support qt a 18bit display?

It is possible to control a 18 bit display with QT? The display gets his data in 3 bytes per pixel 开发者_开发问答(18bit), but only the first 6 bits per byte are evaluated for colorinformation.

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By 1st 6 bits do you mean the 6 MSBs or LSBs? That is, are the valid bits [RRRRRR--][GGGGGG--][BBBBBB--] or [--RRRRRR][--GGGGGG][--BBBBBB]?

If it the former (6 MSBs) you can just feed the display QImage::Format_RGB888 data. The LSBs will just be ignored. If it's the later, you can try QImage::Format_RGB666, which uses LSBs.