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mirror of https://github.com/valinet/ExplorerPatcher.git synced 2024-11-27 17:00:59 +01:00
ExplorerPatcher/ep_startmenu/ep_sm_main.c
2022-02-26 13:28:53 +02:00

74 lines
2.1 KiB
C

#include <Windows.h>
#include <valinet/hooking/iatpatch.h>
#include "ep_sm_forwards.h"
#pragma comment(lib, "Dbghelp.lib")
HMODULE hModule = NULL;
HMODULE hOrig = NULL;
wchar_t* (*pGetCmdArguments)(int*) = NULL;
SRWLOCK lockInstanced = { .Ptr = SRWLOCK_INIT };
BOOL bInstanced = FALSE;
BOOL start_GetProductInfo(DWORD dwOSMajorVersion, DWORD dwOSMinorVersion, DWORD dwSpMajorVersion, DWORD dwSpMinorVersion, PDWORD pdwReturnedProductType)
{
*pdwReturnedProductType = 119;
return TRUE;
}
void Init()
{
DWORD dwStartShowClassicMode = 0, dwSize = sizeof(DWORD);
RegGetValueW(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Explorer\\Advanced", L"Start_ShowClassicMode", RRF_RT_DWORD, NULL, &dwStartShowClassicMode, &dwSize);
if (dwStartShowClassicMode)
{
VnPatchIAT(GetModuleHandleW(NULL), "api-ms-win-core-sysinfo-l1-2-0.dll", "GetProductInfo", start_GetProductInfo);
}
HMODULE hMod;
GetModuleHandleExW(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS, hModule, &hMod);
bInstanced = TRUE;
}
#pragma comment(linker, "/export:?GetCmdArguments@Details@Platform@@YAPEAPEA_WPEAH@Z=GetCmdArguments,@130")
wchar_t* GetCmdArguments(int* a1)
{
AcquireSRWLockExclusive(&lockInstanced);
if (!hOrig)
{
hOrig = LoadLibraryW(L"wincorlib_orig.dll");
if (hOrig)
{
pGetCmdArguments = GetProcAddress(hOrig, "?GetCmdArguments@Details@Platform@@YAPEAPEA_WPEAH@Z");
}
}
if (pGetCmdArguments)
{
if (!bInstanced) Init();
ReleaseSRWLockExclusive(&lockInstanced);
return pGetCmdArguments(a1);
}
ReleaseSRWLockExclusive(&lockInstanced);
return NULL;
}
BOOL WINAPI DllMain(
_In_ HINSTANCE hinstDLL,
_In_ DWORD fdwReason,
_In_ LPVOID lpvReserved
)
{
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
DisableThreadLibraryCalls(hinstDLL);
hModule = hinstDLL;
break;
case DLL_THREAD_ATTACH:
break;
case DLL_THREAD_DETACH:
break;
case DLL_PROCESS_DETACH:
break;
}
return TRUE;
}