Как в RichEdit изменить курсор ввода текста на свой.

← →
Turkirill (2004-08-12 13:32) [0]

Уважаемые Мастера подскажите плиз с примерчиками,
как в RichEdit изменить курсор ввода на свой.

← →
Turkirill (2004-08-12 15:09) [1]

Я нашел в DelphiWorld код для Edita,
как мне его подправить для Kol RichEdita?

unit caret1;

interface

{$IFDEF WIN32}
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls,
Forms, Dialogs, StdCtrls;
{$ELSE}
uses
WinTypes, WinProcs, Messages, SysUtils, Classes, Graphics,
Controls, Forms, Dialogs, StdCtrls;
{$ENDIF}

type
TForm1 = class(TForm)
Edit1: TEdit;
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
private
{Private declarations}
public
{Public declarations}
CaretBm: TBitmap;
CaretBmBk: TBitmap;
OldEditsWindowProc: Pointer;
end;

var
Form1: TForm1;

implementation

{$R *.DFM}

type
{$IFDEF WIN32}
WParameter = LongInt;
{$ELSE}
WParameter = Word;
{$ENDIF}
LParameter = LongInt;

{New windows procedure for the edit control}
function NewWindowProc(WindowHandle : hWnd;
TheMessage : WParameter; ParamW : WParameter;
ParamL : LParameter) : LongInt
{$IFDEF WIN32} stdcall; {$ELSE} ; export; {$ENDIF}
begin
{Call the old edit controls windows procedure}
NewWindowProc := CallWindowProc(Form1.OldEditsWindowProc,
WindowHandle, TheMessage, ParamW, ParamL);
if TheMessage = WM_SETFOCUS then
begin
CreateCaret(WindowHandle, Form1.CaretBm.Handle, 0, 0);
ShowCaret(WindowHandle);
end;
if TheMessage = WM_KILLFOCUS then
begin
HideCaret(WindowHandle);
DestroyCaret;
end;
if TheMessage = WM_KEYDOWN then
begin
if ParamW = VK_BACK then
CreateCaret(WindowHandle, Form1.CaretBmBk.Handle, 0, 0)
else
CreateCaret(WindowHandle, Form1.CaretBm.Handle, 0, 0);
ShowCaret(WindowHandle);
end;
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
{Create a smiling bitmap using the wingdings font}
CaretBm := TBitmap.Create;
CaretBm.Canvas.Font.name := "WingDings";
CaretBm.Canvas.Font.Height := Edit1.Font.Height;
CaretBm.Canvas.Font.Color := clWhite;
CaretBm.Width := CaretBm.Canvas.TextWidth("J") + 2;
CaretBm.Height := CaretBm.Canvas.TextHeight("J") + 2;
CaretBm.Canvas.Brush.Color := clBlue;
CaretBm.Canvas.FillRect(Rect(0, 0, CaretBm.Width,
CaretBm.Height));
CaretBm.Canvas.TextOut(1, 1, "J");
{Create a frowming bitmap using the wingdings font}
CaretBmBk := TBitmap.Create;
CaretBmBk.Canvas.Font.name := "WingDings";
CaretBmBk.Canvas.Font.Height := Edit1.Font.Height;
CaretBmBk.Canvas.Font.Color := clWhite;
CaretBmBk.Width := CaretBmBk.Canvas.TextWidth("L") + 2;
CaretBmBk.Height := CaretBmBk.Canvas.TextHeight("L") + 2;
CaretBmBk.Canvas.Brush.Color := clBlue;
CaretBmBk.Canvas.FillRect(Rect(0,0, CaretBmBk.Width,
CaretBmBk.Height));
CaretBmBk.Canvas.TextOut(1, 1, "L");
{Hook the edit controls window procedure}
OldEditsWindowProc := Pointer(SetWindowLong(Edit1.Handle,
GWL_WNDPROC, LongInt(@NewWindowProc)));
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
{Unhook the edit controls window procedure and clean up}
SetWindowLong(Edit1.Handle,GWL_WNDPROC,
LongInt(OldEditsWindowProc));
CaretBm.Free;
CaretBmBk.Free;
end;

end.

Берешь и правишь. Или хочешь чтоб все за тебя сделали?

Как в RichEdit изменить курсор ввода текста на свой. Найти похожие ветки