Author: Thomas Stutz
{
To color text in a TRichEdit, follow this two steps:
1) Select the text with the SelStart, SelLength properties.
2) Set the text attribtutes through the SelAttributes property.
1.Example:
Add a colored line to a TRichEdit:
}
procedure AddColoredLine(ARichEdit: TRichEdit; AText: string; AColor: TColor);
begin
with ARichEdit do
begin
SelStart := Length(Text);
SelAttributes.Color := AColor;
SelAttributes.Size := 8;
SelAttributes.Name := 'MS Sans Serif';
Lines.Add(AText);
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
AddColoredLine(RichEdit1, 'Hallo', clRed);
AddColoredLine(RichEdit1, 'Hallo', clGreen);
end;
{
2. Example:
To color the 5 characters.
}
procedure TForm1.Button1Click(Sender: TObject);
begin
RichEdit1.SelStart := 0;
RichEdit1.SelLength := 5;
RichEdit1.SelAttributes.Color := clBlue;
end;
{
3. Example: ( by www.delphimania.de)
To color a specified line with a color:
}
procedure RE_ColorLine(ARichEdit: TRichEdit; ARow: Integer; AColor: TColor);
begin
with ARichEdit do
begin
SelStart := SendMessage(Handle, EM_LINEINDEX, ARow - 1, 0);
SelLength := Length(Lines[ARow - 1]);
SelAttributes.Color := AColor;
SelLength := 0;
end;
end;
procedure TForm1.Button1Click(Sender: TObject);
begin
ZeileFaerben(RichEdit1, 4, clGreen);
end;