Difference between hide, close and show in qt

[mit_cruze]

What is the difference between hide,close and show of pushbutton or any widget in terms of memory?

Which is better if I don't want to use widget again?

[raven-worx]

@mit_cruze said in Difference between hide, close and show in qt:

What is the difference between hide,close and show of pushbutton or any widget in terms of memory?

in terms of memory? nothing, since it just marks it at visible/hidden.
Of course the process of painting (objects used for drawing, style, ...) in case it is visible needs resources. Actually like any other operation the application does.

Which is better if I don't want to use widget again?

when you do not need it again, you should delete it and release all resources.

[VRonin]

@raven-worx said in Difference between hide, close and show in qt:

when you do not need it again, you should delete it and release all resources.

to make it clear, this means calling deleteLater().

[mit_cruze]

thanks @raven-worx

[mit_cruze]

thanks @VRonin