how to change the color of the frame

hi friends,
i need some suggestion to start designing my app ..

i am having a .png image , a pixmap in my window
and this window will receive signals every time ..
according to the received signals i have to change the color on the surrounding frame layer of the pixmap .....
i attached the picture how i wantt to change the color of the border of the image ... how can i change the border color around this image ....

if you have a frame surrounding your pixmap, something like this should work:

frame->setStyleSheet("border: 2px solid myColor");

u can change the value of myColor depending upon your requirements

thanks ...
i will try placing the pixmap in centre of the frame and then i will change the stylesheet background ... right aaa ..

can any one help me how to set a pixmap centered inside the frame ..... i try stylesheet in designer .. set background image .. but it is showing in tiled fashion ....

put QLabel in your frame, set your image as pixmap to that label, and alignment Center (HCenter | VCenter), with pixmap scaling to content turned off. You can do it all in Designer.

yes, its a good solution .... thank you very much ....