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71b085c651
Copy the right dll into the same folder as w32knapi.exe (name must be w32kdll.dll) to make it work of different windows versions and ros of cause. Tested on win xp. svn path=/trunk/; revision=28531
78 lines
1.7 KiB
C
78 lines
1.7 KiB
C
#include "w32knapi.h"
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HINSTANCE g_hInstance;
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HMODULE g_hModule = NULL;
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static DWORD STDCALL
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IntSyscall(FARPROC proc, UINT cParams, PVOID pFirstParam)
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{
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DWORD ret;
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asm volatile
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(
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"pushfl;" // Save flags
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"movl %%ecx, %%eax;"
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"shl $2, %%eax;" // Calculate param size
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"subl %%eax, %%esp;" // Calculate new stack pos
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"movl %%esp, %%edi;" // Destination is stackpointer
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"cld;" // Clear direction flag
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"rep movsd;" // Copy params to the stack
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"call *%%edx;" // Call function
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"popfl;" // Restore flags
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: "=a" (ret)
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: "S" (pFirstParam), "c" (cParams), "d"(proc)
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: "%edi"
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);
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return ret;
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}
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DWORD
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Syscall(LPWSTR pszFunction, int cParams, void* pParams)
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{
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char szFunctionName[MAX_PATH];
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sprintf(szFunctionName, "%ls", pszFunction);
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FARPROC proc = (FARPROC)GetProcAddress(g_hModule, szFunctionName);
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if (!proc)
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{
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printf("Couldn't find proc: %s\n", szFunctionName);
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return FALSE;
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}
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return IntSyscall(proc, cParams, pParams);
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}
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BOOL
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IsFunctionPresent(LPWSTR lpszFunction)
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{
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char szFunctionName[MAX_PATH];
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sprintf(szFunctionName, "%ls", lpszFunction);
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return (GetProcAddress(g_hModule, szFunctionName) != NULL);
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}
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int APIENTRY
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WinMain(HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPSTR lpCmdLine,
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int nCmdShow)
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{
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g_hInstance = hInstance;
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printf("Win32k native API test\n");
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/* Convert to gui thread */
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// IsGUIThread(TRUE); <- does not exists on win2k
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g_hModule = LoadLibraryW(L"w32kdll.dll");
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if (!g_hModule)
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{
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printf("w32kdll.dll not found!\n");
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return FALSE;
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}
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printf("\n");
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return TestMain(L"w32knapi", L"win32k.sys Nt-Api");
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}
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