SymFindDebugInfoFile Function

Debug Help Library

SymFindDebugInfoFile Function

Locates a .dbg file in the process search path.

HANDLE WINAPI SymFindDebugInfoFile(
  __in          HANDLE hProcess,
  __in          PCTSTR FileName,
  __out         PTSTR DebugFilePath,
  __in          PFIND_DEBUG_FILE_CALLBACK Callback,
  __in          PVOID CallerData



A handle to the process that was originally passed to the SymInitialize function.


The name of the .dbg file. You can use a partial path.


The fully-qualified path of the .dbg file. This buffer must be at least MAX_PATH characters.


An application-defined callback function that verifies whether the correct file was found or the function should continue its search. For more information, see FindDebugInfoFileProc.

This parameter can be NULL.


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

Return Value

If the function succeeds, the return value is an open handle to the .dbg file.

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


This function uses the search path set using the SymInitialize or SymSetSearchPath function.

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.

To call the Unicode version of this function, define DBGHELP_TRANSLATE_TCHAR.



Requires DbgHelp.dll 6.6 or later.


Declared in Dbghelp.h.


Use Dbghelp.lib.


Requires Dbghelp.dll.


Implemented as SymFindDebugInfoFileW (Unicode) and SymFindDebugInfoFile (ANSI).

See Also

DbgHelp FunctionsFindDebugInfoFileProc

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Build date: 9/25/2007

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