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SpecTcl Tutorial - part 18

We can tab to the bitmap item of the option sheet, and fill out the desired bitmap name. You can type it, or select one of the options given in the combo box. If you select something from the combobox, the change is immediately sent to the widget. While we are typing, the text is displayed in red to indicate the bitmap name has not yet been validated. To validate the item, key either `return` or `tab`. As soon as the item is validated, the widget is configured to reflect the new value. The 'Dismiss' button gets rid of the option sheet. The 'Revert' button returns the widget to the state it was in when the option sheet was opened up. If the widget that this property sheet is for is a regular widget, the 'Default' button set this field to be the value of the template's field. If the option sheet is for a palette widget, the 'Default' button sets the field to be the default for the platform.

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