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- * @Id: curs_mouse.3x,v 1.30 2006/12/30 23:43:34 tom Exp @
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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>typedef</STRONG> <STRONG>unsigned</STRONG> <STRONG>long</STRONG> <STRONG>mmask_t;</STRONG>
- typedef struct
- {
- short id; <EM>/*</EM> <EM>ID</EM> <EM>to</EM> <EM>distinguish</EM> <EM>multiple</EM> <EM>devices</EM> <EM>*/</EM>
+ <STRONG>typedef</STRONG> <STRONG>struct</STRONG> <STRONG>{</STRONG>
+ <STRONG>short</STRONG> <STRONG>id;</STRONG> <EM>/*</EM> <EM>ID</EM> <EM>to</EM> <EM>distinguish</EM> <EM>multiple</EM> <EM>devices</EM> <EM>*/</EM>
<STRONG>int</STRONG> <STRONG>x,</STRONG> <STRONG>y,</STRONG> <STRONG>z;</STRONG> <EM>/*</EM> <EM>event</EM> <EM>coordinates</EM> <EM>*/</EM>
<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>}</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
BUTTON2_DOUBLE_CLICKED mouse button 2 double clicked
BUTTON2_TRIPLE_CLICKED mouse button 2 triple clicked
---------------------------------------------------------------------
-
BUTTON3_PRESSED mouse button 3 down
+
BUTTON3_RELEASED mouse button 3 up
BUTTON3_CLICKED mouse button 3 clicked
BUTTON3_DOUBLE_CLICKED mouse button 3 double clicked
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-
<STRONG>val(-1)</STRONG> to obtain the interval without altering it. The
default is one sixth of a second.
- Note that mouse events will be ignored when input is in
+ 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>
+ is being simulated in a window by a function such as <STRONG>get-</STRONG>
<STRONG>str</STRONG> that expects a linefeed for input-loop termination.
</PRE>
<H2>RETURN VALUE</H2><PRE>
- <STRONG>getmouse</STRONG> and <STRONG>ungetmouse</STRONG> return the integer <STRONG>ERR</STRONG> upon fail-
+ <STRONG>getmouse</STRONG> and <STRONG>ungetmouse</STRONG> return the integer <STRONG>ERR</STRONG> upon fail-
ure or <STRONG>OK</STRONG> upon successful completion.
<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.
<STRONG>mousemask</STRONG> returns the mask of reportable events.
- <STRONG>mouseinterval</STRONG> returns the previous interval value, unless
- the terminal was not initialized. In that case, it re-
+ <STRONG>mouseinterval</STRONG> returns the previous interval value, unless
+ the terminal was not initialized. In that case, it re-
turns the maximum interval value (166).
- <STRONG>wenclose</STRONG> and <STRONG>wmouse_trafo</STRONG> are boolean functions returning
+ <STRONG>wenclose</STRONG> and <STRONG>wmouse_trafo</STRONG> are boolean functions returning
<STRONG>TRUE</STRONG> or <STRONG>FALSE</STRONG> depending on their test result.
</PRE>
<H2>PORTABILITY</H2><PRE>
- These calls were designed for <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, and are not
+ These calls were designed for <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, and are not
found in SVr4 curses, 4.4BSD curses, or any other previous
version of curses.
The feature macro <STRONG>NCURSES_MOUSE_VERSION</STRONG> is provided so the
- preprocessor can be used to test whether these features
- are present. If the interface is changed, the value of
- <STRONG>NCURSES_MOUSE_VERSION</STRONG> will be incremented. These values
- for <STRONG>NCURSES_MOUSE_VERSION</STRONG> may be specified when configur-
+ preprocessor can be used to test whether these features
+ are present. If the interface is changed, the value of
+ <STRONG>NCURSES_MOUSE_VERSION</STRONG> will be incremented. These values
+ for <STRONG>NCURSES_MOUSE_VERSION</STRONG> may be specified when configur-
ing ncurses:
- 1 has definitions for reserved events. The mask
+ 1 has definitions for reserved events. The mask
uses 28 bits.
2 adds definitions for button 5, removes the defi-
- nitions for reserved events. The mask uses 29
+ nitions for reserved events. The mask uses 29
bits.
- The order of the <STRONG>MEVENT</STRONG> structure members is not guaran-
- teed. Additional fields may be added to the structure in
+ The order of the <STRONG>MEVENT</STRONG> structure members is not guaran-
+ teed. Additional fields may be added to the structure in
the future.
- 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-
+ 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
- events will not be visible to <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> (and the <STRONG>mouse-</STRONG>
+ If you are using an unsupported configuration, mouse
+ events will not be visible to <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG> (and the <STRONG>mouse-</STRONG>
<STRONG>mask</STRONG> function will always return <STRONG>0</STRONG>).
- If the terminfo entry contains a <STRONG>XM</STRONG> string, this is used
- in the xterm mouse driver to control the way the terminal
+ If the terminfo entry contains a <STRONG>XM</STRONG> string, this is used
+ in the xterm mouse driver to control the way the terminal
is initialized for mouse operation. The default, if <STRONG>XM</STRONG> is
not found, corresponds to private mode 1000 of xterm:
\E[?1000%?%p1%{1}%=%th%el%;
The z member in the event structure is not presently used.
- It is intended for use with touch screens (which may be
+ It is intended for use with touch screens (which may be
pressure-sensitive) or with 3D-mice/trackballs/power
gloves.
</PRE>
<H2>BUGS</H2><PRE>
- Mouse events under xterm will not in fact be ignored dur-
- ing cooked mode, if they have been enabled by <STRONG>mousemask</STRONG>.
- Instead, the xterm mouse report sequence will appear in
+ Mouse events under xterm will not in fact be ignored dur-
+ ing cooked mode, if they have been enabled by <STRONG>mousemask</STRONG>.
+ Instead, the xterm mouse report sequence will appear in
the string read.
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 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-
+ a window with its keypad bit off, since they are inter-
+ preted as a variety of function key. Your terminfo de-
+ 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
- mouse protocol, <STRONG>ncurses</STRONG> assumes that if your $TERM envi-
- ronment variable contains "xterm", or <STRONG>kmous</STRONG> is defined in
+ Because there are no standard terminal responses that
+ would serve to identify terminals which support the xterm
+ mouse protocol, <STRONG>ncurses</STRONG> assumes that if your $TERM envi-
+ ronment variable contains "xterm", or <STRONG>kmous</STRONG> is defined in
the terminal description, then the terminal may send mouse
events.
</PRE>
<H2>SEE ALSO</H2><PRE>
- <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><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>.
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