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The text command creates a new window (given by the pathName argument) and makes it into a text widget. Additional options, described above, may be specified on the command line or in the option database to configure aspects of the text such as its default background color and relief. The text command returns the path name of the new window.
A text widget displays one or more lines of text and allows that text to be edited. Text widgets support three different kinds of annotations on the text, called tags, marks, and windows. Tags allow different portions of the text to be displayed with different fonts and colors. In addition, Tcl commands can be associated with tags so that commands are invoked when particular actions such as keystrokes and mouse button presses occur in particular ranges of the text. See TAGS below for more details.
The second form of annotation consists of marks, which are floating markers in the text. Marks are used to keep track of various interesting positions in the text as it is edited. See MARKS below for more details.
The third form of annotation allows arbitrary windows to be displayed in the text widget. See WINDOWS below for more details.
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