ImageDirectoryEntryToDataEx Function

Locates a directory entry within the image header and returns the address of the data for the directory entry. This function returns the section header for the data located, if one exists.

PVOID WINAPI ImageDirectoryEntryToDataEx(
  __in          PVOID Base,
  __in          BOOLEAN MappedAsImage,
  __in          USHORT DirectoryEntry,
  __out         PULONG Size,
  __out         PIMAGE_SECTION_HEADER* FoundHeader
);

Parameters

Base

The base address of the image or data file.

MappedAsImage

If the flag is TRUE, the file is mapped by the system as an image. If this flag is FALSE, the file is mapped as a data file by the MapViewOfFile function.

DirectoryEntry

The directory entry to be located. The value must be one of the following values.

Value	Meaning
IMAGE_DIRECTORY_ENTRY_ARCHITECTURE 7	Architecture-specific data
IMAGE_DIRECTORY_ENTRY_BASERELOC 5	Base relocation table
IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT 11	Bound import directory
IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR 14	COM descriptor table
IMAGE_DIRECTORY_ENTRY_DEBUG 6	Debug directory
IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT 13	Delay import table
IMAGE_DIRECTORY_ENTRY_EXCEPTION 3	Exception directory
IMAGE_DIRECTORY_ENTRY_EXPORT 0	Export directory
IMAGE_DIRECTORY_ENTRY_GLOBALPTR 8	The relative virtual address of global pointer
IMAGE_DIRECTORY_ENTRY_IAT 12	Import address table
IMAGE_DIRECTORY_ENTRY_IMPORT 1	Import directory
IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG 10	Load configuration directory
IMAGE_DIRECTORY_ENTRY_RESOURCE 2	Resource directory
IMAGE_DIRECTORY_ENTRY_SECURITY 4	Security directory
IMAGE_DIRECTORY_ENTRY_TLS 9	Thread local storage directory

Size

A pointer to a variable that receives the size of the data for the directory entry that is located.

FoundHeader

A pointer to an IMAGE_SECTION_HEADER structure that receives the data. If the section header does not exist, this parameter is NULL.

Return Value

If the function succeeds, the return value is a pointer to the data for the directory entry.

If the function fails, the return value is NULL. To retrieve extended error information, call GetLastError.

All DbgHelp functions, such as this one, are single threaded. Therefore, calls from more than one thread to this function will likely result in unexpected behavior or memory corruption. To avoid this, you must synchronize all concurrent calls from more than one thread to this function.

Requirements

Redistributable	Requires DbgHelp.dll 5.1 or later.
Header	Declared in Dbghelp.h.
Library	Use Dbghelp.lib.
DLL	Requires Dbghelp.dll.

See Also

DbgHelp Functions
IMAGE_SECTION_HEADER
MapViewOfFile

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Build date: 9/25/2007