ScintillaNET - Auto Code Indenting

private void Scintilla_InsertCheck(object sender, InsertCheckEventArgs e)
{
	if ((e.Text.EndsWith("" + Constants.vbCr) || e.Text.EndsWith("" + Constants.vbLf))) {
		int startPos = Scintilla.Lines(Scintilla.LineFromPosition(Scintilla.CurrentPosition)).Position;
		int endPos = e.Position;
		string curLineText = Scintilla.GetTextRange(startPos, (endPos - startPos)); //Text until the caret so that the whitespace is always equal in every line.
		
		Match indent = Regex.Match(curLineText, "^[ \\t]*");
		e.Text = (e.Text + indent.Value);
		if (Regex.IsMatch(curLineText, "{\\s*$")) {
			e.Text = (e.Text + Constants.vbTab);
		}
	}
}

private void Scintilla_CharAdded(object sender, CharAddedEventArgs e)
{
	//The '}' char.
	if (e.Char == 125) {
		int curLine = Scintilla.LineFromPosition(Scintilla.CurrentPosition);
		
		if (Scintilla.Lines(curLine).Text.Trim() == "}") { //Check whether the bracket is the only thing on the line.. For cases like "if() { }".
			SetIndent(Scintilla, curLine, GetIndent(Scintilla, curLine) - 4);
		}
	}
}

//Codes for the handling the Indention of the lines.
//They are manually added here until they get officially added to the Scintilla control.
#region "CodeIndent Handlers"
	const int SCI_SETLINEINDENTATION = 2126;
	const int SCI_GETLINEINDENTATION = 2127;
	private void SetIndent(ScintillaNET.Scintilla scin, int line, int indent)
	{
		scin.DirectMessage(SCI_SETLINEINDENTATION, new IntPtr(line), new IntPtr(indent));
	}
	private int GetIndent(ScintillaNET.Scintilla scin, int line)
	{
		return (scin.DirectMessage(SCI_GETLINEINDENTATION, new IntPtr(line), null).ToInt32);
	}
#endregion