diff options
Diffstat (limited to 'src/corelib/global/qoperatingsystemversion_win.cpp')
| -rw-r--r-- | src/corelib/global/qoperatingsystemversion_win.cpp | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/corelib/global/qoperatingsystemversion_win.cpp b/src/corelib/global/qoperatingsystemversion_win.cpp index 798d985a76..eb58b60788 100644 --- a/src/corelib/global/qoperatingsystemversion_win.cpp +++ b/src/corelib/global/qoperatingsystemversion_win.cpp @@ -46,50 +46,17 @@ QT_BEGIN_NAMESPACE -#ifdef Q_OS_WINRT -static inline HMODULE moduleHandleForFunction(LPCVOID address) -{ - // This is a widely used, decades-old technique for retrieving the handle - // of a module and is effectively equivalent to GetModuleHandleEx - // (which is unavailable on WinRT) - MEMORY_BASIC_INFORMATION mbi = { 0, 0, 0, 0, 0, 0, 0 }; - if (VirtualQuery(address, &mbi, sizeof(mbi)) == 0) - return 0; - return reinterpret_cast<HMODULE>(mbi.AllocationBase); -} -#endif - static inline OSVERSIONINFOEX determineWinOsVersion() { OSVERSIONINFOEX result = { sizeof(OSVERSIONINFOEX), 0, 0, 0, 0, {'\0'}, 0, 0, 0, 0, 0}; #define GetProcAddressA GetProcAddress - - // GetModuleHandle is not supported in WinRT and linking to it at load time - // will not pass the Windows App Certification Kit... but it exists and is functional, - // so use some unusual but widely used techniques to get a pointer to it -#ifdef Q_OS_WINRT - // 1. Get HMODULE of kernel32.dll, using the address of some function exported by that DLL - HMODULE kernelModule = moduleHandleForFunction(reinterpret_cast<LPCVOID>(VirtualQuery)); - if (Q_UNLIKELY(!kernelModule)) - return result; - - // 2. Get pointer to GetModuleHandle so we can then load other arbitrary modules (DLLs) - typedef HMODULE(WINAPI *GetModuleHandleFunction)(LPCWSTR); - GetModuleHandleFunction pGetModuleHandle = reinterpret_cast<GetModuleHandleFunction>( - GetProcAddressA(kernelModule, "GetModuleHandleW")); - if (Q_UNLIKELY(!pGetModuleHandle)) - return result; -#else #define pGetModuleHandle GetModuleHandleW -#endif HMODULE ntdll = pGetModuleHandle(L"ntdll.dll"); if (Q_UNLIKELY(!ntdll)) return result; - // NTSTATUS is not defined on WinRT - typedef LONG NTSTATUS; typedef NTSTATUS (NTAPI *RtlGetVersionFunction)(LPOSVERSIONINFO); // RtlGetVersion is documented public API but we must load it dynamically |