Teledyne Princeton Instruments PICam 5.x, Руководство программиста

Страница: 208 / 357

208 PICam™ 5.x Programmer’s Manual Issue 11
7.3.1 Camera-Specific Discovery Callbacks
This section provides programming information about camera-specific discovery
callbacks.
7.3.1.1
PicamDiscoveryCallback()
Description
PicamDiscoveryCallback()
is the callback function for camera discovery.
Syntax
The syntax for
PicamDiscoveryCallback()
is:
typedef PicamError (PIL_CALL* PicamDiscoveryCallback)
(
const PicamCameraID* id,
PicamHandle device,
PicamDiscoveryAction action);
Input Parameters
The input parameters for
PicamDiscoveryCallback()
are:
7.3.2 Accessory-Specific Discovery Callbacks
This section provides programming information about accessory-specific discovery
callbacks.
7.3.2.1 PicamAccessoryDiscoveryCallback()
Description
PicamAccessoryDiscoveryCallback()
is the callback function for accessory
discovery.
Syntax
The syntax for
PicamAccessoryDiscoveryCallback()
is:
typedef PicamError (PIL_CALL* PicamAccessoryDiscoveryCallback)
(
const PicamAccessoryID* id,
PicamHandle accessory,
PicamDiscoveryAction action);
Input Parameters
The input parameters for
PicamAccessoryDiscoveryCallback()
are:
id:
Pointer to the camera that has been discovered.
device: The handle for an open camera device if id is open within this process.
This is null otherwise.
action:
The type of discovery.
id: Pointer to the accessory that has been discovered.
accessory:
The handle for an open accessory device if
id
is open within this process.
This is null otherwise.
action: The type of discovery.