change pixmap of button on mouse enter

[neeraj sharma <neeraj_champion yahoo com>]

hi all,
       In my application I want to change the pixmap
of my button on mouse over .But When I wrote the code
It is calling enter and leave signal
simultaneously.more over on mouse click it is going to
all function i.e. clicked,enter,released,leave and
pressed.
Can any one tell me how to overcome this problem
                                             Neeraj

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