How to set background color of window after I have registered it?

Question

I am not using a dialog, I\'m using my own custom class which I have registered and then used the CreateWindow call to create it, I have preset the background c

Answer 1

You may try the following:

HBRUSH brush = CreateSolidBrush(RGB(0, 0, 255));
SetClassLongPtr(hwnd, GCLP_HBRBACKGROUND, (LONG_PTR)brush);