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.
143 lines
4.7 KiB
143 lines
4.7 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
|
|
<html><head><meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"><title>How to use the Scintilla Edit Control in windows?</title></head><body bgcolor="#ffffff">
|
|
<p><h2>How to use the Scintilla Edit Control in windows?</h2>
|
|
<p>
|
|
This should be a little step by step explanation how to use Scintilla in the windows environment.
|
|
</p>
|
|
</p>
|
|
<p><h2>How to create Scintilla Edit Control?</h2>
|
|
<p>
|
|
First of all, load the Scintilla DLL with something like:
|
|
</p>
|
|
<pre>
|
|
|
|
hmod = LoadLibrary("SciLexer.DLL");
|
|
if (hmod==NULL)
|
|
{
|
|
MessageBox(hwndParent,
|
|
"The Scintilla DLL could not be loaded.",
|
|
"Error loading Scintilla",
|
|
MB_OK | MB_ICONERROR);
|
|
}
|
|
</pre>
|
|
<p>
|
|
If the DLL was loaded successfully, then the DLL has registered (yes, by itself) a new
|
|
window class. The new class called "Scintilla" is the new scintilla edit control.
|
|
</p>
|
|
<p>
|
|
Now you can use this new control just like any other windows control.
|
|
</p>
|
|
<pre>
|
|
|
|
hwndScintilla = CreateWindowEx(0,
|
|
"Scintilla","", WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_CLIPCHILDREN,
|
|
10,10,500,400,hwndParent,(HMENU)GuiID, hInstance,NULL);
|
|
</pre>
|
|
<p>
|
|
Note the new window class name: "Scintilla". By reaching this point you actually included
|
|
a Scintilla Edit Control to your windows program.
|
|
</p>
|
|
</p>
|
|
<p><h2>How to control the Scintilla Edit Control?</h2>
|
|
<p>
|
|
You can control Scintilla by sending commands to the Edit Control.
|
|
There a 2 ways of doing this. A simple and fast way.
|
|
</p>
|
|
<p><h3>The simple way to control Scintilla</h3>
|
|
<p>
|
|
The simple way is just like with any other windows control. You can send messages to the
|
|
Scintilla Edit Control and receive notifications from the control. (Note that the notifications
|
|
are sent to the parent window of the Scintilla Edit Control.)
|
|
</p>
|
|
<p>
|
|
The Scintilla Edit Control knows a special message for each command.
|
|
To send commands to the Scintilla Edit Control you can use the SendMessage function.
|
|
</p>
|
|
<pre>
|
|
|
|
SendMessage(hwndScintilla,sci_command,wparam,lparam);
|
|
</pre>
|
|
<p>
|
|
like:
|
|
</p>
|
|
<pre>
|
|
|
|
SendMessage(hwndScintilla,SCI_CREATEDOCUMENT, 0, 0);
|
|
</pre>
|
|
<p>
|
|
Some of the commands will return a value and unused parameters should be set to NULL.
|
|
</p>
|
|
</p>
|
|
<p><h3>The fast way to control Scintilla</h3>
|
|
<p>
|
|
The fast way of controlling the Scintilla Edit Control is to call message handling function by yourself.
|
|
You can retrieve a pointer to the message handling function of the Scintilla Edit Control and
|
|
call it directly to execute a command. This way is much more faster than the SendMessage() way.
|
|
</p>
|
|
<p>
|
|
1st you have to use the SCI_GETDIRECTFUNCTION and SCI_GETDIRECTPOINTER commands to
|
|
retrieve the pointer to the function and a pointer which must be the first parameter when calling the retrieved
|
|
function pointer.
|
|
You have to do this with the SendMessage way :)
|
|
</p>
|
|
<p>
|
|
The whole thing has to look like this:
|
|
</p>
|
|
<pre>
|
|
|
|
int (*fn)(void*,int,int,int);
|
|
void * ptr;
|
|
int canundo;
|
|
|
|
fn = (int (__cdecl *)(void *,int,int,int))SendMessage(
|
|
hwndScintilla,SCI_GETDIRECTFUNCTION,0,0);
|
|
ptr = (void *)SendMessage(hwndScintilla,SCI_GETDIRECTPOINTER,0,0);
|
|
|
|
canundo = fn(ptr,SCI_CANUNDO,0,0);
|
|
</pre>
|
|
<p>
|
|
with "fn" as the function pointer to the message handling function of the Scintilla Control
|
|
and "ptr" as the pointer that must be used as 1st parameter.
|
|
The next parameters are the Scintilla Command with its two (optional) parameters.
|
|
</p>
|
|
|
|
</p>
|
|
<p><h3>How will I receive notifications?</h3>
|
|
<p>
|
|
Whenever an event occurs where Scintilla wants to inform you about something, the Scintilla Edit Control
|
|
will send notification to the parent window. This is done by a WM_NOTITY message.
|
|
When receiving that message, you have to look in the xxx struct for the actual message.
|
|
</p>
|
|
<p>
|
|
So in Scintillas parent window message handling function you have to include some code like this:
|
|
</p>
|
|
<pre>
|
|
NMHDR *lpnmhdr;
|
|
|
|
[...]
|
|
|
|
case WM_NOTIFY:
|
|
lpnmhdr = (LPNMHDR) lParam;
|
|
|
|
if(lpnmhdr->hwndFrom==hwndScintilla)
|
|
{
|
|
switch(lpnmhdr->code)
|
|
{
|
|
case SCN_CHARADDED:
|
|
/* Hey, Scintilla just told me that a new */
|
|
/* character was added to the Edit Control.*/
|
|
/* Now i do something cool with that char. */
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
</pre>
|
|
</p>
|
|
</p>
|
|
|
|
<p>
|
|
<i>Page contributed by Holger Schmidt.</i>
|
|
</p>
|
|
</body></html>
|
|
|