On Thursday 04 December 2003 22:59, Alexandre Julliard wrote:
Andrew de Quincey adq_dvb@lidskialf.net writes:
The problem is that MSG.lParam is NOT necessarily in screen coordinates (even though the comment I have removed says they are). As I can't trust the MSG.pt either, this means using GetCursorPos() to determine the mouse position in screen coordinates.
This is wrong, you have to use lParam, as the comment says. And the coordinates are always in screen coords when we are tracking the menu. Something else must be going on here.
OK, I'll keep looking. I've printed out the coordinates I get in the tracking loop. As soon as the popup menu is displayed, they are immediately "off" by the position of the menu on the top of the screen. Its fine on menus without popups.
Out of interest, why do you specifically have to use lParam? Since it is (supposed to be) in screen coordinates, surely GetCursorPos() has to return the same values?