void set_alignment(double xalign
, double yalign
Sets the alignment for the widget relative to its parent. Both values
must be between 0 and 1, inclusive.
A value less than 0 will automatically be changed to
0 and a value greater than 1 will
automatically be changed to 1.
Alignment values are represented as a percentage of the parent's height
or width. For example, an x alignment of
.5 aligns the 50% of the width from
the left of the parent widget. A value of 1 aligns the
widget as far to the right as possible.
The default for both alignment values is .5.