PureBasic Forums - English

Hi

I discovered this week that using #PB_Window_Invisible in OpenWindow() results in much higher speed when adding lots of controls or items to comboGadgets. In other development environments I have been use to have a redraw or repaint property that I usually set to false before doing this kind of intense changes to a form but I did not see this in Purebasic and had not realized that making the Window invisible did had the same effect.

My suggestion is to add a note in the documentation in the OpenWindow section about techniques for improving performance when adding and updating controls on a form and to mention the role of #PB_Window_Invisible in this regard.

Thanks,
Simon

Good point - it isn't necessarily obvious as to why the flag would be needed. Actually it's not going to be seen by new Users because the Form Designer does not support it.

#PB_Window_Invisible

How do make the Window "visible" again after #PB_Window_Invisible
found answer here
http://www.purebasic.fr/english/viewtop ... 37#p455537

> it isn't necessarily obvious as to why the flag would be needed

It's needed any time that you don't want your window shown;
not just for speed reasons when updating the GUI components.