[SOLVED] QFileDialog and QT_NO_TOOLTIP

smaclennan · 05-03-2019, 07:18 PM

I want to disable the tooltips in trojita, a qt based email client.

I first did a test build stock, then tried to rebuild with -DQT_NO_TOOLTIP.

Of course, I had to ifdef out all the tooltip code... but I also got these errors:

error: 'QFileDialog' has not been declared

Every single place QFileDialog was used failed to compile. I looked at the header file and it doesn't seem to rely on tooltips.

If I add #unde QT_NO_TOOLTIP at the start of the .cpp file, then it compiles.

Why would QFileDialog need tool tips?

smaclennan · 05-04-2019, 11:48 AM

Ok, I found it. In QtCore/qfeatures.h, QT_NO_FILEDIALOG is defined if any of a huge list of QT_NO_* defines are set. And, yes, one of them is QT_NO_TOOLTIP

Why would a file dialog *require* tooltips?

smaclennan · 05-06-2019, 05:05 PM

I put a #undef QT_NO_FILEDIALOG above #include <CFileDialog> and now I seem to have file dialogs. Don't know if they will crash under certain circumstances, but we will see.