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Point p;
if (GetCursorPos(out p))
{
//IntPtr hWnd = WindowFromPoint(p);
IntPtr hWnd = WindowFromPoint(Cursor.Position.X, Cursor.Position.Y);
SetWindowText(hWnd, "Window Found");
}
Alternative Managed API:
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VB Signature:
Imports System.Runtime.InteropServices
Module test
<DllImport("user32.dll")> _
Function WindowFromPoint(ByVal xyPoint As POINT) As Long
End Function
end module
User-Defined Types:
xPoint, yPoint
Notes:
The WindowFromPoint function retrieves a handle to the window that contains the specified point.
Known Issue
WindowFromPoint API is unable to return correct window handle under 64bit Application Process, if any body has done it..please post.
Windows7 (vs2010)
- IntPtr WindowFromPoint(POINT Point) always return 0 in both 32/64 bit process.
- IntPtr WindowFromPoint(int x, int y) works in 32-bit but fails in 64-bit process.
Tips & Tricks:
Please add some!
Sample Code:
Dim tPA As Point
Dim lhWnd As Long
tPA = Cursor.Position
' Get window handle from point
lhWnd = WindowFromPoint(tPA)
The POINT structure defines the x- and y-coordinates of a point.
9/24/2022 6:08:15 AM - -93.99.148.7
The WindowFromPoint API
8/29/2016 9:30:57 PM - -98.115.156.13
The WindowFromPoint API
8/29/2016 9:30:57 PM - -98.115.156.13
The WindowFromPoint API
8/29/2016 9:30:57 PM - -98.115.156.13
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
An IntPtr is a pointer to a memory location (unmanaged) that adapts to the platform it is running on (64-bit, etc.) UNLIKE a standard int/Integer. You should always use this type for unmanaged calls that require it, even though an int will appear to work on your development machine.
1/13/2008 4:00:13 AM - Damon Carr-72.43.165.29
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