What message should my MFC management dialog receive before I can change it?

Question

I have a custom MFC CMyDialog dialog with a custom CMyControl control added using the resource editor. The dialog box has a member variable for the control and has DDX configured.

The control accepts messages with paints and has its own paint-based handler. But I want to have the equivalent of OnInitDialog in the control, so it can safely do some initialization when creating - putting code in the constructor leads to problems.
I tried adding handlers for the WM_CREATE, WM_NCCREATE messages and adding overrides in CWnd :: Create ... but none of them work.

What should I look to know how to edit it safely?

Answer 1

MFC . WM_CREATE, , . PreSubclassWindow , . MFC WM_INITDIALOG.

Answer 2

CWnd:: Create? , (CWnd:: Create()), . .

PreSubclassWindow.

, - .

Answer 3

• WM_CREATE.
• , OnCreate ​​.
• ASSERT OnCreate
  (, , ).
• , , , .

.