OU
/
CWE-ou-minkata
mirror of https://foundry.openuru.org/gitblit/r/CWE-ou-minkata.git
2
1
Fork 0
Code Releases Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
195 Commits
81 Branches
23 Tags
172 MiB
Tree: 2abd744ba6
Branches Tags
${ item.name }
Create tag ${ searchTerm }
Create branch ${ searchTerm }
from '2abd744ba6'
${ noResults }
CWE-ou-minkata/MOULOpenSourceClientPlugin/StaticSDKs/Win32/Scintilla/doc/ScintillaUsage.html

376 lines
23 KiB
Raw Normal View History Unescape

Initial Commit of CyanWorlds.com Engine Open Source Client/Plugin
14 years ago
<?xml version="1.0"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta name="generator" content="HTML Tidy, see www.w3.org" />
<meta name="generator" content="SciTE" />
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>
Scintilla Usage Notes
</title>
<style type="text/css">
SPAN {
font-family: Verdana, Arial, Helvetica;
font-size: 9pt;
}
.S0 {
color: #808080;
font-family: Verdana, Arial, Helvetica;
}
.S1 {
font-family: Comic Sans MS, Times New Roman, Times;
color: #007F00;
font-size: 8pt;
}
.S2 {
font-family: Comic Sans MS, Times New Roman, Times;
color: #007F00;
font-size: 8pt;
}
.S3 {
font-family: Verdana, Arial, Helvetica;
color: #7F7F7F;
}
.S4 {
font-family: Verdana, Arial, Helvetica;
color: #007F7F;
}
.S5 {
color: #00007F;
font-weight: bold;
font-family: Verdana, Arial, Helvetica;
}
.S6 {
color: #7F007F;
font-family: Courier New, Courier;
}
.S7 {
color: #7F007F;
font-family: Courier New, Courier;
}
.S8 {
color: #007F7F;
}
.S9 {
color: #7F7F00;
}
.S10 {
font-weight: bold;
}
</style>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<table bgcolor="#000000" width="100%" cellspacing="0" cellpadding="0" border="0">
<tr>
<td>
<img src="SciTEIco.png" border="3" height="64" width="64" alt="Scintilla icon" />
</td>
<td>
<a href="index.html" style="color:white;text-decoration:none"><font size="5">Scintilla
Usage Notes</font></a>
</td>
</tr>
</table>
<h2>
Implementing Auto-Indent
</h2>
<p>
The key idea is to use the SCN_CHARADDED notification to add indentation after a newline.
</p>
<p>
The lParam on the notification is a pointer to a SCNotification structure whose ch member
specifies the character added. If a newline was added, the previous line can be retrieved and
the same indentation can be added to the new line.
</p>
<p>
Here is the relevant portion of code from SciTE: (SciTE.cxx SciTEWindow::CharAdded)
</p>
<span class='S5'>if</span><span class='S0'>&nbsp;</span> <span class='S10'>(</span><span
class='S11'>ch</span><span class='S0'>&nbsp;</span> <span class='S10'>==</span><span
class='S0'>&nbsp;</span> <span class='S7'>'\r'</span><span class='S0'>&nbsp;</span> <span
class='S10'>||</span><span class='S0'>&nbsp;</span> <span class='S11'>ch</span><span
class='S0'>&nbsp;</span> <span class='S10'>==</span><span class='S0'>&nbsp;</span> <span
class='S7'>'\n'</span><span class='S10'>)</span><span class='S0'>&nbsp;</span> <span
class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>char</span><span class='S0'>&nbsp;</span>
<span class='S11'>linebuf</span><span class='S10'>[</span><span class='S4'>1000</span><span
class='S10'>];</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>int</span><span class='S0'>&nbsp;</span>
<span class='S11'>curLine</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>GetCurrentLineNumber</span><span
class='S10'>();</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>int</span><span class='S0'>&nbsp;</span>
<span class='S11'>lineLength</span><span class='S0'>&nbsp;</span> <span class='S10'>
=</span><span class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span
class='S10'>(</span><span class='S11'>SCI_LINELENGTH</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>curLine</span><span class='S10'>);</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S2'>
//Platform::DebugPrintf("[CR]&nbsp;%d&nbsp;len&nbsp;=&nbsp;%d\n",&nbsp;curLine,&nbsp;lineLength);</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>if</span><span class='S0'>&nbsp;</span> <span
class='S10'>(</span><span class='S11'>curLine</span><span class='S0'>&nbsp;</span> <span
class='S10'>&gt;</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S0'>&nbsp;</span> <span class='S10'>&amp;&amp;</span><span class='S0'>&nbsp;</span>
<span class='S11'>lineLength</span><span class='S0'>&nbsp;</span> <span class='S10'>
&lt;=</span><span class='S0'>&nbsp;</span> <span class='S4'>2</span><span
class='S10'>)</span><span class='S0'>&nbsp;</span> <span class='S10'>{</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>int</span><span class='S0'>&nbsp;</span>
<span class='S11'>prevLineLength</span><span class='S0'>&nbsp;</span> <span class='S10'>
=</span><span class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span
class='S10'>(</span><span class='S11'>SCI_LINELENGTH</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>curLine</span><span class='S0'>&nbsp;</span> <span
class='S10'>-</span><span class='S0'>&nbsp;</span> <span class='S4'>1</span><span
class='S10'>);</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>if</span><span class='S0'>&nbsp;</span> <span
class='S10'>(</span><span class='S11'>prevLineLength</span><span class='S0'>&nbsp;</span> <span
class='S10'>&lt;</span><span class='S0'>&nbsp;</span> <span class='S5'>sizeof</span><span
class='S10'>(</span><span class='S11'>linebuf</span><span class='S10'>))</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>WORD</span><span
class='S0'>&nbsp;</span> <span class='S11'>buflen</span><span class='S0'>&nbsp;</span> <span
class='S10'>=</span><span class='S0'>&nbsp;</span> <span class='S5'>sizeof</span><span
class='S10'>(</span><span class='S11'>linebuf</span><span class='S10'>);</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>memcpy</span><span
class='S10'>(</span><span class='S11'>linebuf</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S10'>&amp;</span><span class='S11'>buflen</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S5'>sizeof</span><span
class='S10'>(</span><span class='S11'>buflen</span><span class='S10'>));</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>
SendEditor</span><span class='S10'>(</span><span class='S11'>EM_GETLINE</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S11'>curLine</span><span
class='S0'>&nbsp;</span> <span class='S10'>-</span><span class='S0'>&nbsp;</span> <span
class='S4'>1</span><span class='S10'>,</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S5'>reinterpret_cast</span><span class='S10'>&lt;</span><span
class='S11'>LPARAM</span><span class='S10'>&gt;(</span><span class='S5'>static_cast</span><span
class='S10'>&lt;</span><span class='S5'>char</span><span class='S0'>&nbsp;</span> <span
class='S10'>*&gt;(</span><span class='S11'>linebuf</span><span class='S10'>)));</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>linebuf</span><span
class='S10'>[</span><span class='S11'>prevLineLength</span><span class='S10'>]</span><span
class='S0'>&nbsp;</span> <span class='S10'>=</span><span class='S0'>&nbsp;</span> <span
class='S7'>'\0'</span><span class='S10'>;</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>for</span><span
class='S0'>&nbsp;</span> <span class='S10'>(</span><span class='S5'>int</span><span
class='S0'>&nbsp;</span> <span class='S11'>pos</span><span class='S0'>&nbsp;</span> <span
class='S10'>=</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S10'>;</span><span class='S0'>&nbsp;</span> <span class='S11'>linebuf</span><span
class='S10'>[</span><span class='S11'>pos</span><span class='S10'>];</span><span
class='S0'>&nbsp;</span> <span class='S11'>pos</span><span class='S10'>++)</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span
class='S5'>if</span><span class='S0'>&nbsp;</span> <span class='S10'>(</span><span
class='S11'>linebuf</span><span class='S10'>[</span><span class='S11'>pos</span><span
class='S10'>]</span><span class='S0'>&nbsp;</span> <span class='S10'>!=</span><span
class='S0'>&nbsp;</span> <span class='S7'>'&nbsp;'</span><span class='S0'>&nbsp;</span> <span
class='S10'>&amp;&amp;</span><span class='S0'>&nbsp;</span> <span class='S11'>
linebuf</span><span class='S10'>[</span><span class='S11'>pos</span><span
class='S10'>]</span><span class='S0'>&nbsp;</span> <span class='S10'>!=</span><span
class='S0'>&nbsp;</span> <span class='S7'>'\t'</span><span class='S10'>)</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S11'>linebuf</span><span class='S10'>[</span><span class='S11'>pos</span><span
class='S10'>]</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S7'>'\0'</span><span class='S10'>;</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S10'>}</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>
SendEditor</span><span class='S10'>(</span><span class='S11'>EM_REPLACESEL</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S5'>
reinterpret_cast</span><span class='S10'>&lt;</span><span class='S11'>LPARAM</span><span
class='S10'>&gt;(</span><span class='S5'>static_cast</span><span class='S10'>&lt;</span><span
class='S5'>char</span><span class='S0'>&nbsp;</span> <span class='S10'>*&gt;(</span><span
class='S11'>linebuf</span><span class='S10'>)));</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S10'>}</span><span class='S0'><br />
</span> <span class='S10'>}</span><br />
<p style="margin-bottom: 0in">
Of course, fancier handling could be implemented. For example, if the previous line was the
start of a control construct, the next line could be automatically indented one tab further.
(Assuming that is your indenting style.)
</p>
<h2>
Implementing Syntax Styling
</h2>
<p>
Syntax styling is handled by the SCN_STYLENEEDED notification. Scintilla keeps track of the
end of the styled text - this is retrieved with SCI_GETENDSTYLED. In response to the
SCN_STYLENEEDED notification, you should apply styles to the text from ENDSTYLED to the
position specified by the notification.
</p>
<p>
Here is the relevant portion of code from SciTE: (SciTE.cxx)
</p>
<span class='S5'>void</span><span class='S0'>&nbsp;</span> <span class='S11'>
SciTEWindow</span><span class='S10'>::</span><span class='S11'>Notify</span><span
class='S10'>(</span><span class='S11'>SCNotification</span><span class='S0'>&nbsp;</span> <span
class='S10'>*</span><span class='S11'>notification</span><span class='S10'>)</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>switch</span><span class='S0'>&nbsp;</span>
<span class='S10'>(</span><span class='S11'>notification</span><span
class='S10'>-&gt;</span><span class='S11'>nmhdr.code</span><span class='S10'>)</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>case</span><span class='S0'>&nbsp;</span>
<span class='S11'>SCN_STYLENEEDED</span><span class='S10'>:</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span
class='S5'>if</span><span class='S0'>&nbsp;</span> <span class='S10'>(</span><span
class='S11'>notification</span><span class='S10'>-&gt;</span><span
class='S11'>nmhdr.idFrom</span><span class='S0'>&nbsp;</span> <span class='S10'>==</span><span
class='S0'>&nbsp;</span> <span class='S11'>IDM_SRCWIN</span><span class='S10'>)</span><span
class='S0'>&nbsp;</span> <span class='S10'>{</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S5'>int</span><span class='S0'>&nbsp;</span> <span class='S11'>
endStyled</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span class='S10'>(</span><span
class='S11'>SCI_GETENDSTYLED</span><span class='S10'>);</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S5'>int</span><span class='S0'>&nbsp;</span> <span class='S11'>
lineEndStyled</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span class='S10'>(</span><span
class='S11'>EM_LINEFROMCHAR</span><span class='S10'>,</span><span class='S0'>&nbsp;</span>
<span class='S11'>endStyled</span><span class='S10'>);</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S11'>endStyled</span><span class='S0'>&nbsp;</span> <span class='S10'>
=</span><span class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span
class='S10'>(</span><span class='S11'>EM_LINEINDEX</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>lineEndStyled</span><span class='S10'>);</span><span
class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span>
<span class='S11'>Colourise</span><span class='S10'>(</span><span
class='S11'>endStyled</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>notification</span><span class='S10'>-&gt;</span><span
class='S11'>position</span><span class='S10'>);</span><br />
<p>
Colourize(start, end) retrieves the specified range of text and then calls ColourizeDoc in
keywords.cxx. It starts the process by calling:
</p>
&nbsp;&nbsp;&nbsp;&nbsp;<span class='S11'>SendMessage</span><span class='S10'>(</span><span
class='S11'>hwnd</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>SCI_STARTSTYLING</span><span class='S10'>,</span><span class='S0'>&nbsp;</span>
<span class='S11'>startPos</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S4'>31</span><span class='S10'>);</span><br />
<p>
and then for each token of the text, calling:
</p>
&nbsp;&nbsp;&nbsp;&nbsp;<span class='S11'>SendMessage</span><span class='S10'>(</span><span
class='S11'>hwnd</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>SCI_SETSTYLING</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>length</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>style</span><span class='S10'>);</span><br />
<p>
where style is a number from 0 to 31 whose appearance has been defined using the
SCI_STYLESET... messages.
</p>
<h2>
Implementing Calltips
</h2>
<p>
Again, the SCN_CHARADDED notification is used to catch when an opening parenthesis is added.
The preceding word can then be retrieved from the current line:
</p>
&nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>char</span><span class='S0'>&nbsp;</span> <span
class='S11'>linebuf</span><span class='S10'>[</span><span class='S4'>1000</span><span
class='S10'>];</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>int</span><span class='S0'>&nbsp;</span> <span
class='S11'>current</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span class='S10'>(</span><span
class='S11'>SCI_GETCURLINE</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S5'>sizeof</span><span class='S10'>(</span><span class='S11'>linebuf</span><span
class='S10'>),</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S5'>
reinterpret_cast</span><span class='S10'>&lt;</span><span class='S11'>LPARAM</span><span
class='S10'>&gt;(</span><span class='S5'>static_cast</span><span class='S10'>&lt;</span><span
class='S5'>char</span><span class='S0'>&nbsp;</span> <span class='S10'>*&gt;(</span><span
class='S11'>linebuf</span><span class='S10'>)));</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>int</span><span class='S0'>&nbsp;</span> <span
class='S11'>pos</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>SendEditor</span><span class='S10'>(</span><span
class='S11'>SCI_GETCURRENTPOS</span><span class='S10'>);</span><span class='S0'><br />
<br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>int</span><span class='S0'>&nbsp;</span> <span
class='S11'>startword</span><span class='S0'>&nbsp;</span> <span class='S10'>=</span><span
class='S0'>&nbsp;</span> <span class='S11'>current</span><span class='S0'>&nbsp;</span> <span
class='S10'>-</span><span class='S0'>&nbsp;</span> <span class='S4'>1</span><span
class='S10'>;</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>while</span><span class='S0'>&nbsp;</span>
<span class='S10'>(</span><span class='S11'>startword</span><span class='S0'>&nbsp;</span>
<span class='S10'>&gt;</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S0'>&nbsp;</span> <span class='S10'>&amp;&amp;</span><span class='S0'>&nbsp;</span>
<span class='S11'>isalpha</span><span class='S10'>(</span><span class='S11'>linebuf</span><span
class='S10'>[</span><span class='S11'>startword</span><span class='S0'>&nbsp;</span> <span
class='S10'>-</span><span class='S0'>&nbsp;</span> <span class='S4'>1</span><span
class='S10'>]))</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>
startword</span><span class='S10'>--;</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S11'>linebuf</span><span class='S10'>[</span><span
class='S11'>current</span><span class='S0'>&nbsp;</span> <span class='S10'>-</span><span
class='S0'>&nbsp;</span> <span class='S4'>1</span><span class='S10'>]</span><span
class='S0'>&nbsp;</span> <span class='S10'>=</span><span class='S0'>&nbsp;</span> <span
class='S7'>'\0'</span><span class='S10'>;</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>char</span><span class='S10'>*</span><span
class='S0'>&nbsp;</span> <span class='S11'>word</span><span class='S0'>&nbsp;</span> <span
class='S10'>=</span><span class='S0'>&nbsp;</span> <span class='S11'>linebuf</span><span
class='S0'>&nbsp;</span> <span class='S10'>+</span><span class='S0'>&nbsp;</span> <span
class='S11'>startword</span><span class='S10'>;</span><br />
<p>
Then if a calltip is available it can be displayed. The calltip appears immediately below
the position specified. The calltip can be multiple lines separated by newlines (\n).
</p>
&nbsp;&nbsp;&nbsp;&nbsp;<span class='S11'>pos</span><span class='S0'>&nbsp;</span> <span
class='S10'>=</span><span class='S0'>&nbsp;</span> <span class='S11'>SendMessage</span><span
class='S10'>(</span><span class='S11'>hwnd</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>SCI_GETCURRENTPOS</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S4'>0</span><span
class='S10'>);</span><span class='S0'><br />
</span> &nbsp;&nbsp;&nbsp;&nbsp;<span class='S11'>SendMessageText</span><span
class='S10'>(</span><span class='S11'>hwnd</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>SCI_CALLTIPSHOW</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S11'>pos</span><span
class='S0'>&nbsp;</span> <span class='S10'>-</span><span class='S0'>&nbsp;</span> <span
class='S11'>wordLen</span><span class='S0'>&nbsp;</span> <span class='S10'>-</span><span
class='S0'>&nbsp;</span> <span class='S4'>1</span><span class='S10'>,</span><span
class='S0'>&nbsp;</span> <span class='S11'>calltip</span><span class='S10'>);</span><br />
<p>
The calltip can be removed when a closing parenthesis is entered:
</p>
&nbsp;&nbsp;&nbsp;&nbsp;<span class='S5'>if</span><span class='S0'>&nbsp;</span> <span
class='S10'>(</span><span class='S11'>SendMessage</span><span class='S10'>(</span><span
class='S11'>hwnd</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S11'>SCI_CALLTIPACTIVE</span><span class='S10'>,</span><span class='S0'>&nbsp;</span>
<span class='S4'>0</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S4'>0</span><span class='S10'>))</span><span class='S0'><br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span> <span class='S11'>
SendMessage</span><span class='S10'>(</span><span class='S11'>hwnd</span><span
class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S11'>
SCI_CALLTIPCANCEL</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span
class='S4'>0</span><span class='S10'>,</span><span class='S0'>&nbsp;</span> <span class='S4'>
0</span><span class='S10'>);</span><br />
<p>
Obviously, it is up the application to look after supplying the appropriate calltip text.
</p>
<p>
SciTE goes one step further, counting the commas between arguments and highlighting the
corresponding part of the calltip. This code is in ContinueCallTip.
</p>
<p>
<i>Page contributed by Andrew McKinlay.</i>
</p>
</body>
</html>