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- /*
- * This program demonstrates the use of the function GetMetaFileBits.
- * This function returns a handle to a global memory block containing the
- * specified metafile as a collection of bits.
- */
-
- #include <windows.h>
-
- static HANDLE hWnd;
- HANDLE hMem;
-
- int PASCAL WinMain(hInstance, hPrevInstance, lpszCmdLine, cmdShow)
- HANDLE hInstance, hPrevInstance;
- LPSTR lpszCmdLine;
- int cmdShow;
- {
- static char szFuncName[] = "GetMetaFileBits()";
- char szOutBuf[40];
- HANDLE hMF;
- HANDLE hMetaDC;
-
- MessageBox(GetFocus(), (LPSTR)"Creating Memory Metafile",
- (LPSTR)"CretaeMetaFile()", MB_OK);
- hMetaDC = CreateMetaFile(NULL);
- if (hMetaDC == NULL)
- MessageBox(GetFocus(), (LPSTR)"Error in Creating Memory Metafile",
- (LPSTR)"CreateMetaFile() Error!", MB_OK | MB_ICONEXCLAMATION);
- else {
- Rectangle(hMetaDC, 10, 10, 200, 200);
- Rectangle(hMetaDC, 201, 10, 401, 200);
- LineTo(hMetaDC, 100, 250);
- Ellipse(hMetaDC, 0, 0, 100, 100);
- hMF = CloseMetaFile(hMetaDC);
- MessageBox (GetFocus(),
- (LPSTR)"Getting Handle to Metafile Bits",
- (LPSTR)szFuncName, MB_OK);
- hMem = GetMetaFileBits(hMF);
- if (hMem == NULL)
- MessageBox (GetFocus(), (LPSTR)"Error in Obtaining Metafile Bit Handle",
- (LPSTR)szFuncName, MB_OK);
- else {
- MessageBox (GetFocus(), (LPSTR)"Handle Obtained Successfully",
- (LPSTR)szFuncName, MB_OK);
- if (GlobalSize(hMem) != 0) {
- sprintf(szOutBuf, "%s%lu%s", "The Size of the Metafile is: ",
- GlobalSize(hMem), " bytes.");
- MessageBox(GetFocus(), (LPSTR)szOutBuf, (LPSTR)"GlobalSize()", MB_OK);
- }
- else
- MessageBox(GetFocus(), (LPSTR)"Error in Obtaining the Size of the Metafile",
- (LPSTR)"GlobalSize", MB_OK);
- }
- }
- return 0;
- }
-