Thread: strstr on a wchar array

Hey all,

Im trying to write some code that checks if a certain process is running which uses the PROCESSENTRY32 structure. The variable szExeFile is returning a WCHAR (even though msdn says its a supposed to be a TCHAR). This is my code:

Code:

HANDLE hSnapShot=CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS,0);
	PROCESSENTRY32* processInfo=new PROCESSENTRY32;
	processInfo->dwSize=sizeof(PROCESSENTRY32W);
	while(Process32Next(hSnapShot,processInfo)!=FALSE)
	{		
	
		if((strstr(processInfo->szExeFile, "myprocess"))!=NULL)
		{		
			MessageBox(NULL, processInfo->szExeFile, _T("hi"), MB_OK);
			delete[] processInfo;
			CloseHandle(hSnapShot);			
			return true;
		}
	}	
	delete[] processInfo;
	CloseHandle(hSnapShot);
	return false;

I get an error when I compile saying

error C2665: 'strstr' : none of the 2 overloads could convert all the argument types
d:\program files\microsoft visual studio 8\vc\include\string.h(163): could be 'const char *strstr(const char *,const char *)'
d:\program files\microsoft visual studio 8\vc\include\string.h(187): or 'char *strstr(char *,const char *)'
while trying to match the argument list '(WCHAR [260], const char [8])'

I then change the strstr command to

Code:

if((strstr((char*)processInfo->szExeFile, "myprocess"))!=NULL)

it compiles fine but the strstr always returns NULL even though im 100% sure that the process myprocess is running. Therefore the (char*)processInfo-szExeFile must be returning junk values.

Any idea how to solve this?

Thanks

thanks for the reply

You are right about VS2005. The wcsstr worked perfectly. I know this is probably a dumb question but is there anyway to reconfigure VS2005 to work the same as VS6 so i dont have to keep using _T and wchar as i'm not used to it and its really slowing me down.

Thanks

what is the advantage to using unicode then? Thanks