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IPrintOemDriverUni::DrvGetGPDData method (prcomoem.h)

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The IPrintOemDriverUni::DrvGetGPDData method is provided by the Unidrv driver so that rendering plug-ins can obtain data defined in a printer's GPD file.

Syntax

HRESULT DrvGetGPDData(
  PDEVOBJ pdevobj,
  DWORD   dwType,
  PVOID   pInputData,
  PVOID   pBuffer,
  DWORD   cbSize,
  PDWORD  pcbNeeded
);

Parameters

pdevobj

Caller-supplied pointer to a DEVOBJ structure.

dwType

Caller-supplied flag indicating the type of GPD data being requested. Currently, the following flag is the only one defined:

Flag Definition
GPD_OEMCUSTOMDATA The method returns the string associated with a GPD file's *OEMCustomData entry.

pInputData

Reserved. Must be zero.

pBuffer

Caller-supplied pointer to a buffer to receive the requested information.

cbSize

Caller-supplied size, in bytes, of the buffer pointed to by pBuffer.

pcbNeeded

Receives the driver-supplied minimum buffer size, in bytes, required to contain the requested information.

Return value

The method must return one of the following values.

Return code Description
S_OK
 The operation succeeded.
E_FAIL
 The operation failed.
E_NOTIMPL
 The method is not implemented.

Remarks

If the buffer specified by pBuffer and cbSize is too small to receive the requested information, Unidrv supplies the required buffer size in the location pointed to by pcbNeeded, returns E_FAIL, and sets the error code to ERROR_INSUFFICIENT_BUFFER.

Requirements

Requirement Value
Target Platform Desktop
Header prcomoem.h (include Prcomoem.h)