How to get window's scroll bars region?

Question

I have a list control and disable the scroll bar using the following code.

InitializeFlatSB(this->m_hWnd);
FlatSB_EnableScrollBar(this->m_hWnd, SB_BOTH, ESB_DISABLE_BOTH);

The scroll bars don't disappear, they just become white, which is what I need because I want to redraw my own scroll bars on their original rectangle region. In that way, my own scroll bars won't cover the list content and I can add functionality so that the mouse wheel function will be enabled.

But now how can I get the rectangle region of the scroll bars?

Answer 1

As suggested in the comments, can you try to deduce the rectangle from GetWindowRect and GetClientRect? It seems to be a easy calculation to do subtractions and get a Non Client rectangle for the Vertical scroll bar and another for the Horizontal.