Sorry wrong category before (Help with SetBkMode(TRANSPARENT))

Because I want the edit box in CMyFormView to have the same background as that of the formView (a bitmap I loaded in its background), I use SetBkMode(TRANSPARENT) in CMyFormView::OnCtlColor.
However, by doing that, I am unable to use the backspace or delete after some text has been written in the edit box. Consequently, is there any way to use SetBkMode(TRANSPARENT) as well as the backspace and delete? If so, could you please give some code or examples demonstrating such a thing?

Thanking you in advance.

A Newcomer to application design and development