IDebugSymbols3::ReadTypedDataPhysical method (dbgeng.h)

Article
02/22/2024

The ReadTypedDataPhysical method reads the value of a variable from the target computer's physical memory.

Syntax

HRESULT ReadTypedDataPhysical(
  [in]            ULONG64 Offset,
  [in]            ULONG64 Module,
  [in]            ULONG   TypeId,
  [out]           PVOID   Buffer,
  [in]            ULONG   BufferSize,
  [out, optional] PULONG  BytesRead
);

Parameters

[in] Offset

Specifies the physical address in the target computer's memory of the variable to be read.

[in] Module

Specifies the base address of the module containing the type of the variable.

[in] TypeId

Specifies the type ID of the type of the variable.

[out] Buffer

Receives the data that was read.

[in] BufferSize

Specifies the size in bytes of the buffer Buffer. This is the maximum number of bytes that will be read.

[out, optional] BytesRead

Receives the number of bytes that were read. If BytesRead is NULL, this information is not returned.

Return value

Return code	Description
S_OK	The method was successful.
S_FALSE	The method was successful. However, the buffer Buffer was not large enough to hold all the data and it was truncated.

This method may also return error values. See Return Values for more details.

Remarks

This method is only available in kernel mode debugging.

The number of bytes this method attempts to read is the smaller of the size of the buffer and the size of the variable.

This is a convenience method. The same result can be obtained by calling GetTypeSize and ReadPhysical.

For more information about types, see Types.

Requirements

Requirement	Value
Target Platform	Desktop
Header	dbgeng.h (include Dbgeng.h)

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