First we create a test application by adding two static controls, two edit controls and a button to switch focus away from the first edit control to second edit control.
Next, we are going to create our CEdit derived class. Go to "Solution Explorer" and right-click on your MFC project and select "Class Wizard..."
If for some reason, you cannot add the function handler for WM_KILLFOCUS. You can add it manually in code. Open the CDerivedEdit.h in your editor and add this function declaration to the CDerivedEdit class.
Collection
[
|
...
]