IPrintOemDriverUni::DrvGetDriverSetting method (prcomoem.h)

Article
02/22/2024

The IPrintOemDriverUni::DrvGetDriverSetting method is provided by the Unidrv driver so that rendering plug-ins can obtain the current status of printer features and other internal information.

Syntax

HRESULT DrvGetDriverSetting(
  PVOID  pdriverobj,
  PCSTR  Feature,
  PVOID  pOutput,
  DWORD  cbSize,
  PDWORD pcbNeeded,
  PDWORD pdwOptionsReturned
);

Parameters

pdriverobj

Caller-supplied pointer to a DEVOBJ structure.

Feature

Caller supplied value identifying the printer feature for which option settings will be returned. This can be either a string pointer or a constant, as described in the following Remarks section.

pOutput

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

cbSize

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

pcbNeeded

Caller-supplied pointer to a location to receive the minimum buffer size required to contain the requested information.

pdwOptionsReturned

Caller-supplied pointer to a location to receive the number of option strings placed in pOutput.

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

When the IPrintOemDriverUni::DrvGetDriverSetting method is called, either a string pointer or a constant value can be specified for pFeatureKeyword.

If pFeatureKeyword is a string, it must represent a feature name specified in a Unidrv minidriver GPD file
The method should return one or more NULL-terminated strings in the buffer pointed to by pOutput. Each string should represent the name of a currently selected option. The number of strings should be returned in pdwOptionsReturned.
If pFeatureKeyword is a constant, it must be one of the OEMGDS_-prefixed constants defined in printoem.h. The method should return the value indicated by the specified constant by placing it in the buffer pointed to by pOutput. The value returned in pdwOptionsReturned must be 1.

Requirements

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

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