'''pack propagate''' ''master ?boolean?'' If ''boolean'' has a true boolean value such as '''1''' or '''on''' then propagation is enabled for ''master'', which must be a window name (see "GEOMETRY PROPAGATION" below). If ''boolean'' has a false boolean value then propagation is disabled for ''master''. In either of these cases an empty string is returned. If ''boolean'' is omitted then the command returns '''0''' or '''1''' to indicate whether propagation is currently enabled for ''master''. Propagation is enabled by default. '''GEOMETRY PROPAGATION''' The packer normally computes how large a master must be to just exactly meet the needs of its slaves, and it sets the requested width and height of the master to these dimensions. This causes geometry information to propagate up through a window hierarchy to a top-level window so that the entire sub-tree sizes itself to fit the needs of the leaf windows. However, the '''pack propagate''' command may be used to turn off propagation for one or more masters. If propagation is disabled then the packer will not set the requested width and height of the packer. This may be useful if, for example, you wish for a master window to have a fixed size that you specify. Pack propagation to the '''toplevel window is a special case''' in one respect. If you have used a wm geometry command such as wm geometry . 400x300, then propagation will seem turned off even though pack propagate . returns 1. To get propagation working again, if needed, issue a wm geometry . "". This effect is described glancingly in the wm man page. [RT] 19Feb2005 ---- See also: * [pack] * [grid propagate] ---- [TK syntax help] - [Category Command] - [Category Introspection]