SilentPatch/ResSock/dllmain.cpp

111 lines
3.3 KiB
C++

#define WIN32_LEAN_AND_MEAN
#define _CRT_SECURE_NO_WARNINGS
#include <windows.h>
#include <stdio.h>
#include <Shlwapi.h>
#include "MemoryMgr.h"
extern "C" HRESULT WINAPI DirectDrawCreateEx(GUID FAR *lpGUID, LPVOID *lplpDD, REFIID iid, IUnknown FAR *pUnkOuter)
{
static HRESULT (WINAPI *pDirectDrawCreateEx)(GUID FAR*, LPVOID*, REFIID, IUnknown FAR*);
static bool bLoaded = false;
if ( !bLoaded )
{
wchar_t wcSystemPath[MAX_PATH];
GetSystemDirectoryW(wcSystemPath, MAX_PATH);
PathAppendW(wcSystemPath, L"ddraw.dll");
HMODULE hLib = LoadLibraryW(wcSystemPath);
pDirectDrawCreateEx = (HRESULT(WINAPI*)(GUID FAR*, LPVOID*, REFIID, IUnknown FAR*))GetProcAddress(hLib, "DirectDrawCreateEx");
bLoaded = true;
}
return pDirectDrawCreateEx(lpGUID, lplpDD, iid, pUnkOuter);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
{
UNREFERENCED_PARAMETER(hinstDLL);
UNREFERENCED_PARAMETER(lpvReserved);
if ( fdwReason == DLL_PROCESS_ATTACH )
{
static char aNoDesktopMode[64];
using namespace MemoryVP;
if (*(DWORD*)0x5C1E70 == 0x53E58955)
{
// III 1.0
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x581E5E, desktop.right);
Patch<DWORD>(0x581E68, desktop.bottom);
Patch<BYTE>(0x581E72, 32);
Patch<const char*>(0x581EA8, aNoDesktopMode);
}
else if (*(DWORD*)0x5C2130 == 0x53E58955)
{
// III 1.1
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x58219E, desktop.right);
Patch<DWORD>(0x5821A8, desktop.bottom);
Patch<BYTE>(0x5821B2, 32);
Patch<const char*>(0x5821E8, aNoDesktopMode);
}
else if (*(DWORD*)0x5C6FD0 == 0x53E58955)
{
// III Steam
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x58208E, desktop.right);
Patch<DWORD>(0x582098, desktop.bottom);
Patch<BYTE>(0x5820A2, 32);
Patch<const char*>(0x5820D8, aNoDesktopMode);
}
else if (*(DWORD*)0x667BF0 == 0x53E58955)
{
// VC 1.0
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x600E7E, desktop.right);
Patch<DWORD>(0x600E88, desktop.bottom);
Patch<BYTE>(0x600E92, 32);
Patch<const char*>(0x600EC8, aNoDesktopMode);
}
else if (*(DWORD*)0x667C40 == 0x53E58955)
{
// VC 1.1
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x600E9E, desktop.right);
Patch<DWORD>(0x600EA8, desktop.bottom);
Patch<BYTE>(0x600EB2, 32);
Patch<const char*>(0x600EE8, aNoDesktopMode);
}
else if (*(DWORD*)0x666BA0 == 0x53E58955)
{
// VC Steam
RECT desktop;
GetWindowRect(GetDesktopWindow(), &desktop);
sprintf(aNoDesktopMode, "Cannot find %dx%dx32 video mode", desktop.right, desktop.bottom);
Patch<DWORD>(0x600ADE, desktop.right);
Patch<DWORD>(0x600AE8, desktop.bottom);
Patch<BYTE>(0x600AF2, 32);
Patch<const char*>(0x600B28, aNoDesktopMode);
}
}
return TRUE;
}