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Progress bars are passive controls that show the remaining time to complete a certain task (Figure 1). As time passes we must update the control. The undefined state will show an animation without indicating status, which will be useful when we cannot determine the required time. In Hello Slider and Progress! you have an example of use.
- Use progress_create to create a progress bar.
- Use progress_undefined to set the bar as undefined.
- Use progress_value to update the progress of the task.
Create a progress bar.
Set the progress bar as undefined.
Set the progress position.
The position between 0.0 and 1.0.