Mobile 模拟按键

public const byte VK_NONAME = 0xFC; // 什么也不做
        public const byte VK_ESC = 0x1B; // Smartphone的回退键
        public const byte VK_F4 = 0x73; // Home Screen
        public const byte VK_APP6 = 0xC6; // Smartphone上锁定键盘
        public const byte VK_F22 = 0x85; // PocketPC上锁定键盘(VK_KEYLOCK)
        public const byte VK_F16 = 0x7F; // 出发扬声器
        public const byte VK_OFF = 0x7F; //电源键
        public const byte VK_TSOFT1 = 0x70;
        public const byte VK_TSOFT2 = 0x71;
        public const byte VK_TTALK = 0x72;
        public const byte VK_TEND = 0x73;

  /// <summary>
        /// 将按键送至全局键盘缓冲区
        /// </summary>
        /// <param name="key"></param>

        public static void SendKey(byte key)
        {
            //const byte KEYEVENTF_SILENT = 0x0004;
            const int KEYEVENTF_KEYUP = 0x02;
            const int KEYEVENTF_KEYDOWN = 0x00;
            keybd_event(key, 0, KEYEVENTF_KEYDOWN, 0);
            keybd_event(key, 0, KEYEVENTF_KEYUP, 0);
        }

        [DllImport("coredll", SetLastError = true)]
        private static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo);

 private void button1_Click(object sender, EventArgs e)
        {
            SendKey(VK_TTALK);
        }

Windows Mobile maintains a device–independent keyboard model that enables it to support a variety of keyboards. At the lowest level, each key on the keyboard generates a scan code when the key is pressed and released. The scan code is a hardware–dependent number that identifies the key. The keyboard driver translates or maps each scan code to a virtual key code. The virtual key code is a hardware–independent hexadecimal number that identifies the key. Because keyboard layouts vary from language to language, Windows Mobile offers only the core set of virtual key codes that are found on all keyboards. This core set includes English characters, numbers, and a few critical keys, such as the function and arrow keys. Keys that are not included in the core set also have virtual key code assignments, but their values vary from one keyboard layout to the next. You should depend only on the virtual key codes that are in the core set.

 Key Codes

The following table shows the symbolic constant names, hexadecimal values, and keyboard equivalents for the virtual key codes used by the Windows Mobile operating system. The codes are listed in numeric order. You can combine any of the codes with a modifier key to create a hot key.

A VK_code is a byte, and so there are only 256 VK_codes total. The virtual key codes listed in the "Virtual key codes" section below are shared with Windows Embedded CE. More virtual keys were required for functionality, and so many hex values are shared between both a traditional Windows Embedded CE value and a Windows Mobile–specific value.

The following table provides a list of the mappings between the traditional VK constants and the additional Windows Mobile–specific value.

Hexadecimal value	Windows Embedded CE constant	Shared Windows Mobile constant	Windows Mobile purpose
0x08	VK_BACK	VK_TBACK	Back.
0x0D	VK_RETURN	VK_TACTION	Action.
0x25	VK_LEFT	VK_TLEFT	Left.
0x26	VK_UP	VK_TUP	Up.
0x27	VK_RIGHT	VK_TRIGHT	Right.
0x28	VK_DOWN	VK_TDOWN	Down.
0x5B	VK_LWIN	VK_THOME	Home screen or Today screen
0x70	VK_F1	VK_TSOFT1	Softkey 1.
0x71	VK_F2	VK_TSOFT2	Softkey 2.
0x72	VK_F3	VK_TTALK	Talk
0x73	VK_F4	VK_TEND	End
0x75	VK_F6	VK_TVOLUMEUP	Volume Up.
0x76	VK_F7	VK_TVOLUMEDOWN	Volume Down.
0x77	VK_F8	VK_TSTAR	*
0x78	VK_F9	VK_TPOUND	#
0x79	VK_F10	VK_TRECORD	Record.
0x7A	VK_F11	VK_SYMBOL	Symbol (SYM) key.
0x7E	VK_F15	VK_END_ALL_DATA_CALLS	Disconnects all data calls without affecting the status of voice calls.
0x7F	VK_F16	VK_TSPEAKERPHONE_TOGGLE	Toggles speakerphone on and off.
0x80	VK_F17	VK_TFLIP	Flip.
0x81	VK_F18	VK_TPOWER	Power.
0x82	VK_F19	VK_REDKEY	Sent by a keypad that has a special red function key.
0x83	VK_F20	VK_ROCKER	Arrow keys came from a Rocker.
0x84	VK_F21	VK_DPAD	Arrow keys came from a d–pad.
0x85	VK_F22	VK_KEYLOCK	Key used to lock device.
0x86	VK_F23	VK_ACTION	Sent with VK_RETURN when doing Action on Windows Mobile 6 Classic rockers.
0x87	VK_F24	VK_VOICEDIAL	Key used to kick off voice dial recognition.

For more information about the d-pad, see D-pad Virtual Key Code Support. For more information about soft keys, see Soft Key Virtual Key Codes.

The following keys were undefined for Windows Embedded CE, but are overridden as application keys in Windows Mobile.

Hexadecimal value	Windows Mobile constant
0xC1	VK_APP_FIRST
0xC1	VK_APP1
0xC2	VK_APP2
0xC3	VK_APP3
0xC4	VK_APP4
0xC5	VK_APP5
0xC6	VK_APP6
0xC6	VK_APP_LAST

The VK_APP keys will only be recognized by the system if they are wrapped with VK_LWIN. The following code snippet demonstrates how to do this programmatically.

keybd_event(VK_LWIN, 0, KEYEVENTF_SILENT, 0);
GenKeyEvent(VK_APP1);
keybd_event(VK_LWIN, 0, KEYEVENTF_SILENT | KEYEVENTF_KEYUP, 0);