enhmetafile.c

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#include <windows.h>
#include <stdio.h>
#include <string.h>
 
//HFONT tf;
HENHMETAFILE EnhMetafile;
SIZE EnhMetafileSize;
LRESULT WINAPI MainWndProc(HWND, UINT, WPARAM, LPARAM);
 
int WINAPI
WinMain(HINSTANCE hInstance,
    HINSTANCE hPrevInstance,
    LPSTR lpszCmdLine,
    int nCmdShow)
{
  WNDCLASS wc;
  MSG msg;
  HWND hWnd;
  ENHMETAHEADER emh;
 
  EnhMetafile = GetEnhMetaFile("test.emf");
  if(!EnhMetafile)
  {
    fprintf(stderr, "GetEnhMetaFile failed (last error 0x%lX)\n",
        GetLastError());
    return(1);
  }
  GetEnhMetaFileHeader(EnhMetafile, sizeof(ENHMETAHEADER), &emh);
  EnhMetafileSize.cx = emh.rclBounds.right - emh.rclBounds.left;
  EnhMetafileSize.cy = emh.rclBounds.bottom - emh.rclBounds.top;
 
  wc.lpszClassName = "EnhMetaFileClass";
  wc.lpfnWndProc = MainWndProc;
  wc.style = CS_VREDRAW | CS_HREDRAW;
  wc.hInstance = hInstance;
  wc.hIcon = LoadIcon(NULL, (LPCTSTR)IDI_APPLICATION);
  wc.hCursor = LoadCursor(NULL, (LPCTSTR)IDC_ARROW);
  wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
  wc.lpszMenuName = NULL;
  wc.cbClsExtra = 0;
  wc.cbWndExtra = 0;
  if (RegisterClass(&wc) == 0)
    {
      DeleteEnhMetaFile(EnhMetafile);
      fprintf(stderr, "RegisterClass failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
  hWnd = CreateWindow("EnhMetaFileClass",
              "Enhanced Metafile test",
              WS_OVERLAPPEDWINDOW,
              0,
              0,
              EnhMetafileSize.cx + (2 * GetSystemMetrics(SM_CXSIZEFRAME)) + 2,
              EnhMetafileSize.cy + (2 * GetSystemMetrics(SM_CYSIZEFRAME)) + GetSystemMetrics(SM_CYCAPTION) + 2,
              NULL,
              NULL,
              hInstance,
              NULL);
  if (hWnd == NULL)
    {
      DeleteEnhMetaFile(EnhMetafile);
      fprintf(stderr, "CreateWindow failed (last error 0x%lX)\n",
          GetLastError());
      return(1);
    }
 
    //tf = CreateFontA(14, 0, 0, TA_BASELINE, FW_NORMAL, FALSE, FALSE, FALSE,
    //  ANSI_CHARSET, OUT_DEFAULT_PRECIS, CLIP_DEFAULT_PRECIS,
    //  DEFAULT_QUALITY, FIXED_PITCH|FF_DONTCARE, "Timmons");
 
  ShowWindow(hWnd, nCmdShow);
 
  while(GetMessage(&msg, NULL, 0, 0))
  {
    TranslateMessage(&msg);
    DispatchMessage(&msg);
  }
 
  DeleteEnhMetaFile(EnhMetafile);
 
  //DeleteObject(tf);
  UnregisterClass("EnhMetaFileClass", hInstance);
 
  return msg.wParam;
}
 
LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch(msg)
    {
 
    case WM_PAINT:
    {
      PAINTSTRUCT ps;
      RECT rc;
      HDC hDC;
      int bk;
 
      GetClientRect(hWnd, &rc);
      hDC = BeginPaint(hWnd, &ps);
      rc.left = (rc.right / 2) - (EnhMetafileSize.cx / 2);
      rc.top = (rc.bottom / 2) - (EnhMetafileSize.cy / 2);
      rc.right = rc.left + EnhMetafileSize.cx;
      rc.bottom = rc.top + EnhMetafileSize.cy;
      bk = SetBkMode(hDC, TRANSPARENT);
      Rectangle(hDC, rc.left - 1, rc.top - 1, rc.right + 1, rc.bottom + 1);
      SetBkMode(hDC, bk);
      PlayEnhMetaFile(hDC, EnhMetafile, &rc);
      EndPaint(hWnd, &ps);
      break;
    }
 
    case WM_DESTROY:
      PostQuitMessage(0);
      break;
 
    default:
      return DefWindowProc(hWnd, msg, wParam, lParam);
    }
    return 0;
}