diff options
Diffstat (limited to 'gnu/lib/libdialog/dialog.3')
| -rw-r--r-- | gnu/lib/libdialog/dialog.3 | 28 |
1 files changed, 19 insertions, 9 deletions
diff --git a/gnu/lib/libdialog/dialog.3 b/gnu/lib/libdialog/dialog.3 index 35f4ea1..06b13a9 100644 --- a/gnu/lib/libdialog/dialog.3 +++ b/gnu/lib/libdialog/dialog.3 @@ -11,7 +11,7 @@ .\" nor does the author assume any responsibility for damages incurred with .\" its use. .\" -.\" $Id$ +.\" $Id: dialog.3,v 1.1 1995/12/23 01:10:15 jkh Exp $ .\" .Dd December 18, 1995 .Dt dialog 3 @@ -63,6 +63,7 @@ typedef struct _dmenu_item { char *\fBtitle\fR; int (*\fBchecked\fR)(struct _dmenu_item *self); int (*\fBfire\fR)(struct _dmenu_item *self); + int (*\fBselected\fR)(struct _dmenu_item *self, int is_selected); void *\fBdata\fR; char \fBlbra\fR, \fBmark\fR, \fBrbra\fR; } \fBdialogMenuItem\fR; @@ -72,20 +73,29 @@ The \fBprompt\fR and \fBtitle\fR strings are pretty much self-explanatory, and the \fBchecked\fR and \fBfire\fR function pointers provide optional display and action hooks (the \fBdata\fR variable being available for the convenience of those hooks) when more tightly coupled feedback between -a menu object and user code is required. A number of clever tricks for -simulating various kinds of item types can also be done by adjusting the -values of \fBlbra\fR (default: '['), \fB\mark\fR (default: '*' for radio -menus, 'X' for check menus) and \fBrbra\fR (default: ']') and declaring -a reasonable \fBchecked\fR hook, which should return TRUE for the `marked' state -and FALSE for `unmarked.' If an item has a \fBfire\fR hook associated -with it, it will also be called whenever the item is "toggled" in some way -and should return one of the following codes: +a menu object and user code is required. The \fBselected\fR hook also +allows you to verify whether or not a given item is selected (the cursor is +over it) for implementing pretty much any possible context-sensitive +behavior. A number of clever tricks for simulating various kinds of item +types can also be done by adjusting the values of \fBlbra\fR +(default: '['), \fB\mark\fR (default: '*' for radio menus, 'X' for check menus) +and \fBrbra\fR (default: ']') and declaring a reasonable \fBchecked\fR hook, +which should return TRUE for the `marked' state and FALSE for `unmarked.' +If an item has a \fBfire\fR hook associated with it, it will also be called +whenever the item is "toggled" in some way and should return one of the +following codes: .nf #define DITEM_SUCCESS 0 /* Successful completion */ #define DITEM_FAILURE -1 /* Failed to "fire" */ #define DITEM_LEAVE_MENU -2 /* Treat selection as "Ok" */ #define DITEM_REDRAW -3 /* Menu has changed, redraw it */ + +Two special globals also exist for putting a dialog at any arbitrary +X,Y location (the early designers rather short-sightedly made no provisions +for this). If set to zero, the default centering behavior will be in +effect. + .fi .Sh SYNOPSIS |
