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As indicated by the title.

In my program(c++ code), I create a ccGLwindow as a widget like "ccViewer".

But I want to change the background-color of the window.

where should I modify the resource code ?

I'd searched in ccGLwindow.h/.cpp , but I still have no idea so far.

I will be grateful for any help you can provide.

See the ccGLWindow::setDisplayParameters function. It takes a ccGui::ParamStruct structure as input. And you can set the 'backgroundCol' attribute of thsis structure.

To see how you can use all these together, refer to the cc2Point5DimEditor::create2DView method for instance.

Problem solved. Thanks for your help!