h6. [[WindowManager]] h6(. » [[WindowManager SWI Calls|SWI Calls]] h6((. » [[Wimp_CreateIcon]] h6(((. » [[Wimp_CreateIcon (window syntax)|Wimp_CreateIcon (window syntax)]] h6((((. » [[Icon Block|Icon Block]] h6(((((. » [[Icon Data|Icon Data]] h6((((((. » [[Validation Strings|Validation Strings]] h6(((((((. » Validation String X h2. Validation String X h4. Use Disables the Wimp's calculation of text in a text+sprite icons on the iconbar. h4. Notes When a text+sprite icon is displayed on the icon bar, the Wimp will automatically calculate the width of the text, and hence the icon. If an icon's text may change, applications should calculate the largest width of all potential texts (using [[Wimp_TextOp 1|Wimp_TextOp 1]]) and create the icon with this width and then disable the Wimp's calculation by using this validation string command. h4. Syntax |<^. <code>X</code> | h4. Examples |<^. <code>X</code> |<^. | h4. See also * [[Validation Strings|Validation Strings]] * [[Wimp_CreateWindow|Wimp_CreateWindow]] * [[Wimp_CreateIcon|Wimp_CreateIcon]]