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</PRE>
<H2>NAME</H2><PRE>
- <STRONG>getmouse</STRONG>, <STRONG>ungetmouse</STRONG>, <STRONG>mousemask</STRONG>, <STRONG>wenclose</STRONG>, <STRONG>mouse_trafo</STRONG>,
- <STRONG>wmouse_trafo</STRONG>, <STRONG>mouseinterval</STRONG> - mouse interface through
- curses
+ <STRONG>has_mouse</STRONG>, <STRONG>getmouse</STRONG>, <STRONG>ungetmouse</STRONG>, <STRONG>mousemask</STRONG>, <STRONG>wenclose</STRONG>,
+ <STRONG>mouse_trafo</STRONG>, <STRONG>wmouse_trafo</STRONG>, <STRONG>mouseinterval</STRONG> - mouse interface
+ through curses
</PRE>
<STRONG>mmask_t</STRONG> <STRONG>bstate;</STRONG> <EM>/*</EM> <EM>button</EM> <EM>state</EM> <EM>bits</EM> <EM>*/</EM>
<STRONG>}</STRONG>
<STRONG>MEVENT;</STRONG>
+ <STRONG>bool</STRONG> <STRONG>has_mouse(void);</STRONG>
<STRONG>int</STRONG> <STRONG>getmouse(MEVENT</STRONG> <STRONG>*event);</STRONG>
<STRONG>int</STRONG> <STRONG>ungetmouse(MEVENT</STRONG> <STRONG>*event);</STRONG>
<STRONG>mmask_t</STRONG> <STRONG>mousemask(mmask_t</STRONG> <STRONG>newmask,</STRONG> <STRONG>mmask_t</STRONG> <STRONG>*oldmask);</STRONG>
Here are the mouse event type masks which may be defined:
-
<EM>Name</EM> <EM>Description</EM>
---------------------------------------------------------------------
BUTTON1_PRESSED mouse button 1 down
as y and x in the event structure coordinates will be
screen-relative character-cell coordinates. The returned
state mask will have exactly one bit set to indicate the
- event type.
+ event type. The corresponding data in the queue is marked
+ invalid. A subsequent call to <STRONG>getmouse</STRONG> will retrieve the
+ next older item from the queue.
The <STRONG>ungetmouse</STRONG> function behaves analogously to <STRONG>ungetch</STRONG>.
It pushes a <STRONG>KEY_MOUSE</STRONG> event onto the input queue, and as-
screen windows enclose the location of a mouse event.
The <STRONG>wmouse_trafo</STRONG> function transforms a given pair of coor-
- dinates from stdscr-relative coordinates to screen-rela-
- tive coordinates or vice versa. Please remember, that
- stdscr-relative coordinates are not always identical to
- screen-relative coordinates due to the mechanism to re-
- serve lines on top or bottom of the screen for other pur-
- poses (ripoff() call, see also slk_... functions). If
- the parameter <STRONG>to_screen</STRONG> is <STRONG>TRUE</STRONG>, the pointers <STRONG>pY,</STRONG> <STRONG>pX</STRONG> must
- reference the coordinates of a location inside the window
- <STRONG>win</STRONG>. They are converted to screen-relative coordinates
- and returned through the pointers. If the conversion was
- successful, the function returns <STRONG>TRUE</STRONG>. If one of the pa-
- rameters was NULL or the location is not inside the win-
- dow, <STRONG>FALSE</STRONG> is returned. If <STRONG>to_screen</STRONG> is <STRONG>FALSE</STRONG>, the point-
- ers <STRONG>pY,</STRONG> <STRONG>pX</STRONG> must reference screen-relative coordinates.
- They are converted to stdscr-relative coordinates if the
- window <STRONG>win</STRONG> encloses this point. In this case the function
- returns <STRONG>TRUE</STRONG>. If one of the parameters is NULL or the
- point is not inside the window, <STRONG>FALSE</STRONG> is returned. Please
- notice, that the referenced coordinates are only replaced
- by the converted coordinates if the transformation was
- successful.
+ dinates from stdscr-relative coordinates to coordinates
+ relative to the given window or vice versa. Please remem-
+ ber, that stdscr-relative coordinates are not always iden-
+ tical to window-relative coordinates due to the mechanism
+ to reserve lines on top or bottom of the screen for other
+ purposes (see the <STRONG>ripoffline()</STRONG> and <STRONG>slk_init</STRONG> calls, for ex-
+ ample). If the parameter <STRONG>to_screen</STRONG> is <STRONG>TRUE</STRONG>, the pointers
+ <STRONG>pY,</STRONG> <STRONG>pX</STRONG> must reference the coordinates of a location inside
+ the window <STRONG>win</STRONG>. They are converted to window-relative co-
+ ordinates and returned through the pointers. If the con-
+ version was successful, the function returns <STRONG>TRUE</STRONG>. If one
+ of the parameters was NULL or the location is not inside
+ the window, <STRONG>FALSE</STRONG> is returned. If <STRONG>to_screen</STRONG> is <STRONG>FALSE</STRONG>, the
+ pointers <STRONG>pY,</STRONG> <STRONG>pX</STRONG> must reference window-relative coordi-
+ nates. They are converted to stdscr-relative coordinates
+ if the window <STRONG>win</STRONG> encloses this point. In this case the
+ function returns <STRONG>TRUE</STRONG>. If one of the parameters is NULL
+ or the point is not inside the window, <STRONG>FALSE</STRONG> is returned.
+ Please notice, that the referenced coordinates are only
+ replaced by the converted coordinates if the transforma-
+ tion was successful.
+
+ The <STRONG>mouse_trafo</STRONG> function performs the same translation as
+ <STRONG>wmouse_trafo</STRONG>, using stdscr for <STRONG>win</STRONG>.
The <STRONG>mouseinterval</STRONG> function sets the maximum time (in thou-
- sands of a second) that can elapse between press and re-
- lease events for them to be recognized as a click. Use
- <STRONG>mouseinterval(0)</STRONG> to disable click resolution. This func-
+ sands of a second) that can elapse between press and re-
+ lease events for them to be recognized as a click. Use
+ <STRONG>mouseinterval(0)</STRONG> to disable click resolution. This func-
tion returns the previous interval value. Use <STRONG>mouseinter-</STRONG>
- <STRONG>val(-1)</STRONG> to obtain the interval without altering it. The
+ <STRONG>val(-1)</STRONG> to obtain the interval without altering it. The
default is one sixth of a second.
+ The <STRONG>has_mouse</STRONG> function returns TRUE if the mouse driver
+ has been successfully initialized.
+
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 <STRONG>get-</STRONG>
<STRONG>getmouse</STRONG>
returns an error. If no mouse driver was ini-
- tialized, or if the mask parameter is zero,
+ tialized, or if the mask parameter is zero, it
+ also returns an error if no more events remain
+ in the queue.
<STRONG>ungetmouse</STRONG>
returns an error if the FIFO is full.
Under <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, these calls are implemented using ei-
ther xterm's built-in mouse-tracking API or platform-spe-
cific drivers including
- Alessandro Rubini's gpm server.
+ Alessandro Rubini's gpm server
FreeBSD sysmouse
OS/2 EMX
If you are using an unsupported configuration, mouse
Mouse events under xterm will not be detected correctly in
a window with its keypad bit off, since they are inter-
preted as a variety of function key. Your terminfo de-
- scription must have <STRONG>kmous</STRONG> set to "\E[M" (the beginning of
- the response from xterm for mouse clicks).
+ scription should have <STRONG>kmous</STRONG> set to "\E[M" (the beginning
+ of the response from xterm for mouse clicks). Other val-
+ ues for <STRONG>kmous</STRONG> are permitted, but under the same assump-
+ tion, i.e., it is the beginning of the response.
Because there are no standard terminal responses that
would serve to identify terminals which support the xterm
</PRE>
<H2>SEE ALSO</H2><PRE>
- <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>.
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>, <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>, <STRONG>curs_vari-</STRONG>
+ <STRONG><A HREF="curs_variables.3x.html">ables(3x)</A></STRONG>.
projects / ncurses.git / blobdiff