No focus on a window child to CView

Asked Oct 26 '15 at 16:33

Active Oct 27 '15 at 08:38

Viewed 333 times

I've created a simple MFC MDI application. Then I've created a DLL which implements a simple window (inherited from CWnd). I want it to be a child of CView window in my application. So when the application starts and the view is created I create my window passing a handle of CView as a parent.

It works fine except for the mouse wheel issue: the focus is on the CView window (though my window covers the entire client area) and thus my window doesn't receive WM_MOUSEWHEEL messages. SetFocus() after the creation doesn't help.

Is there any correct way other than subclassing/hooking the parent to fix it? And I want it to be done in DLL.

P.S. My window is for OpenGL rendering and I want it to be as much self-sufficient as possible.

edited Oct 27 '15 at 08:38

asked Oct 26 '15 at 16:33

Roman Khvostikov

1

Does your window have the `WS_TABSTOP` [Window Style](https://msdn.microsoft.com/en-us/library/windows/desktop/ms632600.aspx)? – IInspectable Oct 26 '15 at 17:08
That was my first guess. No, it doesn't help. – Roman Khvostikov Oct 27 '15 at 08:20
so your window covers the whole client area of its parent (that is a CView)? – Robson Oct 27 '15 at 08:42
Yes, it is. I click it – Roman Khvostikov Oct 27 '15 at 10:27
I even have a "focus viewer" tool (which just renders on desktop DC a handle of current focused window). Clicking on my window doesn't change the focus (or, at least, it is not visible). I am now considering to investigate it deeper by subclassing `CView` window and watching its `WM_SETFOCUS`. Just to understand maybe it is the behaviour of MFC's MDI application windows... – Roman Khvostikov Oct 27 '15 at 10:37
Does you handle WM_NCHITTEST correctly? – xMRi Nov 12 '15 at 12:15

No focus on a window child to CView

0 Answers0