The progam I am using has multiple windows with that use the same window class. I would like to be able to individually change their background colors. However, the only way I've been successful is by changing the background color in the window class:
That changes the colors in all the windows with that class. I've read a few things that suggest the WM_ERASEBKGND message might be useful here, but I haven't found any examples of it in use. How can this be generated on demand, InvalidateRect(Handle, NULL, TRUE)? And how would it be used to change the background color?
sBrush.lbStyle = BS_SOLID;
sBrush.lbColor = RGB(0, 0, 255);
sBrush.lbHatch = 0;
hBrush = CreateBrushIndirect(&sBrush);
SetClassLong(Handle, GCL_HBRBACKGROUND, (long)hBrush);
Is there any other way to change the background color of a window without impacting any other windows? I was expecting an API call of some sort for this, considering how easy it is in VB, guess that'll teach me to try to compare VB and C functionality.