在Windows Mobile設備中捕獲按鍵序列

Question

我需要從Windows Mobile設備捕獲按鍵序列以觸發脅持事件。如果我的應用程序是唯一正在運行的應用程序，我將使用基本窗體事件處理程序來檢查按鍵按鈕，但由於應用程序可以啓動瀏覽器並使用SOTI，它還必須在主應用程序之外工作。

是否可以在可以發送Web服務消息的Windows Mobile設備上創建TSR應用程序（而在通信中）？

Answer 1

我寫了幾個調用不同函數的鍵盤鉤'應用程序'。你也可以用它來辦插座或web服務電話：http://www.hjgode.de/wp/?s=hook和http://www.hjgode.de/wp/?s=keytoggle

// The command below tells the OS that this EXE has an export function so we can use the global hook without a DLL 
__declspec(dllexport) LRESULT CALLBACK g_LLKeyboardHookCallback(
    int nCode,  // The hook code 
    WPARAM wParam, // The window message (WM_KEYUP, WM_KEYDOWN, etc.) 
    LPARAM lParam // A pointer to a struct with information about the pressed key 
) 
{ 
    /* typedef struct { 
    DWORD vkCode; 
    DWORD scanCode; 
    DWORD flags; 
    DWORD time; 
    ULONG_PTR dwExtraInfo; 
    } KBDLLHOOKSTRUCT, *PKBDLLHOOKSTRUCT;*/ 

    // Get out of hooks ASAP; no modal dialogs or CPU-intensive processes! 
    // UI code really should be elsewhere, but this is just a test/prototype app 
    // In my limited testing, HC_ACTION is the only value nCode is ever set to in CE 
    static int iActOn = HC_ACTION; 
    static bool isShifted=false; 

#ifdef DEBUG 
    static TCHAR str[MAX_PATH]; 
#endif 

    PKBDLLHOOKSTRUCT pkbhData = (PKBDLLHOOKSTRUCT)lParam; 
    //DWORD vKey; 
    if (nCode == iActOn) 
    { 
    //only process unflagged keys 
    if (pkbhData->flags != 0x00) 
     return CallNextHookEx(g_hInstalledLLKBDhook, nCode, wParam, lParam); 
    //check vkCode against forbidden key list 
    if(pForbiddenKeyList!=NULL) 
    { 
     BOOL bForbidden=false; 
     int j=0; 
     do{ 
      if(pForbiddenKeyList[j]==(BYTE)pkbhData->vkCode) 
      { 
       bForbidden=true; 
       DEBUGMSG(1, (L"suppressing forbidden key: 0x%0x\n",pkbhData->vkCode)); 
       continue; 
      } 
      j++; 
     }while(!bForbidden && pForbiddenKeyList[j]!=0x00); 
     if(bForbidden){ 
      return true; 
     } 
    } 

    SHORT sShifted = GetAsyncKeyState(VK_SHIFT); 
    if((sShifted & 0x800) == 0x800) 
     isShifted = true; 
    else 
     isShifted = false; 

    //check and toggle for Shft Key 
    //do not process shift key 
    if (pkbhData->vkCode == VK_SHIFT){ 
     DEBUGMSG(1, (L"Ignoring VK_SHIFT\n")); 
     return CallNextHookEx(g_hInstalledLLKBDhook, nCode, wParam, lParam); 
    } 

    //################################################################ 
    //check if the actual key is a match key including the shift state 
    if ((byte)pkbhData->vkCode == (byte)szVKeySeq[iMatched]){ 
     DEBUGMSG(1 , (L"==== char match\n")); 
     if (bCharShiftSeq[iMatched] == isShifted){ 
      DEBUGMSG(1 , (L"==== shift match\n")); 
     } 
     else{ 
      DEBUGMSG(1 , (L"==== shift not match\n")); 
     } 
    } 

    if(wParam == WM_KEYUP){ 
     DEBUGMSG(1, (L"---> szVKeySeq[iMatched] = 0x%02x\n", (byte)szVKeySeq[iMatched])); 

     if (((byte)pkbhData->vkCode == (byte)szVKeySeq[iMatched]) && (isShifted == bCharShiftSeq[iMatched])) { 

      //the first match? 
      if(iMatched==0){ 
       //start the timer and lit the LED 
       LedOn(LEDid,1); 
       tID=SetTimer(NULL, 0, matchTimeout, (TIMERPROC)Timer2Proc); 
      } 
      iMatched++; 

      DEBUGMSG(1, (L"iMatched is now=%i\n", iMatched)); 
      //are all keys matched 
      if (iMatched == iKeyCount){ 
       //show modeless dialog 
       DEBUGMSG(1, (L"FULL MATCH, starting ...\n")); 
       PostMessage(g_hWnd, WM_SHOWMYDIALOG, 0, 0); 
       //reset match pos and stop timer 
       DEBUGMSG(1, (L"FULL MATCH: Reset matching\n")); 
       LedOn(LEDid,0); 
       iMatched=0; //reset match pos 
       KillTimer(NULL, tID); 
       //return CallNextHookEx(g_hInstalledLLKBDhook, nCode, wParam, lParam); 
      } 
      //return -1; //do not forward key? 
     } 
     else 
     { 
      KillTimer(NULL, tID); 
      LedOn(LEDid,0); 
      iMatched=0; //reset match pos 
      DEBUGMSG(1, (L"FULL MATCH missed. Reseting matching\n")); 
     } 
    } //if wParam == WM_KEY.. 
    } 
    return CallNextHookEx(g_hInstalledLLKBDhook, nCode, wParam, lParam); 
} 

尋找，看起來一個按鍵序列的鉤子例如：http://code.google.com/p/keytoggleboot/source/browse/trunk/KeyToggleBoot/ReadMe.txt?spec=svn14&r=14

也有關於鍵盤鉤子的文章和帖子互聯網（即在codeproject）。

Answer 2

我最近需要從手持設備獲取的關鍵代碼，我剛剛創建一個空的項目有1個文本框，包含以下file，並添加這段代碼：

public partial class Form1 : Form 
{ 
    public Form1() 
    { 
     InitializeComponent(); 
     HookKeys x = new HookKeys(); 
     x.Start(); 
     x.HookEvent += new HookKeys.HookEventHandler(HookEvent); 
    } 

    private void HookEvent(HookEventArgs e, KeyBoardInfo keyBoardInfo) 
    { 
     textBox1.Text = "vkCode = " + keyBoardInfo.vkCode + Environment.NewLine + textBox1.Text; 
    } 
} 

工作了的Windows Mobile 6.5專業