The PowerPoint program window and the PowerPoint window under full-screen presentation are two separate windows. Therefore, you need to re-add the window to Video Presentation after entering the full-screen presentation state in PowerPoint. The specific steps are as follows:
Step 1: Open DemoCreator and enter Video Presentation mode.
Step 2: Open the PowerPoint window and enter full-screen presentation mode.
Step 3: Use the shortcut key Tab+Window to return to Video Presentation, click on 'Add Window Content', and select the full-screen PowerPoint display to add. The full-screen PowerPoint will be added to the canvas. Now you can start presentation recording or streaming.