mirror of
https://github.com/CnCNet/dummy-dplayx
synced 2024-07-08 20:46:50 +02:00
28 lines
1.2 KiB
C
28 lines
1.2 KiB
C
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#include <windows.h>
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BOOL WINAPI __declspec(dllexport) DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
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{
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if (fdwReason == DLL_PROCESS_ATTACH)
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{
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//Dune 2000 1.06 US
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if (memcmp((void *)0x00420000, (const char[]){0xFC,0xFF,0xFF,0x5F,0x5E,0x5D,0xB0,0x01,0x5B,0xC2}, 10) == 0)
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{
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DWORD oldProtect = PAGE_EXECUTE_READ;
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// jump over DirectPlayLobbyCreateA code since the game doesn't check the return value and continues
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short *dplaylobbyjmp = (short *)0x0049FCB6;
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VirtualProtect(dplaylobbyjmp, 2, PAGE_EXECUTE_READWRITE, &oldProtect);
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*dplaylobbyjmp = 0x19EB;
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VirtualProtect(dplaylobbyjmp, 2, oldProtect, &oldProtect);
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}
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}
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return TRUE;
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}
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HRESULT WINAPI fake_DirectPlayCreate(int a, int b, int c) { return E_FAIL; }
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HRESULT WINAPI fake_DirectPlayEnumerateA(int a, int b) { return E_FAIL; }
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HRESULT WINAPI fake_DirectPlayEnumerateW(int a, int b) { return E_FAIL; }
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HRESULT WINAPI fake_DirectPlayLobbyCreateA(int a, int b, int c, int d, int e) { return E_FAIL; }
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HRESULT WINAPI fake_DirectPlayLobbyCreateW(int a, int b, int c, int d, int e) { return E_FAIL; }
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HRESULT WINAPI fake_DirectPlayEnumerate(int a, int b) { return E_FAIL; }
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