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IPrintOemUni::DevMode method (prcomoem.h)

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The IPrintOemUni::DevMode method, provided by rendering plug-ins for Unidrv, performs operations on private DEVMODEW members.

Syntax

HRESULT DevMode(
  DWORD       dwMode,
  POEMDMPARAM pOemDMParam
);

Parameters

dwMode

Specifies a caller-supplied constant. See the Remarks section for more information.

pOemDMParam

Caller-supplied pointer to an OEMDMPARAM structure.

Return value

The method must return one of the following values.

Return code Description
S_OK
 The operation succeeded.
E_FAIL
 The operation failed

Remarks

A rendering plug-in for Unidrv must implement the IPrintOemUni::DevMode method.

If you are providing a user interface plug-in for Unidrv, and if you are adding private members to the driver's DEVMODEW structure, you must implement both the IPrintOemUI::DevMode and the IPrintOemUni::DevMode methods. The code implementing these methods must be identical and can be placed in a library that is statically linked to both the UI plug-in and the rendering plug-in.

The IPrintOemUni::DevMode method must perform the operation indicated by its dwMode value. Each time IPrintOemUni::DevMode is called, dwMode contains one of the following constants, which are listed in the order they are received:

Requirements

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

See also

IPrintOemUI::DevMode

IPrintOemUni