In Qt C++, how can I fully disable resizing a window including the resize icon when the mouse hovers the border? -

i used: setfixedsize(size()); stop window resizing, resize arrows still appear when mouse on border of window.

is there better way disable window resizing avoid showing arrows when crossing border?

try this:

this->statusbar()->setsizegripenabled(false); 

if doesn't work, need detect widget activating qsizegrip. can installing event filter on app , try catch qsizegrip's mousemoveevent. debug parent widget.

here's example of eventfilter function use:

bool mainwindow::eventfilter(qobject *obj, qevent *event) {     if(event->type() == qevent::mousemove)     {         qsizegrip *sg = qobject_cast<qsizegrip*>(obj);         if(sg)             qdebug() << sg->parentwidget();     }     return false; } 

you catch show event well, it's you.