// find the name of the image for this HWND. If this fails for any reason just return null.
// Review: Getting the image name is expessive if the image name starts to be used a lot
// we could cache it in a static hash using the PID as the key.
internal static string GetImageName(NativeMethods.HWND hwnd)
{
int instance = Misc.GetWindowLong(hwnd, SafeNativeMethods.GWL_HINSTANCE);
if (instance == 0)
{
return(null);
}
StringBuilder sb = new StringBuilder(NativeMethods.MAX_PATH);
using (SafeProcessHandle processHandle = new SafeProcessHandle(hwnd))
{
if (processHandle.IsInvalid)
{
return(null);
}
if (Misc.GetModuleFileNameEx(processHandle, (IntPtr)instance, sb, NativeMethods.MAX_PATH) == 0)
{
return(null);
}
}
return(System.IO.Path.GetFileName(sb.ToString().ToLower(CultureInfo.InvariantCulture)));
}
