create_drawing_object_text — Create a text object which can be moved interactively.
create_drawing_object_text creates a text object which can be moved interactively across a HALCON window. The coordinates Row and Column define the position of the text.
These parameters can be queried any time with get_drawing_object_params, as well as its corresponding HALCON object with get_drawing_object_iconic.
In addition to those parameters, every drawing object has a number of parameters which determine the appearance of the object in the HALCON window. See set_drawing_object_params for details on the number and meaning of those parameters.
In order to enable the interactive modification with the drawing object, the text object must be attached to an existing window. See attach_drawing_object_to_window for further details. The text will be displayed with the current font settings of the HALCON window by default. However, the font setting can be adjusted with set_drawing_object_params. Once attached, the text can be moved by the user through interaction with the window.
Note that since internal structures are allocated during create_drawing_object_text and the following operators the drawing object should be explicitly freed if it is no longer needed.
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
Row coordinate of the text position.
Default value: 12
Column coordinate of the text position.
Default value: 12
Character string to be displayed.
Default value: 'Text'
Handle of the drawing object.
If the parameter values are correct, the operator create_drawing_object_text returns the value 2 (H_MSG_2 (H_MSG_TRUE)). Otherwise an exception is raised.
attach_drawing_object_to_window, get_drawing_object_params, set_drawing_object_params