create a ComboBox widget and return widget name
Creates a ComboBox widget. Returns the widget name.
Specifies the callback cmd. This is called when one of two
The value changed and the widget lost focus.
The <Enter> keypress was received in the ComboBox text.
Additional callback key:
value in text field of the ComboBox.
Make the object integer columns wide. This means that
integer characters are shown.
In the graphical environment this will make the
width of the object integer * MaxCharwidth wide (where
MaxCharwidth is the width of the largest character in the current
Sets the callback cmd, called when the droplist on the
ComboBox is opened.
Additional callback keys:
value in text field of ComboBox
Sets a list of items for the ComboBox object.
Disables entry into the text field of the ComboBox widget.
Data may still be set by choosing items from the ComboBox
Makes the object display integer rows of text. If there
are more than integer rows, the object will provide a
vertical ScrollBar (to permit scrolling over the entire list). If
there are less than integer rows, only that number of
items will be shown. (The default value for integer is 6.)
Updates the interpreter variable string with the
widget value. The update happens under the same conditions that
would invoke -callback, but before -callback is
called. Setting a value into the interpreter variable
updates the ComboBox as if setting -value on the widget.
Sets the string to put in the text field in the ComboBox.
Sets the callback cmd called after text is deleted from or
inserted into the widget.