lineConfigDialog

The lineConfigDialog function causes the provider of the specified line device to display a dialog box (attached to hwndOwner of the application) to allow the user to configure parameters related to the line device.

LONG lineConfigDialog(
  DWORD dwDeviceID,       
  HWND hwndOwner,         
  LPCSTR lpszDeviceClass  
);
 

Parameters

dwDeviceID

The line device to be configured.

hwndOwner

A handle to a window to which the dialog box is to be attached. Can be NULL to indicate that any window created during the function should have no owner window.

lpszDeviceClass

A pointer to a NULL-terminated string that identifies a device class name. This device class allows the application to select a specific subscreen of configuration information applicable to that device class. This parameter is optional and can be left NULL or empty, in which case the highest level configuration is selected.

Return Values

Returns zero if the request succeeds or a negative error number if an error occurs. Possible return values are:

LINEERR_BADDEVICEID, LINEERR_NOMEM, LINEERR_INUSE, LINEERR_OPERATIONFAILED, LINEERR_INVALDEVICECLASS, LINEERR_RESOURCEUNAVAIL, LINEERR_INVALPARAM, LINEERR_UNINITIALIZED, LINEERR_INVALPOINTER, LINEERR_OPERATIONUNAVAIL, LINEERR_NODEVICE.

Remarks

The lineConfigDialog function causes the service provider to display a modal dialog box (attached to hwndOwner of the application) to allow the user to configure parameters related to the line specified by dwDeviceID. The lpszDeviceClass parameter allows the application to select a specific subscreen of configuration information applicable to the device class in which the user is interested; the permitted strings are the same as for lineGetID. For example, if the line supports the Comm API, passing "COMM" as lpszDeviceClass causes the provider to display the parameters related specifically to Comm (or, at least, start at the corresponding point in a multilevel configuration dialog box chain, so the user doesn't have to "dig" to find the parameters of interest).

The lpszDeviceClass parameter would be "tapi/line" , "", or NULL to cause the provider to display the highest level configuration for the line.

QuickInfo

  Version: Use TAPI version 1.4 and later.
  Header: Declared in tapi.h.
  Import Library: Link with tapi32.lib.

See Also

TAPI Reference Overview, Basic Telephony Services Reference, lineGetID