Stylesheet hover and pressed effect problem in custom QAbstractButton

[SyedOsamaAhmed]

Hi,

I am working on Qt for symbian. I have developed custom checkbox which is inherited from QAbstractButton. I want to give hover and pressed effect from stylesheet but its not working.

below is my style

@QString styleSheet = QString(
"QAbstractButton { background:yellow }"
"QAbstractButton:hover{"
"background-color: qlineargradient(spread:pad, x1:0, y1:1, x2:0, y2:0, stop:0 rgba(119, 213, 247, 255), stop:1 rgba(0, 120, 174, 255));"
"}");@

Please let me know what is wrong with my code?

Thanks
Osama