Output or screen scraping is used in activities that are designed to receive text from a specified element or region. You can choose between Api Call, Window Message, and OCR.
| Method | Description | Speed | Accuracy | Background Execution | Extract Text Position | Support for Citrix |
|---|---|---|---|---|---|---|
| Api Call | The default method. It is very accurate and works in most cases. | 100 | 100% | Yes | No | No |
| Window Message | The Windows operating system uses a message-passing model. We simulate this model using Window Message to simulate mouse or keyboard events. In this activity, window messages simulate mouse input elements in the form of an internal message to the Windows system. | 80 | 100% | Yes | No | No |
| OCR | When using virtual environments, or if none of the above methods work, you can use OCR. This is not 100% accurate, but produces results as long as there is visible text. It is based on the Tesseract engine. | 40 | 99% | No | Yes | Yes |