Update caption in a thread

Hi,

I tried to call CXTPControlButton::SetCaption from a thread other than the main UI thread. It works. But I find the button does not paint itself until I force it repaint, eg min/max it. Any suggestion?

Best

Jeff

I am using 9.7 . Adding DelayLayoutParent() does not help.

This is how my program works. I have the MainFrame and View, in the view, I upgrade some XTP control's caption. At first they are all in the same thread and no program with it. In a later version, I change the view to run in a new thread, still updating the XTP control in the view, then I got the problem, the control won't update until I force the mainframe to redraw.

I found another problem. It seems when my mouse is inside the UI of my View( in a separate thread than mainfram), the mainframe control's OnUpdateUI handler is not called. Only when the mouse move over some part of the mainframe, the handler is called and the control is updated.

These all problems because Frame and View must be in same thread. Try to remake it.

I finally get workaround of this problem.

In the view's thread's OnIdle handler, I post a message to the main thread to ask the mainthread to call its OnIdle handler. Then everything works.

I don't know any side effect of this workaround. Any feedback is appreciated.

No. I added a mouse hook in the view thread and post another message to the frame's thread in OnLbuttonDown and OnRbuttonDown. In the mainframe's handler I call SendTrackLost() .

Please advise if you think my solution will cause problem or you have better solutions.

Thanks