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GetKeyNameText - 根据键盘消息获取按键名称

2008-09-11 09:27 591 查看
//My Sample Code

unit Unit1;

interface

uses

Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

Dialogs;

type

TForm1 = class(TForm)

procedure FormCreate(Sender: TObject);

procedure MyMsg(var msg: TWMKeyDown); message WM_KEYDOWN;

end;

var

Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);

begin

Canvas.Font.Size := 24;

Canvas.Font.Style := [fsBold];

Canvas.Font.Color := clRed;

Canvas.Brush.Color := clWhite;

end;

procedure TForm1.MyMsg(var msg: TWMKeyDown);

var

buf: array[0..31] of Char;

rect: TRect;

str: string;

begin

{获取}

GetKeyNameText(msg.KeyData, buf, Length(buf));

{画出来}

str := buf;

rect := ClientRect;

Canvas.FillRect(rect);

Canvas.TextRect(rect,10,10,str);

inherited;

end;

end.
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