Practical Programming in Tcl & Tk, Third Edition

Horizontal and Vertical Stacking

In general, you use either horizontal or vertical stacking within a frame. If you mix sides such as left and top, the effect might not be what you expect. Instead, you should introduce more frames to pack a set of widgets into a stack of a different orientation. For example, suppose we want to put a row of buttons inside the upper frame in the examples we have given so far:

Example 23-3 A horizontal stack inside a vertical stack.

frame .one -bg white frame .two -width 100 -height 50 -bg grey50 # Create a row of buttons foreach b {alpha beta gamma} { button .one.$b -text $b pack .one.$b -side left } pack .one .two ...