TheWindowEx.ChildWindowFromPointEx function determines which, if any, of the child windows belonging to the specified parent window contains the specified point. The function can ignore invisible, disabled, and transparent child windows.

number WindowEx.ChildWindowFromPointEx(

number hWnd, --handle to parent window
number XCoord, --X Coordinate Of The Point
number YCoord, --Y Coordinate Of The Point.
string uFlags --skipping flags
);

Parameters

hWnd

Specifies handle to parent window

XCoord

Specifies X Coordinate Of The Point

YCoord

Specifies Y Coordinate Of The Point

uFlags

Specifies which child windows to skip. This parameter can be a combination of the following values:
For Example : CWP_SKIPINVISIBLE .."|"..CWP_SKIPTRANSPARENT

CWP_ALL

Do not skip any child windows

CWP_SKIPINVISIBLE

Skip invisible child windows

CWP_SKIPDISABLED

Skip disabled child windows

CWP_SKIPTRANSPARENT

Skip transparent child windows

Return Values

If the function succeeds, the return value is the handle to the first child window that contains the point and meets the criteria specified by uFlags. If the point is within the parent window but not within any child window that meets the criteria, the return value is the handle to the parent window. If the point lies outside the parent window or if the function fails, the return value is 0.

Remarks

Windows maintains an internal list that contains the handles of the child windows associated with a parent window. The order of the handles in the list depends on the Z order of the child windows. If more than one child window contains the specified point, Windows returns the handle of the first window in the list that contains the point and meets the criteria specified by uFlags.