Required Printer Interface Driver Functions
A printer interface driver must implement the following functions:
| DevQueryPrintEx | Determines whether or not the driver can print the specified job on a printer. |
| DrvConvertDevMode | Converts the specified DEVMODE. |
| DrvDeviceCapabilities | Provides information about the specified device and its capabilities. |
| DrvDevicePropertySheets | Adds the driver’s printer properties page(s) to the specified property sheet. |
| DrvDocumentPropertySheets | Adds the driver’s document properties page(s) to the specified property sheet. |
| DrvPrinterEvent | Responds to the print subsystem’s request for action in response to an event that the subsystem has received. |
DrvDocumentPropertySheets is called when a user has requested that a printer’s document properties be updated and/or displayed.
When DrvDocumentPropertySheets is called with a null pPSUIInfo parameter, the spooler is the caller. A user interface is not required in this situation; instead, DrvDocumentPropertySheets should perform the spooler-requested operation that is specified in the fMode member of the DOCUMENTPROPERTYHEADER structure.
When DrvDocumentPropertySheets is called with a non-null pPSUIInfo parameter, the Common Property Sheet User Interface is the caller. The printer interface driver has the option of supplying the CPSUI with driver-specific document property page(s) for display on the CPSUI-managed property sheet. See the Common Property Sheet User Interface for more details.
The Print Folder calls DrvDevicePropertySheets when a user has requested to see the Printer Properties property sheet. The printer interface driver has the option of supplying the CPSUI with a property sheet page that displays and permits configuration of device-specific properties.
Because virtually all printer drivers have registry data, the printer interface driver must implement the PRINT_EVENT_INITIALIZE event for DrvPrinterEvent. All other events can be optionally implemented.