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mitem_current - set and get current_menu_item |
#include <menu.h> |
The function set_current_item sets the current item (the item on which the menu cursor is positioned). current_item returns a pointer to the current item in the given menu. The function set_top_row sets the top row of the menu to show the given row (the top row is initially 0, and is reset to this value whenever the O_ROWMAJOR option is toggled). The item leftmost on the given row becomes current. The function top_row returns the number of the top menu row being displayed. The function item_index returns the (zero-origin) index of item in the menu’s item pointer list. |
current_item returns NULL on error. top_row and item_index return ERR (the general curses error value) on error. set_current_item and set_top_row return one of the following: |
E_OK |
The routine succeeded. |
E_SYSTEM_ERROR |
System error occurred (see errno). |
E_BAD_ARGUMENT |
Routine detected an incorrect or out-of-range argument. |
E_BAD_STATE |
Routine was called from an initialization or termination function. |
E_NOT_CONNECTED |
No items are connected to the menu. |
curses(3X), menu(3X). |
The header file <menu.h> automatically includes the header file <curses.h>. |
These routines emulate the System V menu library. They were not supported on Version 7 or BSD versions. The SVr4 menu library documentation specifies the top_row and index_item error value as -1 (which is the value of ERR). |
Juergen Pfeifer. Manual pages and adaptation for new curses by Eric S. Raymond. |