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_rdteb

Visual Studio 2010

Microsoft Specific

Reads the thread pointer register (IntR13) and returns its value, which is the base address of the current thread environment block (TEB).

Copy 
void* _rdteb();

The thread pointer.

Intrinsic

Architecture

_rdteb

IPF

This routine is only available as an intrinsic.

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Use NtCurrentTeb() for cross platform source code.

In WinNT.h

#ifdef _M_IA64
#define NtCurrentTeb() ((struct _TEB *)_rdtebex())
#if defined(_M_AMD64) && !defined(__midl)
__forceinline
struct _TEB *
NtCurrentTeb (
    VOID
    )
{
    return (struct _TEB *)__readgsqword(FIELD_OFFSET(NT_TIB, Self));
}
#if defined(_M_IX86) && !defined(MIDL_PASS)
#define PcTeb 0x18
#if (_MSC_FULL_VER >= 13012035)
__inline struct _TEB * NtCurrentTeb( void ) { return (struct _TEB *) (ULONG_PTR) __readfsdword (PcTeb); }
#else
#if _MSC_VER >= 1200
#pragma warning(push)
#endif
#pragma warning (disable:4035)        // disable 4035 (function must return something)
__inline struct _TEB * NtCurrentTeb( void ) { __asm mov eax, fs:[PcTeb] }
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