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-<H1>curs_mouse 3x</H1>
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+<H1 class="no-header">curs_mouse 3x 2024-02-17 ncurses 6.4 Library calls</H1>
<PRE>
-<!-- Manpage converted by man2html 3.0.1 -->
-<STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG> <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>
+<STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG> Library calls <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>
-</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
+</PRE><H2><a name="h2-NAME">NAME</a></H2><PRE>
+ <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> - get mouse events in <EM>curses</EM>
-</PRE>
-<H2>SYNOPSIS</H2><PRE>
+</PRE><H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><curses.h></STRONG>
<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>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>
- <STRONG>bool</STRONG> <STRONG>wenclose(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*win,</STRONG> <STRONG>int</STRONG> <STRONG>y,</STRONG> <STRONG>int</STRONG> <STRONG>x);</STRONG>
- <STRONG>bool</STRONG> <STRONG>mouse_trafo(int*</STRONG> <STRONG>pY,</STRONG> <STRONG>int*</STRONG> <STRONG>pX,</STRONG> <STRONG>bool</STRONG> <STRONG>to_screen);</STRONG>
- <STRONG>bool</STRONG> <STRONG>wmouse_trafo(const</STRONG> <STRONG>WINDOW*</STRONG> <STRONG>win,</STRONG> <STRONG>int*</STRONG> <STRONG>pY,</STRONG> <STRONG>int*</STRONG> <STRONG>pX,</STRONG>
- <STRONG>bool</STRONG> <STRONG>to_screen);</STRONG>
- <STRONG>int</STRONG> <STRONG>mouseinterval(int</STRONG> <STRONG>erval);</STRONG>
+ <STRONG>}</STRONG> <STRONG>MEVENT;</STRONG>
+ <STRONG>bool</STRONG> <STRONG>has_mouse(void);</STRONG>
-</PRE>
-<H2>DESCRIPTION</H2><PRE>
- These functions provide an interface to mouse events from
- <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>. Mouse events are represented by <STRONG>KEY_MOUSE</STRONG>
- pseudo-key values in the <STRONG>wgetch</STRONG> input stream.
-
- To make mouse events visible, use the <STRONG>mousemask</STRONG> function.
- This will set the mouse events to be reported. By de-
- fault, no mouse events are reported. The function will
- return a mask to indicate which of the specified mouse
- events can be reported; on complete failure it returns 0.
- If oldmask is non-NULL, this function fills the indicated
- location with the previous value of the given window's
- mouse event mask.
-
- As a side effect, setting a zero mousemask may turn off
- the mouse pointer; setting a nonzero mask may turn it on.
- Whether this happens is device-dependent.
+ <STRONG>int</STRONG> <STRONG>getmouse(MEVENT</STRONG> <STRONG>*</STRONG><EM>event</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>ungetmouse(MEVENT</STRONG> <STRONG>*</STRONG><EM>event</EM><STRONG>);</STRONG>
+
+ <STRONG>mmask_t</STRONG> <STRONG>mousemask(mmask_t</STRONG> <EM>newmask</EM><STRONG>,</STRONG> <STRONG>mmask_t</STRONG> <STRONG>*</STRONG><EM>oldmask</EM><STRONG>);</STRONG>
+
+ <STRONG>bool</STRONG> <STRONG>wenclose(const</STRONG> <STRONG>WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>y</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>x</EM><STRONG>);</STRONG>
+
+ <STRONG>bool</STRONG> <STRONG>mouse_trafo(int*</STRONG> <EM>pY</EM><STRONG>,</STRONG> <STRONG>int*</STRONG> <EM>pX</EM><STRONG>,</STRONG> <STRONG>bool</STRONG> <EM>to</EM><STRONG>_</STRONG><EM>screen</EM><STRONG>);</STRONG>
+ <STRONG>bool</STRONG> <STRONG>wmouse_trafo(const</STRONG> <STRONG>WINDOW*</STRONG> <EM>win</EM><STRONG>,</STRONG>
+ <STRONG>int*</STRONG> <EM>pY</EM><STRONG>,</STRONG> <STRONG>int*</STRONG> <EM>pX</EM><STRONG>,</STRONG> <STRONG>bool</STRONG> <EM>to</EM><STRONG>_</STRONG><EM>screen</EM><STRONG>);</STRONG>
+
+ <STRONG>int</STRONG> <STRONG>mouseinterval(int</STRONG> <EM>erval</EM><STRONG>);</STRONG>
+
+
+</PRE><H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+ These functions provide an interface to mouse events from <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>.
+ Mouse events are represented by <STRONG>KEY_MOUSE</STRONG> pseudo-key values in the
+ <STRONG><A HREF="curs_getch.3x.html">wgetch(3x)</A></STRONG> input stream.
+
+
+</PRE><H3><a name="h3-mousemask">mousemask</a></H3><PRE>
+ To make mouse events visible, use the <STRONG>mousemask</STRONG> function. This sets
+ the mouse events to be reported. By default, no mouse events are
+ reported.
+
+ <STRONG>o</STRONG> The function returns an updated copy of <EM>newmask</EM> to indicate which
+ of the specified mouse events can be reported.
+
+ If the screen has not been initialized, or if the terminal does not
+ support mouse-events, this function returns 0.
+
+ <STRONG>o</STRONG> If <EM>oldmask</EM> is non-<STRONG>NULL</STRONG>, this function fills the indicated location
+ with the previous value of the current screen's mouse event mask.
+ As a side effect, setting a zero mousemask may turn off the mouse
+ pointer; setting a nonzero mask may turn it on. Whether this happens
+ is device-dependent.
+
+
+</PRE><H3><a name="h3-Mouse-Events">Mouse Events</a></H3><PRE>
Here are the mouse event type masks which may be defined:
+ <STRONG>Name</STRONG> <STRONG>Description</STRONG>
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON1_PRESSED</STRONG> mouse button 1 down
+ <STRONG>BUTTON1_RELEASED</STRONG> mouse button 1 up
+ <STRONG>BUTTON1_CLICKED</STRONG> mouse button 1 clicked
+
+ <STRONG>BUTTON1_DOUBLE_CLICKED</STRONG> mouse button 1 double clicked
+ <STRONG>BUTTON1_TRIPLE_CLICKED</STRONG> mouse button 1 triple clicked
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON2_PRESSED</STRONG> mouse button 2 down
+ <STRONG>BUTTON2_RELEASED</STRONG> mouse button 2 up
+ <STRONG>BUTTON2_CLICKED</STRONG> mouse button 2 clicked
+ <STRONG>BUTTON2_DOUBLE_CLICKED</STRONG> mouse button 2 double clicked
+ <STRONG>BUTTON2_TRIPLE_CLICKED</STRONG> mouse button 2 triple clicked
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON3_PRESSED</STRONG> mouse button 3 down
+ <STRONG>BUTTON3_RELEASED</STRONG> mouse button 3 up
+ <STRONG>BUTTON3_CLICKED</STRONG> mouse button 3 clicked
+ <STRONG>BUTTON3_DOUBLE_CLICKED</STRONG> mouse button 3 double clicked
+ <STRONG>BUTTON3_TRIPLE_CLICKED</STRONG> mouse button 3 triple clicked
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON4_PRESSED</STRONG> mouse button 4 down
+ <STRONG>BUTTON4_RELEASED</STRONG> mouse button 4 up
+ <STRONG>BUTTON4_CLICKED</STRONG> mouse button 4 clicked
+ <STRONG>BUTTON4_DOUBLE_CLICKED</STRONG> mouse button 4 double clicked
+ <STRONG>BUTTON4_TRIPLE_CLICKED</STRONG> mouse button 4 triple clicked
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON5_PRESSED</STRONG> mouse button 5 down
+ <STRONG>BUTTON5_RELEASED</STRONG> mouse button 5 up
+ <STRONG>BUTTON5_CLICKED</STRONG> mouse button 5 clicked
+ <STRONG>BUTTON5_DOUBLE_CLICKED</STRONG> mouse button 5 double clicked
+ <STRONG>BUTTON5_TRIPLE_CLICKED</STRONG> mouse button 5 triple clicked
+ ------------------------------------------------------------------------
+ <STRONG>BUTTON_SHIFT</STRONG> shift was down during button state change
+ <STRONG>BUTTON_CTRL</STRONG> control was down during button state change
+ <STRONG>BUTTON_ALT</STRONG> alt was down during button state change
+ <STRONG>ALL_MOUSE_EVENTS</STRONG> report all button state changes
+ <STRONG>REPORT_MOUSE_POSITION</STRONG> report mouse movement
+ ------------------------------------------------------------------------
+
+
+</PRE><H3><a name="h3-getmouse">getmouse</a></H3><PRE>
+ Once a class of mouse events has been made visible in a window, calling
+ the <STRONG>wgetch</STRONG> function on that window may return <STRONG>KEY_MOUSE</STRONG> as an indicator
+ that a mouse event has been queued. To read the event data and pop the
+ event off the queue, call <STRONG>getmouse</STRONG>. This function will return <STRONG>OK</STRONG> if a
+ mouse event is actually visible in the given window, <STRONG>ERR</STRONG> otherwise.
+ When <STRONG>getmouse</STRONG> returns <STRONG>OK</STRONG>, the data deposited 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. 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.
+
+
+</PRE><H3><a name="h3-ungetmouse">ungetmouse</a></H3><PRE>
+ The <STRONG>ungetmouse</STRONG> function behaves analogously to <STRONG>ungetch</STRONG>. It pushes a
+ <STRONG>KEY_MOUSE</STRONG> event onto the input queue, and associates with that event
+ the given state data and screen-relative character-cell coordinates.
+
+
+</PRE><H3><a name="h3-wenclose">wenclose</a></H3><PRE>
+ The <STRONG>wenclose</STRONG> function tests whether a given pair of screen-relative
+ character-cell coordinates is enclosed by a given window, returning
+ <STRONG>TRUE</STRONG> if it is and <STRONG>FALSE</STRONG> otherwise. It is useful for determining what
+ subset of the screen windows enclose the location of a mouse event.
+
+ If the parameter is a pad, <STRONG>wenclose</STRONG> uses the most recent screen
+ coordinates used for this pad in <STRONG><A HREF="curs_pad.3x.html">prefresh(3x)</A></STRONG> or <STRONG><A HREF="curs_pad.3x.html">pnoutrefresh(3x)</A></STRONG>.
+
+
+</PRE><H3><a name="h3-wmouse_trafo">wmouse_trafo</a></H3><PRE>
+ The <STRONG>wmouse_trafo</STRONG> function transforms a given pair of coordinates from
+ <STRONG>stdscr</STRONG>-relative coordinates to coordinates relative to the given window
+ or vice versa. The resulting <STRONG>stdscr</STRONG>-relative coordinates are not
+ always identical to screen 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><A HREF="curs_slk.3x.html">slk_init(3x)</A></STRONG> calls, for example).
+
+ <STRONG>o</STRONG> If the parameter <EM>to</EM><STRONG>_</STRONG><EM>screen</EM> is <STRONG>TRUE</STRONG>, the pointers <EM>pY,</EM> <EM>pX</EM> must
+ reference the coordinates of a location inside the window <EM>win</EM>.
+ They are converted to <STRONG>stdscr</STRONG>-relative coordinates and returned
+ through the pointers. If the conversion was successful, the
+ function returns <STRONG>TRUE</STRONG>.
+
+ If one of the parameters was <STRONG>NULL</STRONG> or the location is not inside the
+ window, <STRONG>FALSE</STRONG> is returned.
+
+ <STRONG>o</STRONG> If <EM>to</EM><STRONG>_</STRONG><EM>screen</EM> is <STRONG>FALSE</STRONG>, the pointers <EM>pY,</EM> <EM>pX</EM> must reference
+ <STRONG>stdscr</STRONG>-relative coordinates. They are converted to window-relative
+ coordinates if the window <EM>win</EM> encloses this point. In this case
+ the function returns <STRONG>TRUE</STRONG>.
+
+ If one of the parameters is <STRONG>NULL</STRONG> or the point is not inside the
+ window, <STRONG>FALSE</STRONG> is returned.
+
+ The referenced coordinates are only replaced by the converted
+ coordinates if the transformation was successful.
+
+
+</PRE><H3><a name="h3-mouse_trafo">mouse_trafo</a></H3><PRE>
+ The <STRONG>mouse_trafo</STRONG> function performs the same translation as <STRONG>wmouse_trafo</STRONG>,
+ using <STRONG>stdscr</STRONG> for <EM>win</EM>.
+
+
+</PRE><H3><a name="h3-mouseinterval">mouseinterval</a></H3><PRE>
+ The <STRONG>mouseinterval</STRONG> function sets the maximum time (in thousands of a
+ second) that can elapse between press and release events for them to be
+ resolved as a click.
+
+ Calling <STRONG>mouseinterval(0)</STRONG> disables click resolution. When ncurses
+ detects a mouse event, it awaits further input activity up to this
+ interval, and then checks for a subsequent mouse event which can be
+ combined with the first event. If the timeout expires without input
+ activity (which would happen with a zero interval), then no click
+ resolution will occur.
- <EM>Name</EM> <EM>Description</EM>
- ---------------------------------------------------------------------
- BUTTON1_PRESSED mouse button 1 down
- BUTTON1_RELEASED mouse button 1 up
- BUTTON1_CLICKED mouse button 1 clicked
- BUTTON1_DOUBLE_CLICKED mouse button 1 double clicked
- BUTTON1_TRIPLE_CLICKED mouse button 1 triple clicked
- ---------------------------------------------------------------------
- BUTTON2_PRESSED mouse button 2 down
- BUTTON2_RELEASED mouse button 2 up
- BUTTON2_CLICKED mouse button 2 clicked
- 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
- BUTTON3_TRIPLE_CLICKED mouse button 3 triple clicked
- ---------------------------------------------------------------------
- BUTTON4_PRESSED mouse button 4 down
- BUTTON4_RELEASED mouse button 4 up
- BUTTON4_CLICKED mouse button 4 clicked
- BUTTON4_DOUBLE_CLICKED mouse button 4 double clicked
- BUTTON4_TRIPLE_CLICKED mouse button 4 triple clicked
- ---------------------------------------------------------------------
- BUTTON5_PRESSED mouse button 5 down
- BUTTON5_RELEASED mouse button 5 up
- BUTTON5_CLICKED mouse button 5 clicked
- BUTTON5_DOUBLE_CLICKED mouse button 5 double clicked
- BUTTON5_TRIPLE_CLICKED mouse button 5 triple clicked
- ---------------------------------------------------------------------
- BUTTON_SHIFT shift was down during button state change
- BUTTON_CTRL control was down during button state change
- BUTTON_ALT alt was down during button state change
- ALL_MOUSE_EVENTS report all button state changes
- REPORT_MOUSE_POSITION report mouse movement
- ---------------------------------------------------------------------
-
- Once a class of mouse events have been made visible in a
- window, calling the <STRONG>wgetch</STRONG> function on that window may re-
- turn <STRONG>KEY_MOUSE</STRONG> as an indicator that a mouse event has been
- queued. To read the event data and pop the event off the
- queue, call <STRONG>getmouse</STRONG>. This function will return <STRONG>OK</STRONG> if a
- mouse event is actually visible in the given window, <STRONG>ERR</STRONG>
- otherwise. When <STRONG>getmouse</STRONG> returns <STRONG>OK</STRONG>, the data deposited
- 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.
-
- 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-
- sociates with that event the given state data and screen-
- relative character-cell coordinates.
-
- The <STRONG>wenclose</STRONG> function tests whether a given pair of
- screen-relative character-cell coordinates is enclosed by
- a given window, returning TRUE if it is and FALSE other-
- wise. It is useful for determining what subset of the
- 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 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-
- tion returns the previous interval value. Use <STRONG>mouseinter-</STRONG>
- <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
- 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>str</STRONG> that expects a linefeed for input-loop termination.
+ This function returns the previous interval value. Use
+ <STRONG>mouseinterval(-1)</STRONG> to obtain the interval without altering it.
+ The mouse interval is set to one sixth of a second when the
+ corresponding screen is initialized, e.g., in <STRONG><A HREF="curs_initscr.3x.html">initscr(3x)</A></STRONG> or
+ <STRONG><A HREF="curs_terminfo.3x.html">setupterm(3x)</A></STRONG>.
-</PRE>
-<H2>RETURN VALUE</H2><PRE>
- <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,
+</PRE><H3><a name="h3-has_mouse">has_mouse</a></H3><PRE>
+ The <STRONG>has_mouse</STRONG> function returns <STRONG>TRUE</STRONG> if the mouse driver has been
+ successfully initialized, and <STRONG>FALSE</STRONG> otherwise.
+
+ Mouse events are ignored when input is in cooked mode, and cause an
+ error beep when cooked mode is being simulated in a window by a
+ function such as <STRONG>getstr</STRONG> that expects a linefeed for input-loop
+ termination.
+
+
+</PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE>
+ <STRONG>has_mouse</STRONG>, <STRONG>wenclose</STRONG>, <STRONG>mouse_trafo</STRONG>, and <STRONG>wmouse_trafo</STRONG> return <STRONG>TRUE</STRONG> or <STRONG>FALSE</STRONG>
+ as noted above.
+
+ <STRONG>getmouse</STRONG> and <STRONG>ungetmouse</STRONG> return <STRONG>ERR</STRONG> upon failure and <STRONG>OK</STRONG> upon success.
- <STRONG>ungetmouse</STRONG>
- returns an error if the FIFO is full.
+ <STRONG>getmouse</STRONG> fails if:
+
+ <STRONG>o</STRONG> no mouse driver was initialized,
+
+ <STRONG>o</STRONG> the mask of reportable events is zero,
+
+ <STRONG>o</STRONG> a mouse event was detected that does not match the mask,
+
+ <STRONG>o</STRONG> or if no more events remain in the queue.
+
+ <STRONG>ungetmouse</STRONG> returns an error if the event queue 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-
- turns the maximum interval value (166).
+ <STRONG>mouseinterval</STRONG> returns the previous interval value, unless the terminal
+ was not initialized. In that case, it returns the maximum interval
+ value (166).
- <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><a name="h2-NOTES">NOTES</a></H2><PRE>
+ The order of the <STRONG>MEVENT</STRONG> structure members is not guaranteed.
+ Additional fields may be added to the structure in the future.
-</PRE>
-<H2>PORTABILITY</H2><PRE>
- 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-
- ing ncurses:
-
- 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
- bits.
-
- 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-
- cific drivers including
- 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>
- <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
- 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
- pressure-sensitive) or with 3D-mice/trackballs/power
- gloves.
+ Under <EM>ncurses,</EM> these calls are implemented using either <EM>xterm</EM>'s built-
+ in mouse-tracking API or platform-specific drivers including
+ <STRONG>o</STRONG> Alessandro Rubini's gpm server
-</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
- 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-
- 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
- the terminal description, then the terminal may send mouse
- events.
+ <STRONG>o</STRONG> FreeBSD sysmouse
+ <STRONG>o</STRONG> OS/2 EMX
-</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>.
+ If you are using an unsupported configuration, mouse events will not be
+ visible to <EM>ncurses</EM> (and the <STRONG>mousemask</STRONG> function will always return <STRONG>0</STRONG>).
+
+ If the <EM>terminfo</EM> entry contains a <STRONG>XM</STRONG> string, this is used in the <EM>xterm</EM>
+ 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 <EM>xterm:</EM>
+
+ \E[?1000%?%p1%{1}%=%th%el%;
+
+ The mouse driver also recognizes a newer <EM>xterm</EM> private mode 1006, e.g.,
+
+ \E[?1006;1000%?%p1%{1}%=%th%el%;
+
+ The <EM>z</EM> member in the event structure is not presently used. It is
+ intended for use with touch screens (which may be pressure-sensitive)
+ or with 3D-mice/trackballs/power gloves.
+
+ The <STRONG>ALL_MOUSE_EVENTS</STRONG> class does not include <STRONG>REPORT_MOUSE_POSITION</STRONG>.
+ They are distinct. For example, in <EM>xterm,</EM> wheel/scrolling mice send
+ position reports as a sequence of presses of buttons 4 or 5 without
+ matching button-releases.
+
+
+</PRE><H2><a name="h2-EXTENSIONS">EXTENSIONS</a></H2><PRE>
+ These functions were designed for <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>, and are not found in
+ SVr4 <EM>curses</EM>, 4.4BSD <EM>curses</EM>, or any other previous curses
+ implementation. (SVr4 <EM>curses</EM> did have a <EM>getmouse</EM> function, which took
+ no argument and returned a different type.)
+
+
+</PRE><H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
+ Applications employing the <EM>ncurses</EM> mouse extension should condition its
+ use on the visibility of the <STRONG>NCURSES_MOUSE_VERSION</STRONG> preprocessor macro.
+ When the interface changes, the macro's value increments. Multiple
+ versions are available when <EM>ncurses</EM> is configured; see section
+ "ALTERNATE CONFIGURATIONS" of <STRONG><A HREF="ncurses.3x.html">ncurses(3x)</A></STRONG>. The following values may be
+ specified.
+
+ 1 has definitions for reserved events. The mask uses 28 bits.
+
+ 2 adds definitions for button 5, removes the definitions for
+ reserved events. The mask uses 29 bits.
+
+ SVr4 <EM>curses</EM> had support for the mouse in a variant of <STRONG>xterm(1)</STRONG>. It is
+ mentioned in a few places, with little supporting documentation.
+
+ <STRONG>o</STRONG> Its "libcurses" manual page lists functions for this feature
+ prototyped in <EM>curses.h</EM>.
+
+ extern int mouse_set(long int);
+ extern int mouse_on(long int);
+ extern int mouse_off(long int);
+ extern int request_mouse_pos(void);
+ extern int map_button(unsigned long);
+ extern void wmouse_position(WINDOW *, int *, int *);
+ extern unsigned long getmouse(void), getbmap(void);
+
+ <STRONG>o</STRONG> Its "terminfo" manual page lists capabilities for the feature.
+
+ <STRONG>buttons</STRONG> <STRONG>btns</STRONG> <STRONG>BT</STRONG> Number of buttons on the mouse
+ <STRONG>get_mouse</STRONG> <STRONG>getm</STRONG> <STRONG>Gm</STRONG> Curses should get button events
+ <STRONG>key_mouse</STRONG> <STRONG>kmous</STRONG> <STRONG>Km</STRONG> 0631, Mouse event has occurred
+ <STRONG>mouse_info</STRONG> <STRONG>minfo</STRONG> <STRONG>Mi</STRONG> Mouse status information
+ <STRONG>req_mouse_pos</STRONG> <STRONG>reqmp</STRONG> <STRONG>RQ</STRONG> Request mouse position report
+
+ <STRONG>o</STRONG> The interface made assumptions (as does <EM>ncurses</EM>) about the escape
+ sequences sent to and received from the terminal.
+
+ For instance, the SVr4 <EM>curses</EM> library used the <STRONG>get_mouse</STRONG> capability
+ to tell the terminal which mouse button events it should send,
+ passing the mouse-button bit mask to the terminal. Also, it could
+ ask the terminal where the mouse was using the <STRONG>req_mouse_pos</STRONG>
+ capability.
+
+ Those features required a terminal program that had been modified
+ to work with SVr4 <EM>curses.</EM> They were not part of the X Consortium's
+ <EM>xterm.</EM>
+
+ When developing the <EM>xterm</EM> mouse support for <EM>ncurses</EM> in September 1995,
+ Eric Raymond was uninterested in using the same interface due to its
+ lack of documentation. Later, in 1998, Mark Hesseling provided support
+ in <EM>PDCurses</EM> 2.3 using the SVr4 interface. <EM>PDCurses,</EM> however, does not
+ use video terminals, making it unnecessary to be concerned about
+ compatibility with the escape sequences.
+
+
+</PRE><H2><a name="h2-BUGS">BUGS</a></H2><PRE>
+ Mouse events from <EM>xterm</EM> are <EM>not</EM> ignored in cooked mode if they have
+ been enabled by <STRONG>mousemask</STRONG>. Instead, the <EM>xterm</EM> mouse report sequence
+ appears in the string read.
+
+ Mouse event reports from <EM>xterm</EM> are not detected correctly in a window
+ with keypad application mode disabled, since they are interpreted as a
+ variety of function key. Set the terminal's <EM>terminfo</EM> capability <STRONG>kmous</STRONG>
+ to "\E[M" (the beginning of the response from <EM>xterm</EM> for mouse clicks).
+ Other values of <STRONG>kmous</STRONG> are permitted under the same assumption, that is,
+ the report begins with that sequence.
+
+ Because there are no standard response sequences that serve to identify
+ terminals supporting the <EM>xterm</EM> mouse protocol, <EM>ncurses</EM> assumes that if
+ <STRONG>kmous</STRONG> is defined in the terminal description, or if the terminal type's
+ primary name or aliases contain the string "xterm", then the terminal
+ may send mouse events. The <STRONG>kmous</STRONG> capability is checked first, allowing
+ use of newer <EM>xterm</EM> mouse protocols, such as its private mode 1006.
+
+
+</PRE><H2><a name="h2-SEE-ALSO">SEE ALSO</a></H2><PRE>
+ <STRONG><A HREF="ncurses.3x.html">curses(3x)</A></STRONG>, <STRONG><A HREF="curs_inopts.3x.html">curs_inopts(3x)</A></STRONG>, <STRONG><A HREF="curs_kernel.3x.html">curs_kernel(3x)</A></STRONG>, <STRONG><A HREF="curs_pad.3x.html">curs_pad(3x)</A></STRONG>,
+ <STRONG><A HREF="curs_slk.3x.html">curs_slk(3x)</A></STRONG>, <STRONG><A HREF="curs_variables.3x.html">curs_variables(3x)</A></STRONG>
- <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>
+ncurses 6.4 2024-02-17 <STRONG><A HREF="curs_mouse.3x.html">curs_mouse(3x)</A></STRONG>
</PRE>
-<HR>
-<ADDRESS>
-Man(1) output converted with
-<a href="http://www.oac.uci.edu/indiv/ehood/man2html.html">man2html</a>
-</ADDRESS>
+<div class="nav">
+<ul>
+<li><a href="#h2-NAME">NAME</a></li>
+<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
+<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
+<ul>
+<li><a href="#h3-mousemask">mousemask</a></li>
+<li><a href="#h3-Mouse-Events">Mouse Events</a></li>
+<li><a href="#h3-getmouse">getmouse</a></li>
+<li><a href="#h3-ungetmouse">ungetmouse</a></li>
+<li><a href="#h3-wenclose">wenclose</a></li>
+<li><a href="#h3-wmouse_trafo">wmouse_trafo</a></li>
+<li><a href="#h3-mouse_trafo">mouse_trafo</a></li>
+<li><a href="#h3-mouseinterval">mouseinterval</a></li>
+<li><a href="#h3-has_mouse">has_mouse</a></li>
+</ul>
+</li>
+<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
+<li><a href="#h2-NOTES">NOTES</a></li>
+<li><a href="#h2-EXTENSIONS">EXTENSIONS</a></li>
+<li><a href="#h2-PORTABILITY">PORTABILITY</a></li>
+<li><a href="#h2-BUGS">BUGS</a></li>
+<li><a href="#h2-SEE-ALSO">SEE ALSO</a></li>
+</ul>
+</div>
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