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The qsetfixedsize command sets the widget size, or geometry, in pixels. Once set, the widget size can not be altered interactively or programmatically, other than by a new call to qsetfixedsize. See also qresize and qadjustsize.
Use
qsetfixedesize sparingly. Geometry management is usually best left to QTcl, which takes into account the users operating system and screen resolution to create the best result.
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