PTOpenProviderEx function (prntvpt.h)

  • Article

Opens an instance of a print ticket provider.

Syntax

HRESULT PTOpenProviderEx(
  [in]  PCWSTR      pszPrinterName,
        DWORD       dwMaxVersion,
        DWORD       dwPrefVersion,
  [out] HPTPROVIDER *phProvider,
  [out] DWORD       *pUsedVersion
);

Parameters

[in] pszPrinterName

A pointer to the full name of a print queue.

dwMaxVersion

The latest version of the Print Schema that the caller supports.

dwPrefVersion

The version of the Print Schema requested by the caller.

[out] phProvider

A pointer to a handle for the provider.

[out] pUsedVersion

A pointer to the version of the Print Schema that the print ticket provider will use.

Return value

If the operation succeeds, the return value is S_OK, otherwise the HRESULT contains an error code.

For more information about COM error codes, see Error Handling.

Remarks

Note  This is a blocking or synchronous function and might not return immediately. How quickly this function returns depends on run-time factors such as network status, print server configuration, and printer driver implementation—factors that are difficult to predict when writing an application. Calling this function from a thread that manages interaction with the user interface could make the application appear to be unresponsive.
 
The pszPrinterName parameter must be the full name, not the truncated name as it may appear in a DEVMODE.

The first version of the Print Schema was released with Windows Vista and is version 1. If the print ticket provider does not support prefVersion, PTOpenProviderEx successfully opens a handle and returns an earlier version in usedVersion.

To avoid a resource leak, phProvider must be closed with PTCloseProvider.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps only]
Minimum supported server Windows Server 2003 [desktop apps only]
Target Platform Windows
Header prntvpt.h
Library Prntvpt.lib
DLL Prntvpt.dll

See also

Print Schema

Print Spooler API Functions

Printing