IPrintOemUI::UpgradePrinter method (prcomoem.h)

Artikel
04/01/2021

The IPrintOemUI::UpgradePrinter method allows a user interface plug-in to upgrade device option values that are stored in the registry.

Syntax

HRESULT UpgradePrinter(
  DWORD dwLevel,
  PBYTE pDriverUpgradeInfo
);

Parameters

dwLevel

Caller-supplied version number of the structure pointed to by pDriverUpgradeInfo. Current valid value is 1.

pDriverUpgradeInfo

Caller-supplied pointer to a DRIVER_UPGRADE_INFO_1 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.
E_NOTIMPL	The method is not implemented.

Remarks

If you provide a user interface plug-in for one of Microsoft's printer drivers, and if the user interface plug-in stores device option values in the registry, it should implement the IPrintOemUI::UpgradePrinter method to update those values.

A user interface plug-in's IPrintOemUI::UpgradePrinter method performs the same types of operations as the DrvUpgradePrinter function that is exported by user-mode printer interface DLLs. When the driver's DrvUpgradePrinter function is called, it updates its own registry values and then calls the IPrintOemUI::UpgradePrinter method.

If IPrintOemUI::UpgradePrinter methods are exported by multiple user interface plug-ins, the methods are called in the order that the plug-ins are specified for installation.

For more information about creating and installing user interface plug-ins, see Customizing Microsoft's Printer Drivers.

Requirements

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

Delen via