Title: How to use a custom caret
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
ExtCtrls, StdCtrls;
type
TForm1 = class(TForm)
Memo1: TMemo;
Image1: TImage;
Edit1: TEdit;
procedure Memo1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
procedure Edit1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.DFM}
procedure TForm1.Memo1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
CreateCaret(Memo1.Handle, Image1.Picture.Bitmap.Handle, 0, 0);
ShowCaret(Memo1.Handle);
end;
procedure TForm1.Edit1MouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
CreateCaret(Edit1.Handle, 0, 10, 4);
ShowCaret(Edit1.Handle);
end;
end.
{The form file source (*.dfm) }
object Form1: TForm1
Left = 192
Top = 107
Width = 544
Height = 375
Caption = 'Form1'
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'MS Sans Serif'
Font.Style = []
OldCreateOrder = False
PixelsPerInch = 96
TextHeight = 13
object Image1: TImage
Left = 12
Top = 4
Width = 16
Height = 16
AutoSize = True
Picture.Data = {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}
end
object Memo1: TMemo
Left = 12
Top = 36
Width = 149
Height = 149
Lines.Strings = ('Memo1')
TabOrder = 0
OnMouseDown = Memo1MouseDown
end
object Edit1: TEdit
Left = 220
Top = 60
Width = 121
Height = 21
TabOrder = 1
Text = 'Edit1'
OnMouseDown = Edit1MouseDown
end
end