How to get BITMAP data from QImage ?

I am newbie for C++ language and QT. I'm writing a program that get frames from video and process with a 3rd party SDK in MinGW compiler. I can get frames with OpenCV (cv::Mat). But SDK just read .bmp file data. So, I need a solution for convertion. How can I convert cv::Mat to BITMAP or QImage to BITMAP without gdiplus ?

Sorry for bad english.

QImage can save in bmp format, might even do that automatically if the file extension is .bmp, but you can specify the format as an additional argument.

Cheers,
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