69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
/*This file is part of FFB Arcade Plugin.
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FFB Arcade Plugin is free software : you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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FFB Arcade Plugin 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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You should have received a copy of the GNU General Public License
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along with FFB Arcade Plugin.If not, see < https://www.gnu.org/licenses/>.
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*/
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#include "GRID.h"
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#include <Windows.h>
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#include <string>
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static bool __stdcall Out32(int a2, DWORD BytesReturned)
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{
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static char test[256];
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memset(test, 0, 256);
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sprintf(test, "hex print: %08X", BytesReturned);
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OutputDebugStringA(test);
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return 0;
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}
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static bool Hook(void * toHook, void * ourFunct, int len) {
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if (len < 5) {
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return false;
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}
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DWORD curProtection;
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VirtualProtect(toHook, len, PAGE_EXECUTE_READWRITE, &curProtection);
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memset(toHook, 0x90, len);
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DWORD relativeAddress = ((DWORD)ourFunct - (DWORD)toHook) - 5;
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*(BYTE*)toHook = 0xE9;
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*(DWORD*)((DWORD)toHook + 1) = relativeAddress;
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DWORD temp;
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VirtualProtect(toHook, len, curProtection, &temp);
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return true;
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}
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static DWORD jmpBackAddy;
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void GRID::FFBLoop(EffectConstants * constants, Helpers * helpers, EffectTriggers * triggers)
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{
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bool init = false;
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HMODULE hMod = GetModuleHandleA("inpout32.dll");
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if (hMod)
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{
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if (!init)
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{
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int hookLength = 6;
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DWORD hookAddress = (DWORD)GetProcAddress(GetModuleHandle(L"inpout32.dll"), "Out32");
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if (hookAddress)
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{
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jmpBackAddy = hookAddress + hookLength;
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Hook((void*)hookAddress, Out32, hookLength);
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init = true;
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}
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}
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}
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} |