C# Signature:

[DllImport("user32.dll")]
static extern IntPtr ChildWindowFromPointEx(IntPtr hWndParent, Point pt, uint uFlags);

VB Signature:

<DllImport("user32", CharSet:=CharSet.Ansi, SetLastError:=True, ExactSpelling:=True)> _
Public Function ChildWindowFromPointEx(ByVal hWndParent As IntPtr, ByVal P As POINTAPI, ByVal uFlags As CWPFlags) As IntPtr
End Function

User-Defined Types:

public enum ChildWindowFromPointFlags : uint
{
     CWP_ALL = 0x0000,
     CWP_SKIPINVISIBLE = 0x0001,
     CWP_SKIPDISABLED = 0x0002,
     CWP_SKIPTRANSPARENT = 0x0004
}

Notes:

None.

Tips & Tricks:

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Sample Code:

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Alternative Managed API:

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