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39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
#ifndef COMPAT_UNDOC_H
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#define COMPAT_UNDOC_H
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typedef struct _ReactOS_ShimData
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{
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DWORD dwReserved1[130];
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DWORD dwSize;
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DWORD dwMagic;
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DWORD dwReserved2[242];
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DWORD dwRosProcessCompatVersion;
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} ReactOS_ShimData;
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#define REACTOS_SHIMDATA_MAGIC 0xAC0DEDAB
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#define REACTOS_COMPATVERSION_UNINITIALIZED 0xfffffffe
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#define REACTOS_COMPATVERSION_IGNOREMANIFEST 0xffffffff
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// Returns values in the form of _WIN32_WINNT_VISTA, _WIN32_WINNT_WIN7 etc
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static
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inline
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DWORD RosGetProcessCompatVersion(VOID)
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{
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static DWORD g_CompatVersion = REACTOS_COMPATVERSION_UNINITIALIZED;
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if (g_CompatVersion == REACTOS_COMPATVERSION_UNINITIALIZED)
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{
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ReactOS_ShimData* pShimData = (ReactOS_ShimData*)NtCurrentPeb()->pShimData;
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if (pShimData && pShimData->dwMagic == REACTOS_SHIMDATA_MAGIC &&
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pShimData->dwSize == sizeof(ReactOS_ShimData))
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{
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g_CompatVersion = pShimData->dwRosProcessCompatVersion;
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}
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}
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return g_CompatVersion < REACTOS_COMPATVERSION_UNINITIALIZED ? g_CompatVersion : 0;
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}
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#endif // COMPAT_UNDOC_H
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