Thread: Using .dll files

Hi all,
Im doing a project where I need to call dll files (which has the drivers for certain hardware) and drive some digital outputs on the output lines of the hardware. How do I call the dll files in a C program ? what is the syntax for that ? Please comment.

Thanx in advance

You can do this in two ways, euther by using a attached .lib/.h files(easiest), or by linking explicitly to the dll(You need to know the prototypes for the functions):

Code:

unsigned long (WINAPI *function1)(unsigned short, char*);
HINSTANCE h1;

if((h1 = LoadLibrary("dllname")) && ((FARPROC&)function1 = GetProcAddress(h1, "function1"))==NULL)
	//Success
else
	//Failure