IStillImage::GetHwNotificationState method
The IStillImage::GetHwNotificationState method indicates whether applications will be notified when Still Image Device Events occur on a specified device.
Syntax
HRESULT GetHwNotificationState(
[in] LPCWSTR pwszDeviceName,
[out] BOOL *pbCurrentState
);
Parameters
pwszDeviceName [in]
Caller-supplied pointer to a string representing an internal device name, obtained by calling IStillImage::GetSTILaunchInformation or IStillImage::GetDeviceList.pbCurrentState [out]
Receives TRUE if event notification is enabled, or FALSE otherwise.
Return value
If the operation succeeds, the method returns S_OK. Otherwise, it returns one of the STIERR-prefixed error codes defined in stierr.h.
Remarks
Before calling IStillImage::GetHwNotificationState, clients of the IStillImage COM interface must call IStillImage::StiCreateInstance to obtain an IStillImage interface pointer.
Requirements
Target platform |
Desktop |
Header |
Sti.h (include Sti.h) |
See also
IStillImage::EnableHwNotifications