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- * @Id: form_driver.3x,v 1.22 2010/12/04 18:38:55 tom Exp @
+ * @Id: form_driver.3x,v 1.24 2015/08/02 18:21:11 tom Exp @
-->
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-<H1>form_driver 3x</H1>
-<HR>
+<H1 class="no-header">form_driver 3x</H1>
<PRE>
<STRONG><A HREF="form_driver.3x.html">form_driver(3x)</A></STRONG> <STRONG><A HREF="form_driver.3x.html">form_driver(3x)</A></STRONG>
</PRE>
<H2><a name="h2-SYNOPSIS">SYNOPSIS</a></H2><PRE>
<STRONG>#include</STRONG> <STRONG><form.h></STRONG>
- int form_driver(FORM *form, int c);
+ <STRONG>int</STRONG> <STRONG>form_driver(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>c</EM><STRONG>);</STRONG>
+ <STRONG>int</STRONG> <STRONG>form_driver_w(FORM</STRONG> <STRONG>*</STRONG><EM>form</EM><STRONG>,</STRONG> <STRONG>int</STRONG> <EM>c</EM><STRONG>,</STRONG> <STRONG>wchar_t</STRONG> <EM>wch</EM><STRONG>);</STRONG>
</PRE>
<H2><a name="h2-DESCRIPTION">DESCRIPTION</a></H2><PRE>
+
+</PRE>
+<H3><a name="h3-form_driver">form_driver</a></H3><PRE>
Once a form has been posted (displayed), you should funnel
input events to it through <STRONG>form_driver</STRONG>. This routine has
three major input cases:
<STRONG>o</STRONG> The input is a form navigation request. Navigation
request codes are constants defined in <STRONG><form.h></STRONG>, which
are distinct from the key- and character codes
- returned by <STRONG>wgetch</STRONG>.
+ returned by <STRONG><A HREF="wgetch.3x.html">wgetch(3x)</A></STRONG>.
<STRONG>o</STRONG> The input is a printable character. Printable charac-
ters (which must be positive, less than 256) are
<STRONG>o</STRONG> The input is the KEY_MOUSE special key associated with
an mouse event.
- The form driver requests are as follows:
-
- REQ_NEXT_PAGE
- Move to the next page.
-
- REQ_PREV_PAGE
- Move to the previous page.
-
- REQ_FIRST_PAGE
- Move to the first page.
-
- REQ_LAST_PAGE
- Move to the last field.
-
-
- REQ_NEXT_FIELD
- Move to the next field.
-
- REQ_PREV_FIELD
- Move to the previous field.
-
- REQ_FIRST_FIELD
- Move to the first field.
-
- REQ_LAST_FIELD
- Move to the last field.
-
- REQ_SNEXT_FIELD
- Move to the sorted next field.
-
- REQ_SPREV_FIELD
- Move to the sorted previous field.
-
- REQ_SFIRST_FIELD
- Move to the sorted first field.
-
- REQ_SLAST_FIELD
- Move to the sorted last field.
-
- REQ_LEFT_FIELD
- Move left to a field.
-
- REQ_RIGHT_FIELD
- Move right to a field.
-
- REQ_UP_FIELD
- Move up to a field.
-
- REQ_DOWN_FIELD
- Move down to a field.
-
-
- REQ_NEXT_CHAR
- Move to the next char.
-
- REQ_PREV_CHAR
- Move to the previous char.
-
- REQ_NEXT_LINE
- Move to the next line.
-
- REQ_PREV_LINE
- Move to the previous line.
-
- REQ_NEXT_WORD
- Move to the next word.
-
- REQ_PREV_WORD
- Move to the previous word.
-
- REQ_BEG_FIELD
- Move to the beginning of the field.
-
- REQ_END_FIELD
- Move to the end of the field.
-
- REQ_BEG_LINE
- Move to the beginning of the line.
-
- REQ_END_LINE
- Move to the end of the line.
-
- REQ_LEFT_CHAR
- Move left in the field.
-
- REQ_RIGHT_CHAR
- Move right in the field.
- REQ_UP_CHAR
- Move up in the field.
-
- REQ_DOWN_CHAR
- Move down in the field.
-
-
- REQ_NEW_LINE
- Insert or overlay a new line.
-
- REQ_INS_CHAR
- Insert a blank at the cursor.
-
- REQ_INS_LINE
- Insert a blank line at the cursor.
-
- REQ_DEL_CHAR
- Delete character at the cursor.
-
- REQ_DEL_PREV
- Delete character before the cursor.
-
- REQ_DEL_LINE
- Delete line at the cursor.
-
- REQ_DEL_WORD
- Delete blank-delimited word at the cursor.
-
- REQ_CLR_EOL
- Clear to end of line from cursor.
-
- REQ_CLR_EOF
- Clear to end of field from cursor.
-
- REQ_CLR_FIELD
- Clear the entire field.
-
- REQ_OVL_MODE
- Enter overlay mode.
-
- REQ_INS_MODE
- Enter insert mode.
-
-
- REQ_SCR_FLINE
- Scroll the field forward a line.
-
- REQ_SCR_BLINE
- Scroll the field backward a line.
-
- REQ_SCR_FPAGE
- Scroll the field forward a page.
-
- REQ_SCR_BPAGE
- Scroll the field backward a page.
-
- REQ_SCR_FHPAGE
- Scroll the field forward half a page.
-
- REQ_SCR_BHPAGE
- Scroll the field backward half a page.
-
-
- REQ_SCR_FCHAR
- Scroll the field forward a character.
-
- REQ_SCR_BCHAR
- Scroll the field backward a character.
-
- REQ_SCR_HFLINE
- Horizontal scroll the field forward a line.
-
- REQ_SCR_HBLINE
- Horizontal scroll the field backward a line.
-
- REQ_SCR_HFHALF
- Horizontal scroll the field forward half a line.
-
- REQ_SCR_HBHALF
- Horizontal scroll the field backward half a line.
-
-
- REQ_VALIDATION
- Validate field.
+</PRE>
+<H3><a name="h3-form_driver_w">form_driver_w</a></H3><PRE>
+ This extension simplifies the use of the forms library
+ using wide characters. The input is either a key code (a
+ request) or a wide character returned by <STRONG><A HREF="get_wch.3x.html">get_wch(3x)</A></STRONG>. The
+ type must be passed as well, to enable the library to
+ determine whether the parameter is a wide character or a
+ request.
- REQ_NEXT_CHOICE
- Display next field choice.
- REQ_PREV_CHOICE
- Display previous field choice.
+</PRE>
+<H3><a name="h3-Form-driver-requests">Form-driver requests</a></H3><PRE>
+ The form driver requests are as follows:
- If the second argument is a printable character, the
- driver places it in the current position in the current
- field. If it is one of the forms requests listed above,
+ <EM>Name</EM> <EM>Description</EM>
+ -------------------------------------------------------------------------
+ REQ_BEG_FIELD Move to the beginning of the field.
+ REQ_BEG_LINE Move to the beginning of the line.
+ REQ_CLR_EOF Clear to end of field from cursor.
+ REQ_CLR_EOL Clear to end of line from cursor.
+ REQ_CLR_FIELD Clear the entire field.
+ REQ_DEL_CHAR Delete character at the cursor.
+ REQ_DEL_LINE Delete line at the cursor.
+ REQ_DEL_PREV Delete character before the cursor.
+ REQ_DEL_WORD Delete blank-delimited word at the cursor.
+ REQ_DOWN_CHAR Move down in the field.
+ REQ_DOWN_FIELD Move down to a field.
+ REQ_END_FIELD Move to the end of the field.
+ REQ_END_LINE Move to the end of the line.
+ REQ_FIRST_FIELD Move to the first field.
+ REQ_FIRST_PAGE Move to the first page.
+ REQ_INS_CHAR Insert a blank at the cursor.
+ REQ_INS_LINE Insert a blank line at the cursor.
+ REQ_INS_MODE Enter insert mode.
+ REQ_LAST_FIELD Move to the last field.
+ REQ_LAST_PAGE Move to the last field.
+ REQ_LEFT_CHAR Move left in the field.
+ REQ_LEFT_FIELD Move left to a field.
+
+ REQ_NEW_LINE Insert or overlay a new line.
+ REQ_NEXT_CHAR Move to the next char.
+ REQ_NEXT_CHOICE Display next field choice.
+ REQ_NEXT_FIELD Move to the next field.
+ REQ_NEXT_LINE Move to the next line.
+ REQ_NEXT_PAGE Move to the next page.
+ REQ_NEXT_PAGE Move to the next page.
+ REQ_NEXT_WORD Move to the next word.
+ REQ_OVL_MODE Enter overlay mode.
+ REQ_PREV_CHAR Move to the previous char.
+ REQ_PREV_CHOICE Display previous field choice.
+ REQ_PREV_FIELD Move to the previous field.
+ REQ_PREV_LINE Move to the previous line.
+ REQ_PREV_PAGE Move to the previous page.
+ REQ_PREV_WORD Move to the previous word.
+ REQ_RIGHT_CHAR Move right in the field.
+ REQ_RIGHT_FIELD Move right to a field.
+ REQ_SCR_BCHAR Scroll the field backward a character.
+ REQ_SCR_BHPAGE Scroll the field backward half a page.
+ REQ_SCR_BLINE Scroll the field backward a line.
+ REQ_SCR_BPAGE Scroll the field backward a page.
+ REQ_SCR_FCHAR Scroll the field forward a character.
+ REQ_SCR_FHPAGE Scroll the field forward half a page.
+ REQ_SCR_FLINE Scroll the field forward a line.
+ REQ_SCR_FPAGE Scroll the field forward a page.
+ REQ_SCR_HBHALF Horizontal scroll the field backward half a line.
+ REQ_SCR_HBLINE Horizontal scroll the field backward a line.
+ REQ_SCR_HFHALF Horizontal scroll the field forward half a line.
+ REQ_SCR_HFLINE Horizontal scroll the field forward a line.
+ REQ_SFIRST_FIELD Move to the sorted first field.
+ REQ_SLAST_FIELD Move to the sorted last field.
+ REQ_SNEXT_FIELD Move to the sorted next field.
+ REQ_SPREV_FIELD Move to the sorted previous field.
+ REQ_UP_CHAR Move up in the field.
+ REQ_UP_FIELD Move up to a field.
+ REQ_VALIDATION Validate field.
+
+ If the second argument is a printable character, the
+ driver places it in the current position in the current
+ field. If it is one of the forms requests listed above,
that request is executed.
</PRE>
-<H3><a name="h3-M
OUSE-HANDLING">MOUSE HANDLING</a></H3><PRE>
- If the second argument is the KEY_MOUSE special key, the
+<H3><a name="h3-M
ouse-handling">Mouse handling</a></H3><PRE>
+ If the second argument is the KEY_MOUSE special key, the
associated mouse event is translated into one of the above
- pre-defined requests. Currently only clicks in the user
- window (e.g., inside the form display area or the decora-
+ pre-defined requests. Currently only clicks in the user
+ window (e.g., inside the form display area or the decora-
tion window) are handled.
If you click above the display region of the form:
a REQ_LAST_FIELD is generated for a triple-click.
- If you click at an field inside the display area of the
+ If you click at an field inside the display area of the
form:
<STRONG>o</STRONG> the form cursor is positioned to that field.
- <STRONG>o</STRONG> If you double-click a field, the form cursor is
- positioned to that field and <STRONG>E_UNKNOWN_COMMAND</STRONG> is
+ <STRONG>o</STRONG> If you double-click a field, the form cursor is
+ positioned to that field and <STRONG>E_UNKNOWN_COMMAND</STRONG> is
returned. This return value makes sense, because a
- double click usually means that an field-specific
- action should be returned. It is exactly the pur-
- pose of this return value to signal that an appli-
+ double click usually means that an field-specific
+ action should be returned. It is exactly the pur-
+ pose of this return value to signal that an appli-
cation specific command should be executed.
- <STRONG>o</STRONG> If a translation into a request was done,
+ <STRONG>o</STRONG> If a translation into a request was done,
<STRONG>form_driver</STRONG> returns the result of this request.
- If you clicked outside the user window or the mouse event
- could not be translated into a form request an
+ If you clicked outside the user window or the mouse event
+ could not be translated into a form request an
<STRONG>E_REQUEST_DENIED</STRONG> is returned.
</PRE>
-<H3><a name="h3-A
PPLICATION-DEFINED-COMMANDS">APPLICATION-DEFINED COMMANDS</a></H3><PRE>
+<H3><a name="h3-A
pplication-defined-commands">Application-defined commands</a></H3><PRE>
If the second argument is neither printable nor one of the
- above pre-defined form requests, the driver assumes it is
+ above pre-defined form requests, the driver assumes it is
an application-specific command and returns <STRONG>E_UNKNOWN_COM-</STRONG>
<STRONG>MAND</STRONG>. Application-defined commands should be defined rel-
- ative to <STRONG>MAX_COMMAND</STRONG>, the maximum value of these pre-
+ ative to <STRONG>MAX_COMMAND</STRONG>, the maximum value of these pre-
defined requests.
<STRONG>E_OK</STRONG> The routine succeeded.
<STRONG>E_BAD_ARGUMENT</STRONG>
- Routine detected an incorrect or out-of-range argu-
+ Routine detected an incorrect or out-of-range argu-
ment.
<STRONG>E_BAD_STATE</STRONG>
</PRE>
<H2><a name="h2-PORTABILITY">PORTABILITY</a></H2><PRE>
- These routines emulate the System V forms library. They
+ These routines emulate the System V forms library. They
were not supported on Version 7 or BSD versions.
</PRE>
<H2><a name="h2-AUTHORS">AUTHORS</a></H2><PRE>
- Juergen Pfeifer. Manual pages and adaptation for new
+ Juergen Pfeifer. Manual pages and adaptation for new
curses by Eric S. Raymond.
<li><a href="#h2-SYNOPSIS">SYNOPSIS</a></li>
<li><a href="#h2-DESCRIPTION">DESCRIPTION</a>
<ul>
-<li><a href="#h3-MOUSE-HANDLING">MOUSE HANDLING</a></li>
-<li><a href="#h3-APPLICATION-DEFINED-COMMANDS">APPLICATION-DEFINED COMMANDS</a></li>
+<li><a href="#h3-form_driver">form_driver</a></li>
+<li><a href="#h3-form_driver_w">form_driver_w</a></li>
+<li><a href="#h3-Form-driver-requests">Form-driver requests</a></li>
+<li><a href="#h3-Mouse-handling">Mouse handling</a></li>
+<li><a href="#h3-Application-defined-commands">Application-defined commands</a></li>
</ul>
</li>
<li><a href="#h2-RETURN-VALUE">RETURN VALUE</a></li>
projects / ncurses.git / blobdiff