mirror of
https://github.com/libretro/scummvm.git
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94 lines
3.3 KiB
C++
94 lines
3.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "common/scummsys.h"
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// We need certain functions that are excluded by default
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#undef NONLS
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#include <windows.h>
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#include "backends/platform/sdl/win32/win32_wrapper.h"
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// VerSetConditionMask and VerifyVersionInfo didn't appear until Windows 2000,
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// so we need to check for them at runtime
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LONGLONG VerSetConditionMaskFunc(ULONGLONG dwlConditionMask, DWORD dwTypeMask, BYTE dwConditionMask) {
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typedef BOOL(WINAPI *VerSetConditionMaskFunction)(ULONGLONG conditionMask, DWORD typeMask, BYTE conditionOperator);
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VerSetConditionMaskFunction verSetConditionMask = (VerSetConditionMaskFunction)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "VerSetConditionMask");
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if (verSetConditionMask == NULL)
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return 0;
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return verSetConditionMask(dwlConditionMask, dwTypeMask, dwConditionMask);
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}
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BOOL VerifyVersionInfoFunc(LPOSVERSIONINFOEXA lpVersionInformation, DWORD dwTypeMask, DWORDLONG dwlConditionMask) {
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typedef BOOL(WINAPI *VerifyVersionInfoFunction)(LPOSVERSIONINFOEXA versionInformation, DWORD typeMask, DWORDLONG conditionMask);
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VerifyVersionInfoFunction verifyVersionInfo = (VerifyVersionInfoFunction)GetProcAddress(GetModuleHandle(TEXT("kernel32.dll")), "VerifyVersionInfoA");
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if (verifyVersionInfo == NULL)
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return FALSE;
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return verifyVersionInfo(lpVersionInformation, dwTypeMask, dwlConditionMask);
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}
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namespace Win32 {
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bool confirmWindowsVersion(int majorVersion, int minorVersion) {
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OSVERSIONINFOEX versionInfo;
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DWORDLONG conditionMask = 0;
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ZeroMemory(&versionInfo, sizeof(OSVERSIONINFOEX));
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versionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEX);
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versionInfo.dwMajorVersion = majorVersion;
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versionInfo.dwMinorVersion = minorVersion;
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conditionMask = VerSetConditionMaskFunc(conditionMask, VER_MAJORVERSION, VER_GREATER_EQUAL);
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conditionMask = VerSetConditionMaskFunc(conditionMask, VER_MINORVERSION, VER_GREATER_EQUAL);
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return VerifyVersionInfoFunc(&versionInfo, VER_MAJORVERSION | VER_MINORVERSION, conditionMask);
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}
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wchar_t *ansiToUnicode(const char *s) {
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DWORD size = MultiByteToWideChar(0, 0, s, -1, NULL, 0);
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if (size > 0) {
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LPWSTR result = new WCHAR[size];
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if (MultiByteToWideChar(0, 0, s, -1, result, size) != 0)
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return result;
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}
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return NULL;
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}
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char *unicodeToAnsi(const wchar_t *s) {
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DWORD size = WideCharToMultiByte(0, 0, s, -1, NULL, 0, 0, 0);
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if (size > 0) {
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char *result = new char[size];
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if (WideCharToMultiByte(0, 0, s, -1, result, size, 0, 0) != 0)
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return result;
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}
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return NULL;
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}
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}
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