qt - How do I enable HiDPI (Retina) support in a Qt4 OpenGL application? -


i using qgraphicsscene qgraphicsview, described in this document; intend overlay qt widgets on top of opengl rendered scene.

when launch dummy application modeled after tutorial above, rendered view heavily pixelated-- hidpi isn't working @ all. per this document, i've manually added:

<key>nshighresolutioncapable</key> <string>true</string>

to application's info.plist file, still no effect. (it seems supposed default true anyway, maybe that's not surprising).

beyond above, haven't found what's needed hidpi working. not using qtcreator, , qt install macports' qt4-mac. missing?

qt5 enables hidpi opengl context, not widgets , qgraphicsitems.

according this bug, support rendering widgets , qgraphicsitems on qglwidget in hidpi not yet supported; render @ standard res , resized.

qgraphicsview render in hidpi if has ordinary qwidget it. if possible achieve desired effect using qgraphicsitems without opengl, may preferable until hidpi support improved.


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