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/*

    This file is part of a common library

    Copyright (C) 2002-6 Toby Thain, toby@telegraphics.com.au

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*/

#include <windows.h>

#include "compat_win.h"

#include "compat_win_resource.h"

typedef BOOL(__stdcall* f_GetVersionEx)(LPOSVERSIONINFOA lpVersionInformation);

Boolean Implements3264ResourceAPI() {

#ifdef _WIN64

        // 64 bit OS is never Win9x, so it must be WinNT

        return true;

#else

        HMODULE hLib;

        f_GetVersionEx fGetVersionEx;

        BOOL res;

        hLib = LoadLibrary(TEXT("KERNEL32.DLL"));

        if (!hLib) return 0;

        fGetVersionEx = (f_GetVersionEx)(void*)GetProcAddress(hLib, "GetVersionExA");

        if (fGetVersionEx != 0) {

                OSVERSIONINFOA osv;

                osv.dwOSVersionInfoSize = sizeof(osv);

                res = fGetVersionEx(&osv);

                FreeLibrary(hLib);

                // Windows NT 3.51 does implement GetVersionExA() and UpdateResourceA(), but it doesn't know about 64 bit images.

                // Windows NT 4.0 does implement UpdateResourceA(), and it can handle 64 bit images

                return res && osv.dwMajorVersion >= 4 && osv.dwPlatformId == VER_PLATFORM_WIN32_NT;

        }

        else {

                // Windows NT 3.1 doesn't have GetVersionExA(), doesn't implement UpdateResourceA(), and doesn't know about 64 bit images

                // Therefore, we conclude that if GetVersionExA() is missing, then we are on a system that requires manual resource processing

                FreeLibrary(hLib);

                return false;

        }

#endif

}

// ---------------------------------

typedef ULONGLONG(__stdcall* f_GetTickCount64)();

ULONGLONG _GetTickCount64() {

        HMODULE hLib;

        f_GetTickCount64 fGetTickCount64;

        ULONGLONG res;

        hLib = LoadLibrary(TEXT("KERNEL32.DLL"));

        if (!hLib) return 0;

        fGetTickCount64 = (f_GetTickCount64)(void*)GetProcAddress(hLib, "GetTickCount64");

        if (fGetTickCount64 != 0) {

                res = fGetTickCount64();

                FreeLibrary(hLib);

        } else {

                #pragma warning(suppress : 28159)

                res = (ULONGLONG)GetTickCount();

        }

        return res;

}

// ---------------------------------

HANDLE _BeginUpdateResource(

        LPCTSTR pFileName,

        BOOL    bDeleteExistingResources

) {

        #ifdef UNICODE

        return BeginUpdateResource(pFileName, bDeleteExistingResources);

        #else

        if (Implements3264ResourceAPI()) {

                return BeginUpdateResourceA(pFileName, bDeleteExistingResources);

        } else {

                return WineBeginUpdateResourceA(pFileName, bDeleteExistingResources);

        }

        #endif

}

// ---------------------------------

BOOL _EndUpdateResource(

        HANDLE hUpdate,

        BOOL   fDiscard

) {

        #ifdef UNICODE

        return EndUpdateResource(hUpdate, fDiscard);

        #else

        if (Implements3264ResourceAPI()) {

                return EndUpdateResourceA(hUpdate, fDiscard);

        } else {

                return WineEndUpdateResourceA(hUpdate, fDiscard);

        }

        #endif

}

// ---------------------------------

BOOL _UpdateResource(

        HANDLE  hUpdate,

        LPCTSTR lpType,

        LPCTSTR lpName,

        WORD    wLanguage,

        LPVOID  lpData,

        DWORD   cb

) {

        #ifdef UNICODE

        return UpdateResource(hUpdate, lpType, lpName, wLanguage, lpData, cb);

        #else

        if (Implements3264ResourceAPI()) {

                return UpdateResourceA(hUpdate, lpType, lpName, wLanguage, lpData, cb);

        } else {

                return WineUpdateResourceA(hUpdate, lpType, lpName, wLanguage, lpData, cb);

        }

        #endif

}

typedef void(__stdcall* f_GetNativeSystemInfo)(LPSYSTEM_INFO lpSystemInfo);

void _GetNativeSystemInfo(LPSYSTEM_INFO lpSystemInfo) {

        HMODULE hLib;

        f_GetNativeSystemInfo fGetNativeSystemInfo;

        hLib = LoadLibrary(TEXT("KERNEL32.DLL"));

        if (!hLib) return;

        fGetNativeSystemInfo = (f_GetNativeSystemInfo)(void*)GetProcAddress(hLib, "GetNativeSystemInfo");

        if (fGetNativeSystemInfo != 0) {

                fGetNativeSystemInfo(lpSystemInfo);

                FreeLibrary(hLib);

        }

        else {

                GetSystemInfo(lpSystemInfo);

        }

}

typedef BOOL(__stdcall* f_ImageRemoveCertificate)(HANDLE FileHandle, DWORD Index);

BOOL _ImageRemoveCertificate(HANDLE FileHandle, DWORD Index) {

        HMODULE hLib;

        f_ImageRemoveCertificate fImageRemoveCertificate;

        BOOL res = FALSE;

        hLib = LoadLibrary(TEXT("IMAGEHLP.DLL"));

        if (!hLib) return FALSE;

        fImageRemoveCertificate = (f_ImageRemoveCertificate)(void*)GetProcAddress(hLib, "ImageRemoveCertificate");

        if (fImageRemoveCertificate != 0) {

                res = fImageRemoveCertificate(FileHandle, Index);

                FreeLibrary(hLib);

        }

        return res;

}