c++ - How to remove the "default button" border? -


when have gtkbutton in gtk , default window (will activated when press enter), tiny border draw around inform user button default button. how remove border ?

i tried: default-border , default-outside-border style properties.

after hours finding this, i've discovered it:

 gtk_button_set_relief(gtk_button(button_widget), gtk_relief_half);

gtk should have gallery showing how changes button behavior.


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