How do I find out which edge the Windows Taskbar is on?

Simple. You use the SHAppBarMessage api with the ABM_GETTASKBARPOS flag, like this:

#include "shellapi.h"

APPBARDATA abd;
abd.cbSize = sizeof(abd);

SHAppBarMessage (ABM_GETTASKBARPOS, &abd);

switch (abd.uEdge)
{
case ABE_TOP:
AfxMessageBox ("Taskbar is at top");
break;

case ABE_BOTTOM:
AfxMessageBox ("Taskbar is at bottom");
break;

case ABE_LEFT:
AfxMessageBox ("Taskbar is at left");
break;

case ABE_RIGHT:
AfxMessageBox ("Taskbar is at right");
break;
}

Author : Bob Moore