调用winapi

typedef void (CALLBACK *ULPRET)(UINT,LPINT);

void func1(void)
{
HINSTANCE       hLib;
ULPRET          lpfnDLLProc;
UINT            param1 = 1;
int             param2;

hLib = LoadLibrary ("dll1.dll");
if (hLib)
   {
lpfnDLLProc = (ULPRET) GetProcAddress (hLib,"DLLProc");
(*lpfnDLLProc) (param1, (LPINT)&param2);
FreeLibrary (hLib);
   }
}