Scrolling Capture

Scrolling capture stitches several screenshots of a scrollable region into one tall image. It is the only way to capture a full web page, long chat log, or multi-page document without cropping.

How to Trigger

Open the Tex toolbar and click Scrolling Capture (the multi-page icon). This opens the ScrollingCaptureWindow — a small 360 x 200 status panel that walks you through the process.

Workflow

1. Click the Scrolling Capture command.
2. The ScrollingCaptureWindow appears with instructions.
3. Select the scrollable region you want to capture (for example the content area of a browser tab or document pane).
4. Tex auto-scrolls the region and captures frames as it goes.
5. Each new frame is matched against the previous one to find the overlap.
6. Overlapping rows are discarded and the frames are stitched into one long composite image.
7. The final composite is loaded into the MainWindow preview and appended to history like any other capture.

Progress and Cancelling

The status window shows:

• Instruction text and current phase.
• A progress percentage as frames are stitched.
• An estimated time remaining.
• A Cancel button — stops the operation and discards the partial result.

When It Works Well

Scrolling capture relies on matching pixel content between frames to figure out the scroll delta. It works best when:

• The region scrolls smoothly in reasonably small increments.
• The content is static while scrolling (no animations, videos, or lazy-loaded placeholders swapping in).
• The region has distinctive content, not a solid colour band.

After Capture

The stitched image behaves exactly like any other capture — you can annotate it (see 03.1), OCR it (see 04.1), save it (see 08.1), or pin it (see 07.4).