WNDCLASS wc;
- // Register the main application window class.
- //............................................
- wc.style = CS_HREDRAW | CS_VREDRAW;
- wc.lpfnWndProc = (WNDPROC)WndProc;
- wc.cbClsExtra = 0;
- wc.cbWndExtra = 0;
- wc.hInstance = hInstance;
- wc.hIcon = LoadIcon( hInstance, lpszAppName );
- wc.hCursor = LoadCursor(NULL, IDC_ARROW);
- wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
- wc.lpszMenuName = lpszAppName;
- wc.lpszClassName = lpszAppName;
- if ( IS_WIN95 )
- {
- if ( !RegisterWin95( &wc ) )
- return( FALSE );
- }
- else if ( !RegisterClass( &wc ) )
- return( FALSE );
- hInst = hInstance;
- // Create the main application window.
- //....................................
- hWnd = CreateWindow( lpszAppName,
- lpszTitle,
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, 0,
- CW_USEDEFAULT, 0,
- NULL,
- NULL,
- hInstance,
- NULL
- );
- if ( !hWnd )
- return( FALSE );
- ShowWindow( hWnd, nCmdShow );
- UpdateWindow( hWnd );
- while( GetMessage( &msg, NULL, 0, 0) )
- {
- TranslateMessage( &msg );
- DispatchMessage( &msg );
- }
- return( msg.wParam );
- }
- BOOL RegisterWin95( CONST WNDCLASS* lpwc )
- {
- WNDCLASSEX wcex;
- wcex.style = lpwc->style;
- wcex.lpfnWndProc = lpwc->lpfnWndProc;
- wcex.cbClsExtra = lpwc->cbClsExtra;
- wcex.cbWndExtra = lpwc->cbWndExtra;
- wcex.hInstance = lpwc->hInstance;
- wcex.hIcon = lpwc->hIcon;
- wcex.hCursor = lpwc->hCursor;
- wcex.hbrBackground = lpwc->hbrBackground;
- wcex.lpszMenuName = lpwc->lpszMenuName;
- wcex.lpszClassName = lpwc->lpszClassName;
- // Added elements for Windows 95.
- //...............................
- wcex.cbSize = sizeof(WNDCLASSEX);
- wcex.hIconSm = LoadImage(wcex.hInstance, lpwc->lpszClassName,
- IMAGE_ICON, 16, 16,
- LR_DEFAULTCOLOR );
-
- return RegisterClassEx( &wcex );
- }
- LRESULT CALLBACK WndProc( HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam )
- {
- switch( uMsg )
- {
- case WM_COMMAND :
- switch( LOWORD( wParam ) )
- {
- case IDM_TEST :
- {
- BITMAPINFOHEADER bi;
- BITMAPINFOHEADER* lpbi;
- HBITMAP hBitmap;
- HDC hDC, hMemDC;
- HANDLE hDIB;
- // Initialize the BITMAPINFOHEADER structure.
- //...........................................
- bi.biSize = sizeof( BITMAPINFOHEADER );
- bi.biWidth = 50;
- bi.biHeight = 50;
- bi.biPlanes = 1;
- bi.biBitCount = 4;
- bi.biCompression = BI_RGB;
- bi.biSizeImage = 0;
- bi.biXPelsPerMeter = 0;
- bi.biYPelsPerMeter = 0;
- bi.biClrUsed = 0;
- bi.biClrImportant = 0;
- hDC = GetDC( hWnd );
- // Create DIB.
- //............
- hBitmap = CreateDIBitmap( hDC, &bi, 0L, NULL,
- NULL, 0 );
- // Allocate memory for BITMAPINFO structure.
- //..........................................
- hDIB = GlobalAlloc( GHND,
- sizeof( BITMAPINFOHEADER )+
- 16 * sizeof( RGBQUAD ) );
- lpbi = (BITMAPINFOHEADER*)GlobalLock( hDIB );
- // Copy bi to top of BITMAPINFO structure.
- //........................................
- *lpbi = bi;
- // Use GetDIBits() to init bi struct data.
- //........................................
- GetDIBits( hDC, hBitmap, 0, 50, NULL,
- (LPBITMAPINFO)lpbi, DIB_RGB_COLORS );
- GlobalUnlock( hDIB );
- // Create a memory device context
- // and select the DIB into it.
- //...............................
- hMemDC = CreateCompatibleDC( hDC );
- SelectObject( hMemDC, hBitmap );
- // Paint on memory device context.
- //................................
- SelectObject( hMemDC, GetStockObject(BLACK_BRUSH));
- Rectangle( hMemDC, 0, 0, 50, 50 );
- SelectObject( hMemDC, GetStockObject(WHITE_BRUSH));
- Ellipse( hMemDC, 0, 0, 50, 50 );
- Ellipse( hMemDC, 10, 0, 40, 50 );
- Ellipse( hMemDC, 20, 0, 30, 50 );
- // Paint the bitmap on the display.
- //.................................
- BitBlt( hDC, 0, 0, 50, 50,
- hMemDC, 0, 0, SRCCOPY );
- DeleteDC( hMemDC );
- GlobalFree( hDIB );
- ReleaseDC( hWnd, hDC );
- }
- break;
- case IDM_ABOUT :
- DialogBox( hInst, "AboutBox", hWnd, (DLGPROC)About );
- break;
- case IDM_EXIT :
- DestroyWindow( hWnd );
- break;
- }
- break;
-
- case WM_DESTROY :
- PostQuitMessage(0);
- break;
- default :
- return( DefWindowProc( hWnd, uMsg, wParam, lParam ) );
- }
- return( 0L );
- }
- LRESULT CALLBACK About( HWND hDlg,
- UINT message,
- WPARAM wParam,
- LPARAM lParam)
- {
- switch (message)
- {
- case WM_INITDIALOG:
- return (TRUE);
- case WM_COMMAND:
- if ( LOWORD(wParam) == IDOK
- || LOWORD(wParam) == IDCANCEL)
- {
- EndDialog(hDlg, TRUE);
- return (TRUE);
- }
- break;
- }
- return (FALSE);
- }