GetDeviceDriverFileNameA function (psapi.h)

Retrieves the path available for the specified device driver.

Syntax

DWORD GetDeviceDriverFileNameA(
  [in]  LPVOID ImageBase,
  [out] LPSTR  lpFilename,
  [in]  DWORD  nSize
);

Parameters

[in] ImageBase

The load address of the device driver.

[out] lpFilename

A pointer to the buffer that receives the path to the device driver.

[in] nSize

The size of the lpFilename buffer, in characters. If the buffer is not large enough to store the path plus the terminating null character, the string is truncated.

Return value

If the function succeeds, the return value specifies the length of the string copied to the buffer, not including any terminating null character.

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

Remarks

Starting with Windows 7 and Windows Server 2008 R2, Psapi.h establishes version numbers for the PSAPI functions. The PSAPI version number affects the name used to call the function and the library that a program must load.

If PSAPI_VERSION is 2 or greater, this function is defined as K32GetDeviceDriverFileName in Psapi.h and exported in Kernel32.lib and Kernel32.dll. If PSAPI_VERSION is 1, this function is defined as GetDeviceDriverFileName in Psapi.h and exported in Psapi.lib and Psapi.dll as a wrapper that calls K32GetDeviceDriverFileName.

Programs that must run on earlier versions of Windows as well as Windows 7 and later versions should always call this function as GetDeviceDriverFileName. To ensure correct resolution of symbols, add Psapi.lib to the TARGETLIBS macro and compile the program with –DPSAPI_VERSION=1. To use run-time dynamic linking, load Psapi.dll.

Note

The psapi.h header defines GetDeviceDriverFileName as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.

Requirements

   
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header psapi.h
Library Kernel32.lib on Windows 7 and Windows Server 2008 R2; Psapi.lib (if PSAPI_VERSION=1) on Windows 7 and Windows Server 2008 R2; Psapi.lib on Windows Server 2008, Windows Vista, Windows Server 2003 and Windows XP
DLL Kernel32.dll on Windows 7 and Windows Server 2008 R2; Psapi.dll (if PSAPI_VERSION=1) on Windows 7 and Windows Server 2008 R2; Psapi.dll on Windows Server 2008, Windows Vista, Windows Server 2003 and Windows XP

See also

Device Driver Information

EnumDeviceDrivers

PSAPI Functions