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'\" te .\" Copyright (c) 1989, AT&T. All rights reserved. .\" Portions Copyright (c) 1996, Oracle and/or its affiliates. All rights reserved. .TH menu_driver 3CURSES "31 Dec 1996" "Oracle Solaris 11.4" "Curses Library Functions" .SH NAME menu_driver \- command processor for the menus subsystem .SH SYNOPSIS .LP .nf \fBcc\fR [ \fIflag\fR... ] \fIfile\fR... \fB-lmenu\fR \fB-lcurses\fR [ \fIlibrary\fR... ] #include <menu.h> \fBint\fR \fBmenu_driver\fR(\fBMENU *\fR\fImenu\fR, \fBint\fR \fIc\fR); .fi .SH DESCRIPTION .sp .LP \fBmenu_driver()\fR is the workhorse of the \fBmenus\fR subsystem. It checks to determine whether the character \fIc\fR is a menu request or data. If \fIc\fR is a request, the menu driver executes the request and reports the result. If \fIc\fR is data (a printable \fBASCII\fR character), it enters the data into the pattern buffer and tries to find a matching item. If no match is found, the menu driver deletes the character from the pattern buffer and returns \fBE_NO_MATCH\fR. If the character is not recognized, the menu driver assumes it is an application-defined command and returns \fBE_UNKNOWN_COMMAND\fR. .sp .LP Menu driver requests: .sp .ne 2 .mk .na \fBREQ_LEFT_ITEM\fR .ad .RS 21n .rt Move left to an item. .RE .sp .ne 2 .mk .na \fBREQ_RIGHT_ITEM \fR .ad .RS 21n .rt Move right to an item .RE .sp .ne 2 .mk .na \fBREQ_UP_ITEM\fR .ad .RS 21n .rt Move up to an item. .RE .sp .ne 2 .mk .na \fBREQ_DOWN_ITEM\fR .ad .RS 21n .rt Move down to an item. .RE .sp .ne 2 .mk .na \fBREQ_SCR_ULINE\fR .ad .RS 21n .rt Scroll up a line. .RE .sp .ne 2 .mk .na \fBREQ_SCR_DLINE\fR .ad .RS 21n .rt Scroll down a line. .RE .sp .ne 2 .mk .na \fBREQ_SCR_DPAGE\fR .ad .RS 21n .rt Scroll up a page. .RE .sp .ne 2 .mk .na \fBREQ_SCR_UPAGE\fR .ad .RS 21n .rt Scroll down a page. .RE .sp .ne 2 .mk .na \fBREQ_FIRST_ITEM\fR .ad .RS 21n .rt Move to the first item. .RE .sp .ne 2 .mk .na \fBREQ_LAST_ITEM\fR .ad .RS 21n .rt Move to the last item. .RE .sp .ne 2 .mk .na \fBREQ_NEXT_ITEM\fR .ad .RS 21n .rt Move to the next item. .RE .sp .ne 2 .mk .na \fBREQ_PREV_ITEM\fR .ad .RS 21n .rt Move to the previous item. .RE .sp .ne 2 .mk .na \fBREQ_TOGGLE_ITEM\fR .ad .RS 21n .rt Select/de-select an item. .RE .sp .ne 2 .mk .na \fBREQ_CLEAR_PATTERN\fR .ad .RS 21n .rt Clear the menu pattern buffer. .RE .sp .ne 2 .mk .na \fBREQ_BACK_PATTERN\fR .ad .RS 21n .rt Delete the previous character from pattern buffer. .RE .sp .ne 2 .mk .na \fBREQ_NEXT_MATCH\fR .ad .RS 21n .rt Move the next matching item. .RE .sp .ne 2 .mk .na \fBREQ_PREV_MATCH\fR .ad .RS 21n .rt Move to the previous matching item. .RE .SH RETURN VALUES .sp .LP \fBmenu_driver()\fR returns one of the following: .sp .ne 2 .mk .na \fBE_OK\fR .ad .RS 21n .rt The routine returned successfully. .RE .sp .ne 2 .mk .na \fBE_SYSTEM_ERROR\fR .ad .RS 21n .rt System error. .RE .sp .ne 2 .mk .na \fBE_BAD_ARGUMENT\fR .ad .RS 21n .rt An incorrect argument was passed to the routine. .RE .sp .ne 2 .mk .na \fBE_BAD_STATE\fR .ad .RS 21n .rt The routine was called from an initialization or termination function. .RE .sp .ne 2 .mk .na \fBE_NOT_POSTED\fR .ad .RS 21n .rt The menu has not been posted. .RE .sp .ne 2 .mk .na \fBE_UNKNOWN_COMMAND\fR .ad .RS 21n .rt An unknown request was passed to the menu driver. .RE .sp .ne 2 .mk .na \fBE_NO_MATCH\fR .ad .RS 21n .rt The character failed to match. .RE .sp .ne 2 .mk .na \fBE_NOT_SELECTABLE\fR .ad .RS 21n .rt The item cannot be selected. .RE .sp .ne 2 .mk .na \fBE_REQUEST_DENIED\fR .ad .RS 21n .rt The menu driver could not process the request. .RE .SH ATTRIBUTES .sp .LP See \fBattributes\fR(7) for descriptions of the following attributes: .sp .TS tab( ) box; cw(2.75i) |cw(2.75i) lw(2.75i) |lw(2.75i) . ATTRIBUTE TYPE ATTRIBUTE VALUE _ MT-Level Unsafe .TE .sp .SH SEE ALSO .sp .LP \fBcurses\fR(3CURSES), \fBmenus\fR(3CURSES), \fBattributes\fR(7) .SH NOTES .sp .LP Application-defined commands should be defined relative to (greater than) \fBMAX_COMMAND\fR, the maximum value of a request listed above. .sp .LP The header \fB<menu.h>\fR automatically includes the headers \fB<eti.h>\fR and \fB<curses.h>\fR.