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SpoolerCopyFileEvent function (winsplp.h)

  • Artikel

A Point and Print DLL's SpoolerCopyFileEvent function receives notifications of events associated with copying print queue-associated files to a print client, when the client connects to a print server.

Syntax

BOOL SpoolerCopyFileEvent(
  [in] LPWSTR pszPrinterName,
  [in] LPWSTR pszKey,
  [in] DWORD  dwCopyFileEvent
);

Parameters

[in] pszPrinterName

Caller-supplied pointer to a string representing the printer name.

[in] pszKey

Caller-supplied pointer to a string representing a subkey under the printer's CopyFiles registry key. This subkey identifies the component to which the Point and Print DLL belongs.

[in] dwCopyFileEvent

Caller-supplied flag that identifies the event being reported. Valid flag values are contained in the following table.

Flag When Received Where Received
COPYFILE_EVENT_ADD_PRINTER_CONNECTION After a client application has called AddPrinterConnection. Client copy of SpoolerCopyFileEvent. The calling context is the client application.
COPYFILE_EVENT_DELETE_PRINTER After a call to DeletePrinter has been made. Client copy of SpoolerCopyFileEvent. The calling context is the client's spooler.
COPYFILE_EVENT_DELETE_PRINTER_CONNECTION After a client application has called DeletePrinterConnection. Client copy of SpoolerCopyFileEvent. The calling context is the client application.
COPYFILE_EVENT_FILES_CHANGED After the client has downloaded the files specified under the pszKey subkey of the printer's CopyFiles registry key. Client copy of SpoolerCopyFileEvent. The calling context is the client's spooler.
COPYFILE_EVENT_SET_PRINTER_DATAEX After a call to SetPrinterDataEx has been processed on the server. Server copy of SpoolerCopyFileEvent. The calling context is the client application, by impersonation.

Return value

If the function encounters errors, the function should return FALSE. Otherwise, it should return TRUE.

Remarks

All Point and Print DLLs must export a SpoolerCopyFileEvent function, which is called by the print spooler. Its purpose is to allow a Point and Print DLL to be notified of events related to the downloading of print queue-associated files, from a print server to a client system, when an application on the client connects to the server. For a complete description of the steps involved in creating a Point and Print connection, see Supporting Point and Print.

A Point and Print DLL executes on both the server and the client. The SpoolerCopyFileEvent function can determine where it is executing by reading the contents of dwCopyFileEvent, which supplies a flag indicating the event. The function should process the event and return. If no processing is necessary, the function should just return TRUE.

If dwCopyFileEvent is COPYFILE_EVENT_ADD_PRINTER_CONNECTION or COPYFILE_EVENT_ADD_PRINTER_CONNECTION, the string supplied by pszPrinterName includes the server name.

Requirements

Requirement Value
Target Platform Universal
Header winsplp.h (include Winsplp.h)
Library Mscms.lib
DLL Mscms.dll

See also

GenerateCopyFilePaths