PTOpenProvider function (prntvpt.h)
Opens an instance of a print ticket provider.
Syntax
HRESULT PTOpenProvider(
[in] PCWSTR pszPrinterName,
DWORD dwVersion,
[out] HPTPROVIDER *phProvider
);
Parameters
[in] pszPrinterName
A pointer to the full name of a print queue.
dwVersion
The version of the Print Schema requested by the caller.
[out] phProvider
A pointer to a handle for the provider.
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 first version of the Print Schema was released with Windows Vista and is version 1. This operation fails if version is not supported. Contrast this with PTOpenProviderEx which opens a provider even if it supports only versions that are earlier than requested.
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 |