IPrintOemDriverUni::DrvGetDriverSetting method

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.


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



Caller-supplied pointer to a DEVOBJ structure.


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.


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


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


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


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
The operation succeeded.
The operation failed.
The method is not implemented.


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.


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