/// <summary>
/// Called any time the active window changes.
/// Checks if the program belonging to the new window can be determined.
/// If it can be determined an event is sent out with the name of the window attached to it.
/// </summary>
/// <param name="hWinEventHook"></param>
/// <param name="eventType"></param>
/// <param name="hwnd"></param>
/// <param name="idObject"></param>
/// <param name="idChild"></param>
/// <param name="dwEventThread"></param>
/// <param name="dwmsEventTime"></param>
public void WinEventProc(IntPtr hWinEventHook, uint eventType, IntPtr hwnd, int idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
IntPtr Handle;
long HandleLong;
// Check if parent exists, if it does use it (meaning the active window is only a sub window)
IntPtr NewParent = GetParent(hwnd);
IntPtr OldParent = hwnd;
while (NewParent.ToInt64() > 0)
{
OldParent = NewParent;
NewParent = GetParent(OldParent);
}
Handle = OldParent;
HandleLong = hwnd.ToInt64();
if (HandleLong <= 0)
{
return;
}
string windowTitle = GetActiveWindowTitle(Handle);
if (windowTitle == null)
{
return;
}
ProgramChanged?.Invoke(this, new CustomEventArgs(windowTitle));
}
void IBMDSwitcherInputCallback.Notify(_BMDSwitcherInputEventType eventType)
{
switch (eventType)
{
case _BMDSwitcherInputEventType.bmdSwitcherInputEventTypeLongNameChanged:
NameChanged?.Invoke(this, null);
break;
case _BMDSwitcherInputEventType.bmdSwitcherInputEventTypeIsProgramTalliedChanged:
ProgramChanged?.Invoke(this, null);
break;
case _BMDSwitcherInputEventType.bmdSwitcherInputEventTypeIsPreviewTalliedChanged:
PreviewChanged?.Invoke(this, null);
break;
}
}
