Function 18, subfunction 3 - make active the window of the given thread.
Parameters:
- eax = 18 - function number
- ebx = 3 - subfunction number
- ecx = number of the thread slot
Returned value:
- function does not return value
Remarks:
- If correct, but nonexistent slot is given,
some window is made active.
- To find out, which window is active, use subfunction 7.