How to make the QAplication ToolTip background transparent?

[Roberrt]

I'm trying to find a way to set the background color of any tooltip of the entire qapplication to transparent.

I tried:

QPalette palette = QToolTip::palette();
//palette.setColor(QPalette::Window, QColor(0, 0, 0, 0)); 
palette.setColor(QPalette::Base, Qt::transparent);        
QToolTip::setPalette(palette);

Also:

qApp->setStyleSheet("QToolTip: { background-color: transparent; } ");

But the tooltip background is not getting transparent.
Theres something else i could try?

[JoeCFD]

@Roberrt said in How to make the QAplication ToolTip background transparent?:

background color of any tooltip

try this?

    QApplication::setStyleSheet(styleSheet);