和 TWMMouse 一致的消息結構有:
TWMLButtonDblClk {左鍵雙擊}
TWMLButtonDown {左鍵按下}
TWMLButtonUp {左鍵抬起}
TWMMButtonDblClk {中鍵雙擊}
TWMMButtonDown {中鍵按下}
TWMMButtonUp {中鍵抬起}
TWMMouseMove {鼠標移動}
TWMRButtonDblClk {右鍵雙擊}
TWMRButtonDown {右鍵按下}
TWMRButtonUp {右鍵抬起}
代碼文件:
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Memo1: TMemo;
CheckBox1: TCheckBox;
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
protected
procedure WMLButtonDblClk(var Message: TWMLButtonDblClk); message WM_LBUTTONDBLCLK;
procedure WMLButtonDown(var Message: TWMLButtonDown); message WM_LBUTTONDOWN;
procedure WMLButtonUp(var Message: TWMLButtonUp); message WM_LBUTTONUP;
procedure WMMButtonDblClk(var Message: TWMMButtonDblClk); message WM_MBUTTONDBLCLK;
procedure WMMButtonDown(var Message: TWMMButtonDown); message WM_MBUTTONDOWN;
procedure WMMButtonUp(var Message: TWMMButtonUp); message WM_MBUTTONUP;
procedure WMMouseMove(var Message: TWMMouseMove); message WM_MOUSEMOVE;
procedure WMRButtonDblClk(var Message: TWMRButtonDblClk); message WM_RBUTTONDBLCLK;
procedure WMRButtonDown(var Message: TWMRButtonDown); message WM_RBUTTONDOWN;
procedure WMRButtonUp(var Message: TWMRButtonUp); message WM_RBUTTONUP;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.Button1Click(Sender: TObject);
begin
Memo1.Clear;
end;
procedure TForm1.FormCreate(Sender: TObject);
begin
Memo1.Align := alLeft;
Memo1.ScrollBars := ssVertical;
Memo1.Clear;
Position := poScreenCenter;
CheckBox1.Caption := '接受鼠標移動消息';
Button1.Caption := '清空列表';
end;
procedure TForm1.WMLButtonDblClk(var Message: TWMLButtonDblClk);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標左鍵雙擊: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMLButtonDown(var Message: TWMLButtonDown);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標左鍵按下: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMLButtonUp(var Message: TWMLButtonUp);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標左鍵抬起: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMMButtonDblClk(var Message: TWMMButtonDblClk);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標中鍵雙擊: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMMButtonDown(var Message: TWMMButtonDown);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標中鍵按下: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMMButtonUp(var Message: TWMMButtonUp);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標中鍵抬起: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMMouseMove(var Message: TWMMouseMove);
var
x,y: Integer;
s: string;
begin
if not CheckBox1.Checked then Exit;
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標移動: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMRButtonDblClk(var Message: TWMRButtonDblClk);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標右鍵雙擊: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMRButtonDown(var Message: TWMRButtonDown);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標右鍵按下: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
procedure TForm1.WMRButtonUp(var Message: TWMRButtonUp);
var
x,y: Integer;
s: string;
begin
x := Message.XPos;
y := Message.YPos;
s := Format('鼠標右鍵抬起: %d,%d', [x,y]);
Memo1.Lines.Add(s);
Message.Result := 0;
end;
end.
窗體文件:
object Form1: TForm1
Left = 0
Top = 0
Caption = 'Form1'
ClIEntHeight = 206
ClIEntWidth = 321
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object Memo1: TMemo
Left = 8
Top = 8
Width = 185
Height = 89
Lines.Strings = (
'Memo1')
TabOrder = 0
end
object CheckBox1: TCheckBox
Left = 199
Top = 8
Width = 122
Height = 17
Caption = 'CheckBox1'
TabOrder = 1
end
object Button1: TButton
Left = 199
Top = 173
Width = 75
Height = 25
Caption = 'Button1'
TabOrder = 2
OnClick = Button1Click
end
end