Quelltext /~heha/hs/Funkuhr.zip/src/pngload.c

#include "Funkuhr.h"

EXTERN_C HBITMAP pngload(PCTSTR fname) {
 HBITMAP hbm=0;
 struct{
  HINSTANCE hLib;
  int (WINAPI*Startup)(ULONG_PTR*,DWORD[],void*);
  int (WINAPI*Shutdown)(ULONG_PTR);
  int (WINAPI*CreateBitmapFromFile)(PCWSTR,void**);
  int (WINAPI*CreateHBITMAPFromBitmap)(void*,HBITMAP*,COLORREF);
 }gdip;
 static const char gdipEntries[]={
   "gdiplus.dll\0"
   "GdiplusStartup\0"
   "GdiplusShutdown\0"
   "GdipCreateBitmapFromFile\0"
   "GdipCreateHBITMAPFromBitmap\0"};
 if (dynaload((dynaprocs*)&gdip,gdipEntries)) {
  DWORD gdiplusStartupInput[4];
  ULONG_PTR gdiplusToken;
  void* bm;
#ifdef UNICODE
# define u fname
#else
  WCHAR u[MAX_PATH];
  MultiByteToWideChar(CP_ACP,0,fname,-1,u,elemof(u));
#endif
  __stosd(gdiplusStartupInput,0,4);
  gdiplusStartupInput[0]++;
  gdip.Startup(&gdiplusToken, gdiplusStartupInput, NULL);
  gdip.CreateBitmapFromFile(u,&bm);
  gdip.CreateHBITMAPFromBitmap(bm,&hbm,0);
  gdip.Shutdown(gdiplusToken);
 }
 if (gdip.hLib) FreeLibrary(gdip.hLib);
 return hbm; 
}