Calling API functions using GetProcAddress

 

If you don't want to use the svlCVAPI.c/h files you can use GetProcAddress() to find the interface functions in the Coverage Validator DLL.

 

The interface functions have different names and do not use C++ name mangling, but have identical parameters to the API functions.

 

To determine the function name take any native API name, replace the leading cv with api. For example cvGetCollect() becomes apiGetCollect();

 

 

Example usage

 

typedef int (__cdecl *apiGetCollect_FUNC)();

 

 

HMODULE getValidatorModule()
{
   HMODULE   hModule;
 
   hModule = GetModuleHandle(_T("svlCoverageThreadValidatorStub6432.dll"));        // 32 bit DLL with 64 bit Coverage Validator GUI
   if (hModule == NULL)
      hModule = GetModuleHandle(_T("svlCoverageValidatorStub_x64.dll"));        // 64 bit DLL with 64 bit Coverage Validator GUI
   if (hModule == NULL)
      hModule = GetModuleHandle(_T("svlCoverageValidatorStub.dll"));                // 32 bit DLL with 32 bit Coverage Validator GUI
 
   return hModule;
}
 

HMODULE   hMod;
 
// get module, will only succeed if Coverage Validator launched this app or is injected into this app
 
hMod = getValidatorModule();
if (hMod != NULL)
{
    // CV is present, lookup the function and call it to get the data collection status
 
   apiGetCollect_FUNC   theFunc;
 
   theFunc = (apiGetCollect_FUNC)getFunctionFromValidatorModule("apiGetCollect");
   if (theFunc != NULL)
      return (*theFunc)();

}

 

 

API functions and their GetProcAddress names

 

For any API functions not listed, try looking up the name in svlCoverageValidatorStub.dll using depends.exe or PE File Browser.

 

 

 

Other exported functions

 

You may see some other functions exported from svlPerformanceValidatorStub.dll(_x64).dll.

 

These other functions are for Performance Validator's use. Using them may damage memory locations and/or crash your code. Best not to use them!