Create new an event, help me?

[dungsivn]

Hi everyone, I want to create a new events receive mouse release events on the border of the QMainwindow but I don't know the code so that It( the event) can be called automatically. Untill now, the "mouse release event" can only receive the event inside the widget. After releasing that mouse event, I will repaint 60.000 components inside that window. Could you tell me the way to create or add a new event and It will be called automatically like "resizeEvent(...)" or "mouseReleaseEvent(...)"?
Thanks!

[wysota]

The "border" of the window is handled by the window manager and not by your application, so there is nothing really you can do here without at least digging into platform dependent API.

[dungsivn]

So, could you tell me other ways to solve my problem? Thanks!

[wysota]

But what is the problem?

[dungsivn]

I want to catch "mouseReleaseEvent" on the border of the main window to redraw the components inside the main window. During resizeEvent, I can't draw the window because it has 60.000 components. I can only draw one time after finishing resizing so that It can be faster. Thanks!

[spud]

In resizeEvent() check QApplication::mouseButtons() and only do the update if the left mouse isn't pressed.

[wysota]

I'm afraid resizeEvent will post a paintEvent by itself, so this is not a solution. I suggest optimizing the painting routine and maybe use the Graphics View framework to speed things up.