Retrieving mouse coordinates within a client window...

[a4andy]

Hi,

This has got me pulling my hair out, all I want to do is get the cursor position within a client window in the same units as the window coordinates.

If I use;

Private Declare Function GetClientRect Lib "user32" (ByVal hwnd As Integer, ByRef lpRect As RECT) As Integer

to get the coordinates of the client window and;

Private Structure RECT
        Dim Left As Long
        Dim Top As Long
        Dim Right As Long
        Dim Bottom As Long
    End Structure

to store them, then;

Dim CR as RECT

GetClientRect(m_LastHwnd, CR)

works fine. Now when I click in the client window, I can't work out how to retrieve the cursor postion relative to the client window in the same units as the client window.

I'm sure it can't be too hard, I'm just having trouble searching for it since most of the keywords one would use are rather common and return hundreds if not thousands of entries.

Would appreciate any ideas or tips and am using VB.Net 2005.

TIA

Andy