home *** CD-ROM | disk | FTP | other *** search
- /*----------------------------------------------
- METAFILE.C -- Metafile Demonstration Program
- (c) Charles Petzold, 1998
- ----------------------------------------------*/
-
- #include <windows.h>
-
- LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
-
- int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
- PSTR szCmdLine, int iCmdShow)
- {
- static TCHAR szAppName [] = TEXT ("Metafile") ;
- HWND hwnd ;
- MSG msg ;
- WNDCLASS wndclass ;
-
- wndclass.style = CS_HREDRAW | CS_VREDRAW ;
- wndclass.lpfnWndProc = WndProc ;
- wndclass.cbClsExtra = 0 ;
- wndclass.cbWndExtra = 0 ;
- wndclass.hInstance = hInstance ;
- wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
- wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
- wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
- wndclass.lpszMenuName = NULL ;
- wndclass.lpszClassName = szAppName ;
-
- if (!RegisterClass (&wndclass))
- {
- MessageBox (NULL, TEXT ("This program requires Windows NT!"),
- szAppName, MB_ICONERROR) ;
- return 0 ;
- }
-
- hwnd = CreateWindow (szAppName, TEXT ("Metafile Demonstration"),
- WS_OVERLAPPEDWINDOW,
- CW_USEDEFAULT, CW_USEDEFAULT,
- CW_USEDEFAULT, CW_USEDEFAULT,
- NULL, NULL, hInstance, NULL) ;
-
- ShowWindow (hwnd, iCmdShow) ;
- UpdateWindow (hwnd) ;
-
- while (GetMessage (&msg, NULL, 0, 0))
- {
- TranslateMessage (&msg) ;
- DispatchMessage (&msg) ;
- }
- return msg.wParam ;
- }
-
- LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
- {
- static HMETAFILE hmf ;
- static int cxClient, cyClient ;
- HBRUSH hBrush ;
- HDC hdc, hdcMeta ;
- int x, y ;
- PAINTSTRUCT ps ;
-
- switch (message)
- {
- case WM_CREATE:
- hdcMeta = CreateMetaFile (NULL) ;
- hBrush = CreateSolidBrush (RGB (0, 0, 255)) ;
-
- Rectangle (hdcMeta, 0, 0, 100, 100) ;
-
- MoveToEx (hdcMeta, 0, 0, NULL) ;
- LineTo (hdcMeta, 100, 100) ;
- MoveToEx (hdcMeta, 0, 100, NULL) ;
- LineTo (hdcMeta, 100, 0) ;
-
- SelectObject (hdcMeta, hBrush) ;
- Ellipse (hdcMeta, 20, 20, 80, 80) ;
-
- hmf = CloseMetaFile (hdcMeta) ;
-
- DeleteObject (hBrush) ;
- return 0 ;
-
- case WM_SIZE:
- cxClient = LOWORD (lParam) ;
- cyClient = HIWORD (lParam) ;
- return 0 ;
-
- case WM_PAINT:
- hdc = BeginPaint (hwnd, &ps) ;
-
- SetMapMode (hdc, MM_ANISOTROPIC) ;
- SetWindowExtEx (hdc, 1000, 1000, NULL) ;
- SetViewportExtEx (hdc, cxClient, cyClient, NULL) ;
-
- for (x = 0 ; x < 10 ; x++)
- for (y = 0 ; y < 10 ; y++)
- {
- SetWindowOrgEx (hdc, -100 * x, -100 * y, NULL) ;
- PlayMetaFile (hdc, hmf) ;
- }
- EndPaint (hwnd, &ps) ;
- return 0 ;
-
- case WM_DESTROY:
- DeleteMetaFile (hmf) ;
- PostQuitMessage (0) ;
- return 0 ;
- }
- return DefWindowProc (hwnd, message, wParam, lParam) ;
- }
-