mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-25 07:28:20 +00:00
105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
/* Copyright Massachusetts Institute of Technology 1985 */
|
|
|
|
/*
|
|
|
|
Copyright 1985, 1986, 1987 by the Massachusetts Institute of Technology
|
|
|
|
Permission to use, copy, modify, and distribute this
|
|
software and its documentation for any purpose and without
|
|
fee is hereby granted, provided that the above copyright
|
|
notice appear in all copies and that both that copyright
|
|
notice and this permission notice appear in supporting
|
|
documentation, and that the name of M.I.T. not be used in
|
|
advertising or publicity pertaining to distribution of the
|
|
software without specific, written prior permission.
|
|
M.I.T. makes no representations about the suitability of
|
|
this software for any purpose. It is provided "as is"
|
|
without express or implied warranty.
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
* XMenu: MIT Project Athena, X Window system menu package
|
|
*
|
|
* XMenuPost - Maps a given menu to the display and activates
|
|
* the menu for user selection. The user is allowed to
|
|
* specify the mouse button event mask that will be used
|
|
* to identify a selection request. When a selection
|
|
* request is received (i.e., when the specified mouse
|
|
* event occurs) the data returned will be either the
|
|
* data associated with the particular selection active
|
|
* at the time of the selection request or NULL if no
|
|
* selection was active. A menu selection is shown to
|
|
* be active by placing a highlight box around the
|
|
* selection as the mouse cursor enters its active
|
|
* region. Inactive selections will not be highlighted.
|
|
* As the mouse cursor moved from one menu pane
|
|
* to another menu pane the pane being entered is raised
|
|
* and activated and the pane being left is deactivated.
|
|
* If an error occurs NULL will be returned with the
|
|
* p_num set to POST_ERROR, s_num set to
|
|
* NO_SELECTION and _XMErrorCode set to an
|
|
* appropriate value.
|
|
* Every time the routine returns successfully the
|
|
* p_num and s_num indices will be set to indicate
|
|
* the currently active pane and/or selection. If the
|
|
* mouse was not in a selection window at the time
|
|
* s_num will be set to NO_SELECTION.
|
|
*
|
|
* Author: Tony Della Fera, DEC
|
|
* August, 1984
|
|
*
|
|
*/
|
|
|
|
#include "XMenuInt.h"
|
|
|
|
char *
|
|
XMenuPost(register Display *display, register XMenu *menu, register int *p_num, register int *s_num, register int x_pos, register int y_pos, int event_mask)
|
|
/* Previously opened display. */
|
|
/* Menu to post. */
|
|
/* Pane number selected. */
|
|
/* Selection number selected. */
|
|
/* X coordinate of menu position. */
|
|
/* Y coordinate of menu position. */
|
|
/* Mouse button event mask. */
|
|
{
|
|
register int stat; /* Routine call return status. */
|
|
char *data; /* Return data. */
|
|
|
|
/*
|
|
* Set up initial pane and selection assumptions.
|
|
*/
|
|
|
|
/*
|
|
* Make the procedure call.
|
|
*/
|
|
stat = XMenuActivate(
|
|
display,
|
|
menu,
|
|
p_num, s_num,
|
|
x_pos, y_pos,
|
|
event_mask,
|
|
&data, 0);
|
|
|
|
/*
|
|
* Check the return value and return accordingly.
|
|
*/
|
|
switch (stat) {
|
|
case XM_FAILURE:
|
|
*p_num = POST_ERROR;
|
|
*s_num = NO_SELECTION;
|
|
return(NULL);
|
|
case XM_NO_SELECT:
|
|
case XM_IA_SELECT:
|
|
*s_num = NO_SELECTION;
|
|
return(NULL);
|
|
case XM_SUCCESS:
|
|
default:
|
|
return(data);
|
|
}
|
|
}
|
|
|