In Windows CE, SystemParametersInfo function argument is invalid.

(The code below has been a long time, but nobody did not mentioned about it. So, I worry about whether it is a false report. )

The code below is normal except for Windows CE.

• qt-everywhere-opensource-src-4.x.x\src\gui\text\qfontengine_win.cpp(line:1260)

SystemParametersInfo(SPI_SETFONTSMOOTHINGCONTRAST, 0, (void *) 1000, 0);

Sets the contrast value used in ClearType smoothing. The pvParam parameter is the contrast value.

ref. http://msdn.microsoft.com/en-us/library/windows/desktop/ms724947(v=vs.85).aspx

However, Windows CE does not work.

To set the gamma correction value, call SystemParametersInfo with uiAction set to SPI_SETFONTSMOOTHINGCONTRAST and the pvParam parameter set to a pointer to an unsigned integer that contains the desired gamma correction value.

ref.
Windows CE 5.0: http://msdn.microsoft.com/en-us/library/ms901154.aspx
Windows CE 6.0: http://msdn.microsoft.com/en-US/library/ee489847(v=WinEmbedded.60).aspx
Windows Embedded Compact 7: http://msdn.microsoft.com/en-us/library/ee489863.aspx

Therefore, the above code should be changed as shown below.

unsigned int contrastNew = 1000;
SystemParametersInfo(SPI_SETFONTSMOOTHINGCONTRAST, 0, &contrastNew, 0);

Thanks.