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Specific Requirements for Device Property Page Providers (Property Page Extension DLLs)

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This topic how to create and install a property page extension DLL.

Creating a property page extension dll

A property page extension DLL that provides custom property pages must handle the request to add a property page. This request is made through the AddPropSheetPageProc callback function.

In response to this request, the DLL provides information about each of its custom property pages, creates the pages, and adds the created pages to the list of dynamic property pages for the device.

For information about how to create a custom device property page by a property page extension DLL, see General Requirements for Device Property Page Providers.

Installing a device property page

A property page extension DLL is installed by using the following directives in the INF file of a driver package:

  1. Use the add-registry-section, which is specified by an INF AddReg directive in the INF DDInstall section, to add an EnumPropPages32 entry for the device. The EnumPropPages32 entry specifies the following REG_SZ values:

    • The name of the DLL that exports the ExtensionPropSheetPageProc callback function.
    • The name of the ExtensionPropSheetPageProc callback function as implemented by the DLL.

    The following code example shows an add-registry-section that adds the EnumPropPages32 entry that specifies the name of the DLL (MyPropProvider.dll) and callback function (MyCallbackFunction):

    HKR, , EnumPropPages32, 0, "MyPropProvider.dll, MyCallbackFunction"

    Important  Both the name of the DLL and callback function must be enclosed together within quotation marks (" ").

  2. Include an INF CopyFiles directive that copies the property page extension DLL to the %SystemRoot%\System32 directory.

  3. If the device is a network adapter, you must specify NCF_HAS_UI as one of the Characteristics values in the INF DDInstall section. This value indicates that the adapter supports a user interface.

    For more information, see Specifying Custom Property Pages for Network Adapters.