根据窗口名关闭窗口或窗口所在进程

int KillProcessByTitle(const char* sWindowName)
{
	HWND hWindow=FindWindow(NULL,sWindowName);
	if(hWindow==NULL)
	{
		return 1;
	}
	PostMessage(hWindow,WM_CLOSE,0,0);//向窗口发送WM_CLOSE消息关闭对话框窗口,如果该对话框是进程的子对话框则要进行后面的关闭进程操作
	DWORD dwProcessID;
	HANDLE hProcess;
	if(GetWindowThreadProcessId(hWindow, &dwProcessID)==0)
	{   
		return 2;   
	}   

	hProcess=OpenProcess(PROCESS_ALL_ACCESS,FALSE,dwProcessID);   
	if(hProcess==NULL)   
	{   
		return 3;   
	}   

	if(!TerminateProcess(hProcess, 0))   
	{   
		return 4;
	}  

	return 0;
}