PHONE_DEVSPECIFIC  18GDUY9

The implementation sends the PHONE_DEVSPECIFIC message to an application to notify the application about device-specific events occurring at the phone. The meaning of the message and the interpretation of the parameters is implementation-defined.

PHONE_DEVSPECIFIC
hPhone = (HPHONE) hPhoneDevice;

    dwCallbackInstance = (DWORD) hCallback;

    dwParam1 = (DWORD) DeviceSpecific1;

    dwParam2 = (DWORD) DeviceSpecific2;

    dwParam3 = (DWORD) DeviceSpecific3;

Parameters

hPhone

A handle to the phone device.

dwCallbackInstance

The application's callback instance provided when opening the phone device.

dwParam1

Device specific.

dwParam2

Device specific.

dwParam3

Device specific.

Return Values

No return value.