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@ -30,6 +30,10 @@
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using namespace std;
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// Key in registry
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static string RootKey;
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static const uint32 KeyMaxLength = 1024;
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namespace NLMISC {
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void *CSystemUtils::s_window = NULL;
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@ -95,4 +99,254 @@ bool CSystemUtils::updateProgressBar(uint value, uint total)
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return true;
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}
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bool CSystemUtils::copyTextToClipboard(const ucstring &text)
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{
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if (!text.size()) return false;
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bool res = false;
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#ifdef NL_OS_WINDOWS
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if (OpenClipboard(NULL))
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{
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// check if unicode format is supported by clipboard
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bool isUnicode = (IsClipboardFormatAvailable(CF_UNICODETEXT) == TRUE);
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// allocates a buffer to copy text in global memory
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HGLOBAL mem = GlobalAlloc(GHND|GMEM_DDESHARE, (text.size()+1) * (isUnicode ? 2:1));
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if (mem)
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{
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// create a lock on this buffer
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void *hLock = GlobalLock(mem);
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// copy text to this buffer
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if (isUnicode)
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wcscpy((wchar_t*)hLock, (const wchar_t*)text.c_str());
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else
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strcpy((char*)hLock, text.toString().c_str());
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// unlock buffer
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GlobalUnlock(mem);
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// empty clipboard
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EmptyClipboard();
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// set new data to clipboard in the right format
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SetClipboardData(isUnicode ? CF_UNICODETEXT:CF_TEXT, mem);
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res = true;
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}
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CloseClipboard();
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}
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#endif
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return res;
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}
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bool CSystemUtils::pasteTextFromClipboard(ucstring &text)
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{
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bool res = false;
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#ifdef NL_OS_WINDOWS
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if (OpenClipboard(NULL))
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{
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// check if unicode format is supported by clipboard
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bool isUnicode = (IsClipboardFormatAvailable(CF_UNICODETEXT) == TRUE);
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// get data from clipboard (if not of this type, they are converted)
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// warning, this code can't be debuggued in VC++ IDE, hObj will be always NULL
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HANDLE hObj = GetClipboardData(isUnicode ? CF_UNICODETEXT:CF_TEXT);
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if (hObj)
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{
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// create a lock on clipboard data
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void *hLock = GlobalLock(hObj);
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if (hLock != NULL)
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{
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// retrieve clipboard data
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if (isUnicode)
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text = (const ucchar*)hLock;
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else
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text = (const char*)hLock;
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// unlock data
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GlobalUnlock(hObj);
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res = true;
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}
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}
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CloseClipboard();
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}
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#endif
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return res;
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}
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bool CSystemUtils::supportUnicode()
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{
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static bool init = false;
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static bool unicodeSupported = false;
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if (!init)
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{
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init = true;
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#ifdef NL_OS_WINDOWS
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OSVERSIONINFO osvi;
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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// get Windows version
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if (GetVersionEx(&osvi))
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{
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if (osvi.dwPlatformId == VER_PLATFORM_WIN32_NT)
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{
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// unicode is supported since Windows NT 4.0
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if (osvi.dwMajorVersion >= 4)
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{
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unicodeSupported = true;
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}
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}
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}
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#else
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unicodeSupported = true;
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#endif
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}
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return unicodeSupported;
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}
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bool CSystemUtils::isAzertyKeyboard()
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{
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#ifdef NL_OS_WINDOWS
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uint16 klId = uint16((uint32)GetKeyboardLayout(0) & 0xFFFF);
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// 0x040c is French, 0x080c is Belgian
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if (klId == 0x040c || klId == 0x080c)
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return true;
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#endif
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return false;
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}
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bool CSystemUtils::isScreensaverEnabled()
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{
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bool res = false;
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#ifdef NL_OS_WINDOWS
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// old code, is not working anymore
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// BOOL bRetValue;
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// SystemParametersInfoA(SPI_GETSCREENSAVEACTIVE, 0, &bRetValue, 0);
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// res = (bRetValue == TRUE);
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HKEY hKeyScreenSaver = NULL;
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LSTATUS lReturn = RegOpenKeyExA(HKEY_CURRENT_USER, TEXT("Control Panel\\Desktop"), 0, KEY_QUERY_VALUE, &hKeyScreenSaver);
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if (lReturn == ERROR_SUCCESS)
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{
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DWORD dwType = 0L;
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DWORD dwSize = KeyMaxLength;
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unsigned char Buffer[KeyMaxLength] = {0};
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lReturn = RegQueryValueExA(hKeyScreenSaver, TEXT("SCRNSAVE.EXE"), NULL, &dwType, NULL, &dwSize);
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// if SCRNSAVE.EXE is present, check also if it's empty
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if (lReturn == ERROR_SUCCESS)
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res = (Buffer[0] != '\0');
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}
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RegCloseKey(hKeyScreenSaver);
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#endif
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return res;
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}
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bool CSystemUtils::enableScreensaver(bool screensaver)
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{
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bool res = false;
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#ifdef NL_OS_WINDOWS
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res = (SystemParametersInfoA(SPI_SETSCREENSAVEACTIVE, screensaver ? TRUE:FALSE, NULL, 0) == TRUE);
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#endif
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return res;
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}
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std::string CSystemUtils::getRootKey()
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{
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return RootKey;
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}
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void CSystemUtils::setRootKey(const std::string &root)
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{
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RootKey = root;
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}
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string CSystemUtils::getRegKey(const string &Entry)
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{
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string ret;
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#ifdef NL_OS_WINDOWS
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HKEY hkey;
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if(RegOpenKeyEx(HKEY_CURRENT_USER, RootKey.c_str(), 0, KEY_READ, &hkey) == ERROR_SUCCESS)
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{
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DWORD dwType = 0L;
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DWORD dwSize = KeyMaxLength;
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unsigned char Buffer[KeyMaxLength];
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if(RegQueryValueEx(hkey, Entry.c_str(), NULL, &dwType, Buffer, &dwSize) != ERROR_SUCCESS)
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{
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nlwarning("Can't get the reg key '%s'", Entry.c_str());
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}
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else
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{
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ret = (char*)Buffer;
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}
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RegCloseKey(hkey);
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}
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else
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{
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nlwarning("Can't get the reg key '%s'", Entry.c_str());
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}
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#endif
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return ret;
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}
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bool CSystemUtils::setRegKey(const string &ValueName, const string &Value)
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{
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bool res = false;
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#ifdef NL_OS_WINDOWS
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HKEY hkey;
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DWORD dwDisp;
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if (RegCreateKeyExA(HKEY_CURRENT_USER, RootKey.c_str(), 0, "", REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &hkey, &dwDisp) == ERROR_SUCCESS)
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{
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if (RegSetValueExA(hkey, ValueName.c_str(), 0L, REG_SZ, (const BYTE *)Value.c_str(), (DWORD)(Value.size())+1) == ERROR_SUCCESS)
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res = true;
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RegCloseKey(hkey);
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}
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else
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{
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nlwarning("Can't set the reg key '%s' '%s'", ValueName.c_str(), Value.c_str());
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}
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#endif
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return res;
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}
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uint CSystemUtils::getCurrentColorDepth()
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{
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uint depth = 0;
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#ifdef NL_OS_WINDOWS
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HWND desktopWnd = GetDesktopWindow();
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if (desktopWnd)
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{
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HDC desktopDC = GetWindowDC(desktopWnd);
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if (desktopDC)
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{
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depth = (uint) GetDeviceCaps(desktopDC, BITSPIXEL);
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ReleaseDC(desktopWnd, desktopDC);
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}
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}
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#else
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Display *display = XOpenDisplay(NULL);
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if (display)
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{
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depth = (uint) DefaultDepth(display, DefaultScreen(display));
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XCloseDisplay(display);
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}
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#endif
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return depth;
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}
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} // NLMISC
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kervala
15 years ago