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CONTEXT (x86 32-bit)

Contains processor-specific register data. The system uses CONTEXT structures to perform various internal operations. The structure definition varies for different processor architectures. This page applies to the 32-bit x86 architecture. The following table links to the structures for other architectures.

Architecture API reference page
x86 64-bit CONTEXT structure (x86 64-bit)
Arm32 CONTEXT structure (Arm32)
Arm64 ARM64_NT_CONTEXT structure

Syntax

typedef struct _CONTEXT {
  DWORD              ContextFlags;
  DWORD              Dr0;
  DWORD              Dr1;
  DWORD              Dr2;
  DWORD              Dr3;
  DWORD              Dr6;
  DWORD              Dr7;
  FLOATING_SAVE_AREA FloatSave;
  DWORD              SegGs;
  DWORD              SegFs;
  DWORD              SegEs;
  DWORD              SegDs;
  DWORD              Edi;
  DWORD              Esi;
  DWORD              Ebx;
  DWORD              Edx;
  DWORD              Ecx;
  DWORD              Eax;
  DWORD              Ebp;
  DWORD              Eip;
  DWORD              SegCs;
  DWORD              EFlags;
  DWORD              Esp;
  DWORD              SegSs;
  BYTE               ExtendedRegisters[MAXIMUM_SUPPORTED_EXTENSION];
} CONTEXT;

Members

ContextFlags

Dr0

Dr1

Dr2

Dr3

Dr6

Dr7

FloatSave

SegGs

SegFs

SegEs

SegDs

Edi

Esi

Ebx

Edx

Ecx

Eax

Ebp

Eip

SegCs

EFlags

Esp

SegSs

ExtendedRegisters[MAXIMUM_SUPPORTED_EXTENSION]

Requirements

Requirement Value
Header winnt.h