Painting data always as 16-bit color

**Momergil** · 23rd May 2014, 20:21

Hello!

I'm developing an interface application for embedded Linux where the screen system is a 16-bit color system (5-6-5). In order to prevent unnecessary processing consumption, I need to guarantee that the Qt interface only draws on the screen using 5-6-5 color system (if it tries to do otherwise, the system will have to convert it to its 5-6-5 definition, consuming processing to do this).

How do I configure this?

I did manage to find how to guarantee that QPixmaps will be shown in 16-bit colors:

Qt Code:

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QPixmap::fromImage(QPixmap(file_name).toImage().convertToFormat(QImage::Format_RGB16))

QPixmap::fromImage(QPixmap(file_name).toImage().convertToFormat(QImage::Format_RGB16))

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but that don't include the general drawings, such as when a QWidget is shown or when some QwtPlotCurve s are drawn in a QwtPlot.

So how can I configure this at a "global scope"?

Thanks,

Momergil