[Qt-interest] how to display as a pushbutton that, when pressed, will display a pop-up calendar?

[chandrasekar wagmare]

Hi friends,
        Please any one help me how to display a widget (just like a popup
calender) as a pushButton that when pressed, will disply a pop up calender
or any thing ... i just need like this format to add to my taskbar ..

                 please help
thanks in advance
-- 
CHANDRU
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