How do you get the system default font size in Qt?

Question

Qt uses 9px as default font size, but users (on Linux) can change this by using qtconfig.

So, how do I get the system default font size? I read the documents, but I can not find any API.

This answer might be of some help. http://stackoverflow.com/questions/11011238/how-do-you-get-system-default-font-settings-in-qt — Jan Bodnar, Mar 02 '13 at 15:12

score 9 · Accepted Answer · answered Mar 02 '13 at 15:18

9

Get a default font QFont object and read the size from it.

answered Mar 02 '13 at 15:18

ypnos

score 4 · Answer 2 · answered Nov 24 '19 at 20:35

4

Your application default font can be obtained from QApplication::font(), which

Returns the default application font.

And you can gather a size of it using pointSize(),pointSizeF(),pixelSize(), etc.

answered Nov 24 '19 at 20:35

PolyGlot

Won't work in my case Be careful, it could be -1 in some cases =( – ntfs.hard Jan 04 '21 at 02:09

2 Answers2