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SymEnumSymbolsEx function

Enumerates all symbols in a process.

Syntax


BOOL IMAGEAPI SymEnumSymbolsEx(
  _In_      HANDLE hProcess,
  _In_      ULONG64 BaseOfDll,
  _In_opt_  PCTSTR Mask,
  _In_      PSYM_ENUMERATESYMBOLS_CALLBACK EnumSymbolsCallback,
  _In_opt_  PVOID UserContext,
  _In_      DWORD Options
);

Parameters

hProcess [in]

A handle to a process. This handle must have been previously passed to the SymInitialize function.

BaseOfDll [in]

The base address of the module. If this value is zero and Mask contains an exclamation point (!), the function looks across modules. If this value is zero and Mask does not contain an exclamation point, the function uses the scope established by the SymSetContext function.

Mask [in, optional]

A wildcard string that indicates the names of the symbols to be enumerated. The text can optionally contain the wildcards, "*" and "?".

To specify a specific module or set of modules, begin the text with a wildcard string specifying the module, followed by an exclamation point. When specifying a module, BaseOfDll is ignored.

ValueMeaning
foo

If BaseOfDll is not zero, then SymEnumSymbols will look for a global symbol named "foo".

If BaseOfDll is zero, then SymEnumSymbols will look for a local symbol named "foo" within the scope established by the most recent call to the SymSetContext function.

foo?

If BaseOfDll is not zero, then SymEnumSymbols will look for a global symbol that starts with "foo" and contains one extra character afterwards, such as "fool" and "foot".

If BaseOfDll is zero, then SymEnumSymbols will look for a symbol that starts with "foo" and contains one extra character afterwards, such as "fool" and "foot". The search would be within the scope established by the most recent call to the SymSetContext function.

foo*!bar

SymEnumSymbols will look in every loaded module that starts with the text "foo" for a symbol called "bar". It could find matches such as these, "foot!bar", "footlocker!bar", and "fool!bar".

*!*

SymEnumSymbols will enumerate every symbol in every loaded module.

 

EnumSymbolsCallback [in]

A SymEnumSymbolsProc callback function that receives the symbol information.

UserContext [in, optional]

A user-defined value that is passed to the callback function, or NULL. This parameter is typically used by an application to pass a pointer to a data structure that provides context for the callback function.

Options [in]

Indicates possible options.

ValueMeaning
SYMENUM_OPTIONS_DEFAULT
1

Use the default options.

SYMENUM_OPTIONS_INLINE
2

Enumerate inline symbols.

 

Return value

If the function succeeds, the return value is TRUE.

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

Requirements

Redistributable

DbgHelp.dll 6.2 or later

Header

DbgHelp.h

Library

DbgHelp.lib

DLL

DbgHelp.dll

Unicode and ANSI names

SymEnumSymbolsExW (Unicode) and SymEnumSymbolsEx (ANSI)

 

 

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