GetProcAddress

Description

Retrieves the address of a function in a DLL loaded into memory. Used to import functions from other DLLs in addition to the functions imported in the PE file header.

Syntax

FARPROC WINAPI GetProcAddress(
  _In_  HMODULE hModule,
  _In_  LPCSTR lpProcName
);

Parameters

hModule [in]

A handle to the DLL module that contains the function or variable. The LoadLibrary, LoadLibraryEx, LoadPackagedLibrary, or GetModuleHandle function returns this handle.

The GetProcAddress function does not retrieve addresses from modules that were loaded using the LOAD_LIBRARY_AS_DATAFILE flag. For more information, see LoadLibraryEx.

lpProcName [in]

The function or variable name, or the function's ordinal value. If this parameter is an ordinal value, it must be in the low-order word; the high-order word must be zero.

Return value

If the function succeeds, the return value is the address of the exported function or variable.

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