set_framegrabber_param🔗
Short description🔗
set_framegrabber_param — Set specific parameters of an image acquisition device.
Signature🔗
set_framegrabber_param( framegrabber AcqHandle, string Param, string Value )
Description🔗
The operator set_framegrabber_param sets specific parameters
for the image acquisition device specified by AcqHandle.
Additional information for a specific image acquisition device is
available via info_framegrabber. A comprehensive documentation
of all image acquisition device-specific parameters can be found in the
corresponding interface documentation in the directory
doc/html/reference/acquisition.
Attention🔗
For a multithreaded application,
info_framegrabber, open_framegrabber, and
close_framegrabber are executed exclusively.
set_framegrabber_param runs in parallel with all non-exclusive
operators inside and outside of this group.
Execution information🔗
Execution information
-
Multithreading type: reentrant (runs in parallel with non-exclusive operators).
-
Multithreading scope: global (may be called from any thread).
-
Processed without parallelization.
This operator modifies the state of the following input parameter:
During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.
Parameters🔗
AcqHandle (input_control, state is modified) framegrabber → (handle)
Handle of the acquisition device to be used.
Param (input_control) string(-array) → (string)
Parameter name.
Suggested values: 'color_space', 'continuous_grabbing', 'external_trigger', 'grab_timeout', 'image_height', 'image_width', 'port', 'start_column', 'start_row', 'volatile'
Value (input_control) string(-array) → (string / real / integer / handle)
Parameter value to be set.
Result🔗
If the image acquisition device is open and the specified parameter /
parameter value is supported, the operator set_framegrabber_param
returns the value 2 (H_MSG_TRUE). Otherwise an exception is raised.
Combinations with other operators🔗
Combinations
Possible predecessors
Possible successors
grab_image, grab_data, grab_image_start, grab_image_async, grab_data_async, get_framegrabber_param
See also
open_framegrabber, info_framegrabber, get_framegrabber_param
Module🔗
Foundation