Question

Possible Duplicate:
Get Current Cursor Position

I creating the button like this:

button = CreateWindowEx(NULL,_T("Button"),NULL,
            WS_CHILD | WS_VISIBLE | BS_BITMAP | BS_NOTIFY ,
            pos.x, pos.y, BTN_SIZE, BTN_SIZE,
            hWndDlg, (HMENU)id,hIns, NULL);

I want to drag that button,can`t figure out how to get the mouse pos X,Y relatively DialogWindow?
Thank you for any help?

Answer 1

The message you received contains a POINT structure named pt. At least for any mouse-originated message, that’s the position of the mouse at the time of the message. That’s in screen coordinates, so you’ll need to use ScreenToClient or (preferably) MapWindowPoints to get coordinates relative to your dialog.