How to disable QMenu fade?

Kerndog73

A QMenu will fade out when it’s closed and I’d rather it didn’t. I tried inserting this call in various places...

QApplication::setEffectEnabled(Qt::UI_FadeMenu, false);

but that had no effect. I tried disabling all of the effects and also doing this...

QApplication::setDesktopSettingsAware(false);

but still nothing happened. Everything I’ve tried has had no effect on the end result. I’m not sure what else to do.

SGaist

Hi,

You have to give more details:

What version of Qt ?
What OS ?

Can you provide a minimal compilable example that shows that behaviour ?

Kerndog73

@SGaist I'm using Qt 5.12.3 (5.13 doesn't seem to be available on Homebrew yet) and macOS 10.14.5. Here's an example:

#include <QtWidgets/qmenubar.h>
#include <QtWidgets/qmainwindow.h>
#include <QtWidgets/qapplication.h>

void disable() {
  QApplication::setDesktopSettingsAware(false);
  QApplication::setEffectEnabled(Qt::UI_FadeMenu, false);
}

int main(int argc, char **argv) {
  disable();
  QApplication app{argc, argv};
  disable();
  QMainWindow window;
  disable();
  QMenuBar menubar{&window};
  disable();
  menubar.setNativeMenuBar(false);
  QMenu *file = menubar.addMenu("File");
  file->setStyleSheet("border: none; outline: none");
  disable();
  file->addAction("Open");
  file->addAction("Save");
  window.show();
  disable();
  return app.exec();
}

Along with the fade, there's also this really annoying black border that I can't seem to remove with stylesheets. The above stylesheet just removes the rounded corners. When I add my own border, the black border appears around my own border. Removing the border is probably more important to me than the fade. The border also appears around tooltips.