WPF 虚拟键盘

之前做了一款WPF虚拟键盘，调用Win32的API，可以模拟键盘事件。

现将代码分享如下：

按键布局如下：

   <Button Name="CmdTlide" Focusable="False" Click="Button_Click"  Style="{StaticResource InformButton}"  VerticalContentAlignment="Top" HorizontalContentAlignment="Left"  Width="60" Height="60">

                                    <StackPanel Orientation="Vertical" HorizontalAlignment="Left" VerticalAlignment="Top" >

                                        <TextBlock    HorizontalAlignment="Left" VerticalAlignment="Top"   ><Run Text="~"/></TextBlock>

                                        <TextBlock HorizontalAlignment="Left" VerticalAlignment="Bottom"   ><Run Text="'"/></TextBlock>

                                    </StackPanel>

                                </Button>

点击事件：

 private void Button_Click(object sender, RoutedEventArgs e)

        {

            System.Windows.Controls.Button keybtn = sender as System.Windows.Controls.Button;

            #region//First Row

            if (keybtn.Name == "CmdTlide")

            {

                addNumkeyINput(0xc0);

            }

            else if (keybtn.Name == "cmd1")

            {

                addNumkeyINput(0x31);

            }

            else if (keybtn.Name == "cmd2")

            {

                addNumkeyINput(0x32);

            }

            else if (keybtn.Name == "cmd3")

            {

                addNumkeyINput(0x33);

            }

            else if (keybtn.Name == "cmd4")

            {

                addNumkeyINput(0x34);

            }

            else if (keybtn.Name == "cmd5")

            {

                addNumkeyINput(0x35);

            }

            else if (keybtn.Name == "cmd6")

            {

                addNumkeyINput(0x36);



            }

            else if (keybtn.Name == "cmd7")

            {

                addNumkeyINput(0x37);

            }

            else if (keybtn.Name == "cmd8")

            {

                addNumkeyINput(0x38);

            }

            else if (keybtn.Name == "cmd9")

            {

                addNumkeyINput(0x39);

            }

            else if (keybtn.Name == "cmd0")

            {

                addNumkeyINput(0x30);



            }

            else if (keybtn.Name == "cmdminus")//-_

            {

                addNumkeyINput(0xbd);

            }

            else if (keybtn.Name == "cmd1")//+=

            {

                addNumkeyINput(0xbb);

            }

            else if (keybtn.Name == "cmdBackspace")//backspace

            {

                AddKeyBoardINput(0x08);

            }

            #endregion

            #region//Second Row

            else if (keybtn.Name == "CmdTab")

            {

                AddKeyBoardINput(0x09);

            }

            else if (keybtn.Name == "CmdQ")

            {

                AddKeyBoardINput(0x51);

            }

            else if (keybtn.Name == "Cmdw")

            {

                AddKeyBoardINput(0x57);



            }

            else if (keybtn.Name == "CmdE")

            {

                AddKeyBoardINput(0X45);



            }

            else if (keybtn.Name == "CmdR")

            {

                AddKeyBoardINput(0X52);



            }

            else if (keybtn.Name == "CmdT")

            {

                AddKeyBoardINput(0X54);



            }

            else if (keybtn.Name == "CmdY")

            {

                AddKeyBoardINput(0X59);



            }

            else if (keybtn.Name == "CmdU")

            {

                AddKeyBoardINput(0X55);



            }

            else if (keybtn.Name == "CmdI")

            {

                AddKeyBoardINput(0X49);



            }

            else if (keybtn.Name == "CmdO")

            {

                AddKeyBoardINput(0X4F);

            }

            else if (keybtn.Name == "CmdP")

            {

                AddKeyBoardINput(0X50);

            }

            else if (keybtn.Name == "CmdOpenCrulyBrace")

            {

                addNumkeyINput(0xdb);

            }

            else if (keybtn.Name == "CmdEndCrultBrace")

            {

                addNumkeyINput(0xdd);

            }

            else if (keybtn.Name == "CmdOR")

            {

                addNumkeyINput(0xdc);

            }

            #endregion

            #region///Third ROw



            else if (keybtn.Name == "CmdCapsLock")//caps lock

            {

                AddKeyBoardINput(0x14);

                if (checkImage.Visibility != Visibility.Visible)

                {

                    checkImage.Visibility = Visibility.Visible;

                }

                else

                {

                    checkImage.Visibility = Visibility.Hidden;

                }

            }

            else if (keybtn.Name == "CmdA")

            {

                AddKeyBoardINput(0x41);

            }

            else if (keybtn.Name == "CmdS")

            {

                AddKeyBoardINput(0x53);

            }

            else if (keybtn.Name == "CmdD")

            {

                AddKeyBoardINput(0x44);

            }

            else if (keybtn.Name == "CmdF")

            {

                AddKeyBoardINput(0x46);

            }

            else if (keybtn.Name == "CmdG")

            {

                AddKeyBoardINput(0x47);

            }

            else if (keybtn.Name == "CmdH")

            {

                AddKeyBoardINput(0x48);

            }

            else if (keybtn.Name == "CmdJ")

            {

                AddKeyBoardINput(0x4A);

            }

            else if (keybtn.Name == "CmdK")

            {

                AddKeyBoardINput(0X4B);

            }

            else if (keybtn.Name == "CmdL")

            {

                AddKeyBoardINput(0X4C);



            }

            else if (keybtn.Name == "CmdColon")//;:

            {

                addNumkeyINput(0xba);

            }

            else if (keybtn.Name == "CmdDoubleInvertedComma")//'"

            {

                addNumkeyINput(0xde);

            }

            else if (keybtn.Name == "CmdEnter")

            {

                AddKeyBoardINput(0x0d);

            }

            #endregion

            #region//Fourth Row

            else if (keybtn.Name == "CmdShift" || keybtn.Name == "CmdlShift")

            {

                if (CtrlFlag)

                {

                    CtrlFlag = false;

                    ShiftFlag = false;

                    changeInput();

                }

                else

                {

                    ShiftFlag = true;

                }

            }

            else if (keybtn.Name == "CmdZ")

            {



                AddKeyBoardINput(0X5A);



            }

            else if (keybtn.Name == "CmdX")

            {

                AddKeyBoardINput(0X58);



            }

            else if (keybtn.Name == "CmdC")

            {

                AddKeyBoardINput(0X43);



            }

            else if (keybtn.Name == "CmdV")

            {

                AddKeyBoardINput(0X56);



            }

            else if (keybtn.Name == "CmdB")

            {

                AddKeyBoardINput(0X42);



            }

            else if (keybtn.Name == "CmdN")

            {

                AddKeyBoardINput(0x4E);



            }

            else if (keybtn.Name == "CmdM")

            {

                AddKeyBoardINput(0x4D);

            }

            else if (keybtn.Name == "CmdLessThan")//<,

            {

                addNumkeyINput(0xbc);

            }

            else if (keybtn.Name == "CmdGreaterThan")//>.

            {

                addNumkeyINput(0xbe);

            }

            else if (keybtn.Name == "CmdQuestion")//?/

            {

                addNumkeyINput(0xbf);

            }



            else if (keybtn.Name == "CmdSpaceBar")

            {

                AddKeyBoardINput(0x20);

            }

            #endregion

            #region//Last row

            else if (keybtn.Name == "CmdCtrl" || keybtn.Name == "CmdlCtrl")//ctrl

            {

                if (ShiftFlag)

                {

                    ShiftFlag = false;

                    CtrlFlag = false;

                }

                else

                {

                    CtrlFlag = true;

                }

                //AddKeyBoardINput(0x11);

            }

            else if (keybtn.Name == "CmdpageUp")

            {

                AddKeyBoardINput(0x21);

            }

            else if (keybtn.Name == "CmdpageDown")

            {

                AddKeyBoardINput(0x22);

            }

            else if (keybtn.Name == "CmdClose")//关闭键盘

            {

                //this.Opacity = 0;

                // this.Close();

                //  this.keyboard.Visibility = Visibility.Hidden;

                //this.keyboard.Focusable = false;



                System.Windows.Application.Current.Shutdown();

            }

            #endregion

        }

触发键盘事件：

  private static void addNumkeyINput(byte input)

        {

            if (CtrlFlag)

            {

                CtrlFlag = false;

                ShiftFlag = false;

                keybd_event(input, 0, 0, 0);

                keybd_event(input, 0, 0x02, 0);

            }

            else

            {

                if (!ShiftFlag)

                {

                    keybd_event(input, 0, 0, 0);

                    keybd_event(input, 0, 0x02, 0);

                }

                else

                {

                    keybd_event(0x10, 0, 0, 0);//shift

                    keybd_event(input, 0, 0, 0);

                    keybd_event(input, 0, 0x02, 0);

                    keybd_event(0x10, 0, 0x02, 0);



                    ShiftFlag = false;

                }

            }

        }

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