Does simulating click affect GetMessagePos()?

[BlackWhite]

Originally Posted by bilbo

As I showed you, GetMessagePos does not work with SendMessage, but only with PostMessage.
In fact the GetMessagePos function retrieves the cursor position for the last message retrieved by the message queue, but SendMessage does not put the message on the queue.

Best regards
bilbo

I have tried PostMessage(), but got failure.
Will you please try intercepting WM_NOTIFY in
message processing instead of WM_LBUTTON ?
Thank you.