Process Snapshot error?

[mekkatorqu]

void KillProcess(string str)
{
	HANDLE hProcessSnap;
	HANDLE hProcess;
	PROCESSENTRY32 pe32;
	DWORD dwPriorityClass;

	hProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	if(hProcessSnap == INVALID_HANDLE_VALUE)
	{
		return;
	}
	
	pe32.dwSize = sizeof(PROCESSENTRY32);

	if(!Process32First(hProcessSnap, &pe32));
	{
		printError("Process32First");
		CloseHandle(hProcessSnap);
		return;
	}

	do
	{
		char tmp[64];
		wsprintf(tmp, "%s", pe32.szExeFile);
		MessageBox(hWnd, tmp, NULL, NULL);
	}
	while(Process32Next( hProcessSnap, &pe32 ));

}

it stops on

	if(!Process32First(hProcessSnap, &pe32));
	{
		printError("Process32First");
		CloseHandle(hProcessSnap);
		return;
	}

however the error output is

WARNING: Process32First failed with error 0 (The operation completed successfully)

I basically copy-pasted this code

http://msdn.microsoft.com/en-us/library/windows/desktop/ms686701(v=vs.85).aspx

edit: when I remove that check everything works fine ... is this intended? did I copy something wrong?

[modoran]

You have an extra ';' character on 'if' line, remove it.

[mekkatorqu]

ah lol, thanks!