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Chapter 7
Advanced Function APIs
211
7.3.4
Shared Camera/Accessory Parameter Value Callbacks
This section provides programming information about shared camera and accessory
parameter value callbacks.
7.3.4.1
PicamIntegerValueChangedCallback()
Description
PicamIntegerValueChangedCallback()
is the change notification callback
function called when a parameter’s integer value has been changed.
Syntax
PicamIntegerValueChangedCallback()
is:
typedef PicamError (PIL_CALL* PicamIntegerValueChangedCallback)
(
PicamHandle camera_or_accessory,
PicamParameter parameter,
piint value);
Input Parameters
Input parameters for
PicamIntegerValueChangedCallback()
7.3.4.2
PicamFloatingPointValueChangedCallback()
Description
PicamFloatingPointValueChangedCallback()
is the change notification callback
function called when a parameter’s floating point value has been changed.
Syntax
PicamFloatingPointValueChangedCallback()
is:
typedef PicamError (PIL_CALL* PicamFloatingPointValueChangedCallback)
(
PicamHandle camera_or_accessory,
PicamParameter parameter,
piflt value);
Input Parameters
Input parameters for
PicamFloatingPointValueChangedCallback()
camera_or_accessory:
Handle for the hardware for which a parameter’s integer value has
been changed.
parameter:
The parameter which has had its integer value changed.
value:
The new integer value.
camera_or_accessory:
Handle for the hardware for which a parameter’s floating point
value has been changed.
parameter:
The parameter which has had its floating point value changed.
value:
The new floating point value.
Summary of Contents for Princeton Instruments PICam 5.x
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