398
399 // Increase the buffer size for 1 additional null-terminating character.
400 bytesCopied += sizeof(TCHAR);
401 TCHAR* tabTipFilePath = new TCHAR[bytesCopied / sizeof(TCHAR)];
402 ::memset(tabTipFilePath, 0, bytesCopied);
403
404 DWORD oldBytesCopied = bytesCopied;
405 if (::RegQueryValueEx(hTabTipCoKey, NULL, NULL, NULL,
406 (LPBYTE)tabTipFilePath, &bytesCopied) == ERROR_SUCCESS) {
407 const TCHAR searchedStr[] = _T("%CommonProgramFiles%");
408 const size_t searchedStrLen = ::_tcslen(searchedStr);
409 int searchedStrStartIndex = -1;
410
411 TCHAR* commonFilesDirPath = NULL;
412 DWORD commonFilesDirPathLen = 0;
413
414 // Check, if '%CommonProgramFiles%' string is present in the defined
415 // path of the touch keyboard executable.
416 TCHAR* const searchedStrStart = ::_tcsstr(tabTipFilePath, searchedStr);
417 if (searchedStrStart != NULL) {
418 searchedStrStartIndex = searchedStrStart - tabTipFilePath;
419
420 // Get value of 'CommonProgramFiles' environment variable, if the
421 // file path of the touch keyboard executable was found in 32-bit
422 // registry view, otherwise get value of 'CommonProgramW6432'.
423 const TCHAR envVar32BitName[] = _T("CommonProgramFiles");
424 const TCHAR envVar64BitName[] = _T("CommonProgramW6432");
425 const TCHAR* envVarName = (regViewWithTabTipCoKey == WOW64_32BIT ?
426 envVar32BitName : envVar64BitName);
427
428 DWORD charsStored = ::GetEnvironmentVariable(envVarName, NULL, 0);
429 if (charsStored > 0) {
430 commonFilesDirPath = new TCHAR[charsStored];
431 ::memset(commonFilesDirPath, 0, charsStored * sizeof(TCHAR));
432
433 DWORD oldCharsStored = charsStored;
434 if (((charsStored = ::GetEnvironmentVariable(envVarName,
435 commonFilesDirPath, charsStored)) > 0) &&
436 (charsStored <= oldCharsStored)) {
437 commonFilesDirPathLen = charsStored;
438 } else {
439 delete[] commonFilesDirPath;
440 commonFilesDirPath = NULL;
441 }
442 }
443 }
444
445 // Calculate 'm_touchKbrdExeFilePath' length in characters including
446 // the null-terminating character.
447 DWORD exeFilePathLen = oldBytesCopied / sizeof(TCHAR);
448 if (commonFilesDirPathLen > 0) {
449 exeFilePathLen = exeFilePathLen - searchedStrLen +
450 commonFilesDirPathLen;
451 }
452
453 if (m_touchKbrdExeFilePath != NULL) {
454 delete[] m_touchKbrdExeFilePath;
455 m_touchKbrdExeFilePath = NULL;
456 }
457 m_touchKbrdExeFilePath = new TCHAR[exeFilePathLen];
458 ::memset(m_touchKbrdExeFilePath, 0, exeFilePathLen * sizeof(TCHAR));
459
460 if (commonFilesDirPathLen > 0) {
461 ::_tcsncpy_s(m_touchKbrdExeFilePath, exeFilePathLen, tabTipFilePath,
462 searchedStrStartIndex);
463 DWORD charsCopied = searchedStrStartIndex;
464
465 ::_tcsncpy_s(m_touchKbrdExeFilePath + charsCopied,
466 exeFilePathLen - charsCopied, commonFilesDirPath,
467 commonFilesDirPathLen);
468 charsCopied += commonFilesDirPathLen;
469
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398
399 // Increase the buffer size for 1 additional null-terminating character.
400 bytesCopied += sizeof(TCHAR);
401 TCHAR* tabTipFilePath = new TCHAR[bytesCopied / sizeof(TCHAR)];
402 ::memset(tabTipFilePath, 0, bytesCopied);
403
404 DWORD oldBytesCopied = bytesCopied;
405 if (::RegQueryValueEx(hTabTipCoKey, NULL, NULL, NULL,
406 (LPBYTE)tabTipFilePath, &bytesCopied) == ERROR_SUCCESS) {
407 const TCHAR searchedStr[] = _T("%CommonProgramFiles%");
408 const size_t searchedStrLen = ::_tcslen(searchedStr);
409 int searchedStrStartIndex = -1;
410
411 TCHAR* commonFilesDirPath = NULL;
412 DWORD commonFilesDirPathLen = 0;
413
414 // Check, if '%CommonProgramFiles%' string is present in the defined
415 // path of the touch keyboard executable.
416 TCHAR* const searchedStrStart = ::_tcsstr(tabTipFilePath, searchedStr);
417 if (searchedStrStart != NULL) {
418 searchedStrStartIndex = static_cast<int>(searchedStrStart - tabTipFilePath);
419
420 // Get value of 'CommonProgramFiles' environment variable, if the
421 // file path of the touch keyboard executable was found in 32-bit
422 // registry view, otherwise get value of 'CommonProgramW6432'.
423 const TCHAR envVar32BitName[] = _T("CommonProgramFiles");
424 const TCHAR envVar64BitName[] = _T("CommonProgramW6432");
425 const TCHAR* envVarName = (regViewWithTabTipCoKey == WOW64_32BIT ?
426 envVar32BitName : envVar64BitName);
427
428 DWORD charsStored = ::GetEnvironmentVariable(envVarName, NULL, 0);
429 if (charsStored > 0) {
430 commonFilesDirPath = new TCHAR[charsStored];
431 ::memset(commonFilesDirPath, 0, charsStored * sizeof(TCHAR));
432
433 DWORD oldCharsStored = charsStored;
434 if (((charsStored = ::GetEnvironmentVariable(envVarName,
435 commonFilesDirPath, charsStored)) > 0) &&
436 (charsStored <= oldCharsStored)) {
437 commonFilesDirPathLen = charsStored;
438 } else {
439 delete[] commonFilesDirPath;
440 commonFilesDirPath = NULL;
441 }
442 }
443 }
444
445 // Calculate 'm_touchKbrdExeFilePath' length in characters including
446 // the null-terminating character.
447 DWORD exeFilePathLen = oldBytesCopied / sizeof(TCHAR);
448 if (commonFilesDirPathLen > 0) {
449 exeFilePathLen = exeFilePathLen - static_cast<DWORD>(searchedStrLen) +
450 commonFilesDirPathLen;
451 }
452
453 if (m_touchKbrdExeFilePath != NULL) {
454 delete[] m_touchKbrdExeFilePath;
455 m_touchKbrdExeFilePath = NULL;
456 }
457 m_touchKbrdExeFilePath = new TCHAR[exeFilePathLen];
458 ::memset(m_touchKbrdExeFilePath, 0, exeFilePathLen * sizeof(TCHAR));
459
460 if (commonFilesDirPathLen > 0) {
461 ::_tcsncpy_s(m_touchKbrdExeFilePath, exeFilePathLen, tabTipFilePath,
462 searchedStrStartIndex);
463 DWORD charsCopied = searchedStrStartIndex;
464
465 ::_tcsncpy_s(m_touchKbrdExeFilePath + charsCopied,
466 exeFilePathLen - charsCopied, commonFilesDirPath,
467 commonFilesDirPathLen);
468 charsCopied += commonFilesDirPathLen;
469
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