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#include "copyright.h"
/* $Header: /gd/gnu/cvsroot/emacs/oldXMenu/Post.c,v 1.1 1999/10/03 19:35:10 fx Exp $ */
/* Copyright Massachusetts Institute of Technology 1985 */
/*
* 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(display, menu, p_num, s_num, x_pos, y_pos, event_mask)
register Display *display; /* Previously opened display. */
register XMenu *menu; /* Menu to post. */
register int *p_num; /* Pane number selected. */
register int *s_num; /* Selection number selected. */
register int x_pos; /* X coordinate of menu position. */
register int y_pos; /* Y coordinate of menu position. */
int event_mask; /* 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);
}
}
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