MouseLeave property
Available for all control objects except ImageList and Thread.
Read/Write
at design time
Specifies whether the control object will receive the WM_MOUSELEAVE message when the cursor leaves the client area. It can be one of the following values:
FALSE The control object will not receive the WM_MOUSELEAVE message (default).
TRUE The control object will receive the WM_MOUSELEAVE message.
REMARKS: The message is sent to the
control object's procedure.