Thread: viahm.dll @ VIAHMGetTsens1Reg problems

Code:

#define _WIN32_WINNT   0x0500
#define WINVER	       0x0500

#include <iostream.h>
#include <Windows.h>
#include <stdio.h>

typedef int (__stdcall *viaBOOL) (void);
typedef int (__stdcall *viaVAL) (void);    //<---- Something is wrong here
 
int main()
{
	HINSTANCE hLib;
	hLib = LoadLibrary("viahm.dll");
	if(hLib) {
		viaBOOL vOpen = GetProcAddress(hLib,"VIAHMOpen");
		if(vOpen()) {
			viaBOOL vClose, vInit = GetProcAddress(hLib,"VIAHMInit");
			vInit();
			viaVAL vT1Reg = GetProcAddress(hLib,"VIAHMGetTsens1Reg");
			vT1Reg();  //<---- And here too
			vClose = GetProcAddress(hLib,"VIAHMClose");
			vClose();
		}
	}
	FreeLibrary(hLib);
	return(0);
}

When I compile this I get no compiler errors, but get runtime error. I think this is related with bad data type viaVAR. I tryed (I think this is correct) something like this:

Code:

typedef void (__stdcall *viaVAL) (PDWORD);

but after that I get compiler error: "error C2440: 'initializing' : cannot convert from 'int (__stdcall *)(void)' to 'void (__stdcall *)(unsigned long *)'"
Thanks. Regards.

You can cast the return value of getprocaddress to match the function prototype of the procedure you are loading. (viaVAL) GetProcAddress(blahbluebleh);

VIAHMGetTsens1Reg isnt documented. So I dont know what parameters it takes. http://forum.ab.ru/index.php?showtop...3&#entry171973 VIAHMGetTsens1Reg : function(Val : PDWORD) : DWORD; stdcall; from here I take a guess that it return DWORD and take one unsigned long * as parameter but..... nothing is right. Dont know why.