Delphi 2010 新增功能之: 软键盘、触摸键盘(TTouchKeyboard)

本例效果动画图(因不是触摸屏, 只能用鼠标测试一下):

---

代码文件:

---

unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls, Keyboard, TeCanvas;

type
  TForm1 = class(TForm)
    TouchKeyboard1: TTouchKeyboard;
    Edit1: TEdit;
    Memo1: TMemo;
    CheckBox1: TCheckBox;
    CheckBox2: TCheckBox;
    CheckBox3: TCheckBox;
    ButtonColor1: TButtonColor;
    ButtonColor2: TButtonColor;
    procedure FormCreate(Sender: TObject);
    procedure CheckBox1Click(Sender: TObject);
    procedure CheckBox2Click(Sender: TObject);
    procedure CheckBox3Click(Sender: TObject);
    procedure ButtonColor1Click(Sender: TObject);
    procedure ButtonColor2Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

//是否要背景
procedure TForm1.CheckBox1Click(Sender: TObject);
begin
  case CheckBox1.Checked of
    True: TouchKeyboard1.DrawingStyle := TCustomTouchKeyboard.TDrawingStyle.dsGradient;
    False: TouchKeyboard1.DrawingStyle := TCustomTouchKeyboard.TDrawingStyle.dsNormal;
  end; {注意 TDrawingStyle 类型是定义在 TCustomTouchKeyboard 内部的}

  case CheckBox1.Checked of
    True: CheckBox1.Caption := 'DrawingStyle := dsGradient';
    False: CheckBox1.Caption := 'DrawingStyle := dsNormal';
  end;
end;

//背景过渡色 - 起始色
procedure TForm1.ButtonColor1Click(Sender: TObject);
begin
  TouchKeyboard1.GradientStart := TButtonColor(Sender).SymbolColor;
end;

//背景过渡色 - 终止色
procedure TForm1.ButtonColor2Click(Sender: TObject);
begin
  TouchKeyboard1.GradientEnd := TButtonColor(Sender).SymbolColor;
end;

//大小键盘切换
procedure TForm1.CheckBox2Click(Sender: TObject);
begin
  case CheckBox2.Checked of
    True: begin
      TouchKeyboard1.Layout := 'NumPad';
      TouchKeyboard1.Width := 180;
      TouchKeyboard1.Height := 150;
      CheckBox2.Caption := 'Layout := NumPad';
    end;
    False: begin
      TouchKeyboard1.Layout := 'Standard';
      TouchKeyboard1.Width := 550;
      TouchKeyboard1.Height := 180;
      CheckBox2.Caption := 'Layout := Standard';
    end; {注意: 这里的 Layout 属性是个字符串}
  end;
end;

//更换键名显示, 这在设计时通过 KeyCaptions 属性调整更方便
procedure TForm1.CheckBox3Click(Sender: TObject);
begin
  case CheckBox3.Checked of
    True: begin
      TouchKeyboard1.CaptionOverrides.SetCaption('Esc', '退出');
      TouchKeyboard1.CaptionOverrides.SetCaption('Backspace', '退格');
      TouchKeyboard1.CaptionOverrides.SetCaption('Del', '删除');
      TouchKeyboard1.CaptionOverrides.SetCaption('Enter', '回车');
      {Esc Backspace Tab Del Caps Enter LeftShift RightShift LeftCtrl LeftAlt RightAlt RightCtrl}
    end;
    False: TouchKeyboard1.CaptionOverrides.Clear;
  end;
  TouchKeyboard1.Redraw; {重绘}
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Memo1.Font.Color := clBlue;
  Memo1.Font.Size := 12;
  Memo1.ScrollBars := ssBoth;

  Edit1.Font.Color := clRed;
  Edit1.Font.Size := 12;

  CheckBox1.Caption := '背景色';
  CheckBox2.Caption := '大小键盘切换';
  CheckBox3.Caption := '功能键重命名';
end;

end.

窗体文件:

---

object Form1: TForm1
  Left = 0
  Top = 0
  Caption = 'Form1'
  ClientHeight = 336
  ClientWidth = 566
  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 TouchKeyboard1: TTouchKeyboard
    Left = 8
    Top = 148
    Width = 550
    Height = 180
    GradientEnd = clSilver
    GradientStart = clGray
    Layout = 'Standard'
  end
  object Memo1: TMemo
    Left = 8
    Top = 43
    Width = 297
    Height = 99
    Lines.Strings = (
      'Memo1')
    TabOrder = 1
  end
  object Edit1: TEdit
    Left = 8
    Top = 8
    Width = 297
    Height = 21
    TabOrder = 2
    Text = 'Edit1'
  end
  object ButtonColor1: TButtonColor
    Left = 327
    Top = 43
    Width = 102
    Caption = 'ButtonColor1'
    TabOrder = 3
    OnClick = ButtonColor1Click
  end
  object ButtonColor2: TButtonColor
    Left = 448
    Top = 43
    Width = 102
    Caption = 'ButtonColor2'
    TabOrder = 4
    OnClick = ButtonColor2Click
  end
  object CheckBox1: TCheckBox
    Left = 327
    Top = 10
    Width = 223
    Height = 17
    Caption = 'CheckBox1'
    TabOrder = 5
    OnClick = CheckBox1Click
  end
  object CheckBox2: TCheckBox
    Left = 327
    Top = 88
    Width = 194
    Height = 17
    Caption = 'CheckBox2'
    TabOrder = 6
    OnClick = CheckBox2Click
  end
  object CheckBox3: TCheckBox
    Left = 327
    Top = 111
    Width = 194
    Height = 17
    Caption = 'CheckBox3'
    TabOrder = 7
    OnClick = CheckBox3Click
  end
end