To hide the cursor, set the form's MouseIcon property to a blank cursor image.

Private Sub cmdHideCursor_Click() frmHide.MouseIcon = Picture2.Picture End Sub

When it doesn't hide the cursor, this program sets it to a small dot.

Thanks to E C Martin

Private Sub cmdHideCursor_Click()
    frmHide.MouseIcon = Picture2.Picture
End Sub
Private Sub cmdShowCursor_Click()
    frmHide.MouseIcon = Picture1.Picture
End Sub