'\" t
.\"***************************************************************************
-.\" Copyright (c) 1998-2003,2005 Free Software Foundation, Inc. *
+.\" Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. *
.\" *
.\" Permission is hereby granted, free of charge, to any person obtaining a *
.\" copy of this software and associated documentation files (the *
.\" authorization. *
.\"***************************************************************************
.\"
-.\" $Id: curs_mouse.3x,v 1.28 2005/05/15 16:18:19 tom Exp $
+.\" $Id: curs_mouse.3x,v 1.38 2010/12/04 18:38:55 tom Exp $
.TH curs_mouse 3X ""
.na
.hy 0
.SH NAME
+\fBhas_mouse\fR,
\fBgetmouse\fR, \fBungetmouse\fR,
\fBmousemask\fR, \fBwenclose\fR,
\fBmouse_trafo\fR, \fBwmouse_trafo\fR,
-\fBmouseinterval\fR - mouse interface through curses
+\fBmouseinterval\fR \- mouse interface through curses
.ad
.hy
.SH SYNOPSIS
MEVENT;\fR
.fi
.br
+\fBbool has_mouse(void);\fR
+.br
\fBint getmouse(MEVENT *event);\fR
.br
\fBint ungetmouse(MEVENT *event);\fR
coordinates.
The returned state mask will have exactly one bit set to
indicate the event type.
+The corresponding data in the queue is marked invalid.
+A subsequent call to \fBgetmouse\fP will retrieve the next older
+item from the queue.
.PP
The \fBungetmouse\fR function behaves analogously to \fBungetch\fR.
It pushes
It is useful for determining what subset of
the screen windows enclose the location of a mouse event.
.PP
-The \fBwmouse_trafo\fR function transforms a given pair of coordinates from
-stdscr-relative coordinates to screen-relative coordinates or vice versa.
+The \fBwmouse_trafo\fR function transforms a given pair of coordinates
+from stdscr-relative coordinates
+to coordinates relative to the given window or vice versa.
Please remember, that stdscr-relative coordinates are not always identical
-to screen-relative coordinates due to the mechanism to reserve lines on top
-or bottom of the screen for other purposes (ripoff() call, see also slk_...
-functions).
+to window-relative coordinates due to the mechanism to reserve lines on top
+or bottom of the screen for other purposes
+(see the \fBripoffline()\fP and \fBslk_init\fR calls, for example).
If the parameter \fBto_screen\fR is \fBTRUE\fR, the pointers
-\fBpY, pX\fR must reference the coordinates of a location inside the window
-\fBwin\fR.
-They are converted to screen-relative coordinates and returned
+\fBpY, pX\fR must reference the coordinates of a location
+inside the window \fBwin\fR.
+They are converted to window-relative coordinates and returned
through the pointers.
If the conversion was successful, the function returns \fBTRUE\fR.
If one of the parameters was NULL or the location is
not inside the window, \fBFALSE\fR is returned.
If \fBto_screen\fR is
-\fBFALSE\fR, the pointers \fBpY, pX\fR must reference screen-relative
+\fBFALSE\fR, the pointers \fBpY, pX\fR must reference window-relative
coordinates.
They are converted to stdscr-relative coordinates if the
window \fBwin\fR encloses this point.
are only replaced by the converted coordinates if the transformation was
successful.
.PP
+The \fBmouse_trafo\fR function performs the same translation
+as \fBwmouse_trafo\fR,
+using stdscr for \fBwin\fR.
+.PP
The \fBmouseinterval\fR function sets the maximum time (in thousands of a
second) that can elapse between press and release events for them to
be recognized as a click.
Use \fBmouseinterval(0)\fR to disable click resolution.
This function returns the previous interval value.
-Use \fBmouseinterval(-1)\fR to obtain the interval without altering it.
+Use \fBmouseinterval(\-1)\fR to obtain the interval without altering it.
The default is one sixth of a second.
.PP
+The \fBhas_mouse\fP function returns TRUE if the mouse driver has been
+successfully initialized.
+.PP
Note that mouse events will be ignored when input is in cooked mode, and will
cause an error beep when cooked mode is being simulated in a window by a
function such as \fBgetstr\fR that expects a linefeed for input-loop
returns an error.
If no mouse driver was initialized, or
if the mask parameter is zero,
+it also returns an error if no more events remain in the queue.
.TP 5
\fBungetmouse\fP
returns an error if the FIFO is full.
xterm's built-in mouse-tracking API or
platform-specific drivers including
.RS
-Alessandro Rubini's gpm server.
+Alessandro Rubini's gpm server
.br
FreeBSD sysmouse
.br
.RE
If you are using an unsupported configuration,
mouse events will not be visible to
-\fBncurses\fR(3X) (and the \fBwmousemask\fR function will always
+\fBncurses\fR(3X) (and the \fBmousemask\fR function will always
return \fB0\fR).
.PP
If the terminfo entry contains a \fBXM\fR string,
3D-mice/trackballs/power gloves.
.SH BUGS
Mouse events under xterm will not in fact be ignored during cooked mode,
-if they have been enabled by \fBwmousemask\fR.
+if they have been enabled by \fBmousemask\fR.
Instead, the xterm mouse
report sequence will appear in the string read.
.PP
Mouse events under xterm will not be detected correctly in a window with
its keypad bit off, since they are interpreted as a variety of function key.
-Your terminfo description must have \fBkmous\fR set to "\\E[M" (the beginning
-of the response from xterm for mouse clicks).
+Your terminfo description should have \fBkmous\fR set to "\\E[M"
+(the beginning of the response from xterm for mouse clicks).
+Other values for \fBkmous\fR are permitted,
+but under the same assumption,
+i.e., it is the beginning of the response.
.PP
Because there are no standard terminal responses that would serve to identify
terminals which support the xterm mouse protocol, \fBncurses\fR assumes that
or \fBkmous\fR is defined in
the terminal description, then the terminal may send mouse events.
.SH SEE ALSO
-\fBcurses\fR(3X).
-.\"#
-.\"# The following sets edit modes for GNU EMACS
-.\"# Local Variables:
-.\"# mode:nroff
-.\"# fill-column:79
-.\"# End:
+\fBcurses\fR(3X),
+\fBcurs_kernel\fR(3X),
+\fBcurs_slk\fR(3X),
+\fBcurs_variables\fR(3X).
projects / ncurses.git / blobdiff