XmTextSetTopCharacter - Man Page

#include <Xm/Text​.h>
void XmTextSetTopCharacter(
Widget widget,
XmTextPosition top_character);

XmTextSetTopCharacter sets the position of the text at the top of the Text widget​. If the XmNeditMode is XmMULTI_LINE_EDIT, the line of text that contains top_character is displayed at the top of the widget without the text shifting left or right​. If the edit mode is XmSINGLE_LINE_EDIT, the text moves horizontally so that top_character is the first character displayed​.

widget

Specifies the Text widget ID

top_character

Specifies the position in the text to display at the top of the widget​. This is an integer number of characters from the beginning of the text buffer​. The first character position is 0 (zero)​.

For a complete definition of Text and its associated resources, see XmText(3)​.

XmText(3)​.