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| Title | Confine the cursor within a form's client area |
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| Keywords | confine, cursor, clip, client area |
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| Categories | Tips and Tricks, API |
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Use the ClientToScreen API function to translate the form client area's position into screen coordinates. Then use the ClipCursor function to restrict the cursor to that area.
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Private Sub Check1_Click()
Dim r As RECT
Dim p As POINTAPI
If Check1.Value = vbChecked Then
p.x = 0
p.y = 0
ClientToScreen hwnd, p
r.Left = p.x
r.Top = p.y
p.x = ScaleWidth
p.y = ScaleHeight
ClientToScreen hwnd, p
r.Right = p.x
r.Bottom = p.y
MousePointer = vbHourglass
ClipCursor r
Else
MousePointer = vbDefault
ClipCursor ByVal 0& ' vbNull
End If
End Sub
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