its alignment.
Button.setAlignment
void setAlignment(float xalign, float yalign)Sets the alignment of the child. This property has no effect unless the child is a #GtkMisc or a #GtkAlignment.
Parameters
xalign | the horizontal position of the child, 0.0 is left aligned, 1.0 is right aligned |
yalign | the vertical position of the child, 0.0 is top aligned, 1.0 is bottom aligned |
Deprecated
Access the child widget directly if you need to control