RpcEnumPrinterDrivers enumerates the printer drivers installed on a specified print server.

 DWORD RpcEnumPrinterDrivers(
   [in, string, unique] STRING_HANDLE pName,
   [in, string, unique] wchar_t* pEnvironment,
   [in] DWORD Level,
   [in, out, unique, size_is(cbBuf), disable_consistency_check] 
     BYTE* pDrivers,
   [in] DWORD cbBuf,
   [out] DWORD* pcbNeeded,
   [out] DWORD* pcReturned
 );

pName: Specified in Print Server Name Parameters (section 3.1.4.1.4).

pEnvironment: Specified in Environment Name Parameters (section 3.1.4.1.3).<327>

Level: The driver information level.

Value

Description

0x00000001

Corresponds to _DRIVER_INFO_1 (section 2.2.2.4.1).

0x00000002

Corresponds to _DRIVER_INFO_2 (section 2.2.2.4.2).

0x00000003

Corresponds to _DRIVER_INFO_3 (section 2.2.2.4.3).

0x00000004

Corresponds to _DRIVER_INFO_4 (section 2.2.2.4.4).

0x00000005

Corresponds to _DRIVER_INFO_5 (section 2.2.2.4.5).

0x00000006

Corresponds to _DRIVER_INFO_6 (section 2.2.2.4.6).

0x00000008

Corresponds to _DRIVER_INFO_8 (section 2.2.2.4.8).

pDrivers: A pointer to the BUFFER, as specified in INFO Structures Query Parameters (section 3.1.4.1.9).

BUFFER TYPE: _DRIVER_INFO.

This parameter can be NULL if cbBuf equals zero.

cbBuf: Specified in INFO Structures Query Parameters (section 3.1.4.1.9).

pcbNeeded: Specified in INFO Structures Query Parameters (section 3.1.4.1.9).

pcReturned: Specified in INFO Structures Query Parameters (section 3.1.4.1.9).

Return Values: This method MUST return zero (ERROR_SUCCESS) to indicate successful completion or a nonzero Windows error code to indicate failure [MS-ERREF].

Upon receiving this message, the server MUST perform the validation steps specified in the following sections:

Additional validation MAY<328> be performed.

If parameter validation fails, the server MUST fail the operation immediately and return a nonzero error response to the client. Otherwise, the server MUST process the message and compose a response to the client as follows:<329>