Return Window handle by it's name / title

c#, handle, title, window

Solution

Update: See Richard's Answer for a more elegant approach.

Don't forget you're declaring you `hWnd` inside the loop - which means it's only visible inside the loop. What happens if the window title doesn't exist? If you want to do it with a `for` you should declare it outside your loop, set it inside the loop then return it...

IntPtr hWnd = IntPtr.Zero;
foreach (Process pList in Process.GetProcesses())
{
    if (pList.MainWindowTitle.Contains(wName))
    {
        hWnd = pList.MainWindowHandle;
    }
}
return hWnd; //Should contain the handle but may be zero if the title doesn't match

Or in a more LINQ-y way....

IntPtr? handle = Process
    .GetProcesses()
    .SingleOrDefault(x => x.MainWindowTitle.Contains(wName))
    ?.Handle;
return handle.HasValue ? handle.Value : IntPtr.Zero

Problem

I can't solve this problem. I get an error: ``` The name 'hWnd' does not exist in the current context ``` It sounds very easy and probably is... sorry for asking so obvious questions. Here's my code: ``` public static IntPtr WinGetHandle(string wName) { foreach (Process pList in Process.GetProcesses()) { if (pList.MainWindowTitle.Contains(wName)) { IntPtr hWnd = pList.MainWindowHandle; } } return hWnd; } ``` I tried with many different ways and each fails. Thanks in advance.

Original source