Clipboard types other than text on Windows #29

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opened 2026-10-16 15:11:37 -05:00 by jeff · 2 comments

jeff commented

2026-10-16 15:11:37 -05:00

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On Windows, harrier's clipboard is text only: CF_UNICODETEXT in both directions. #23 brings any Clipboard type to Wayland, and leaves Windows for here.

Windows has clipboard formats, not MIME types, so this needs a mapping in both directions. Decisions to make:

Which formats map to which types: PNG (registered) ↔ image/png; HTML Format, which wraps the HTML in its own header with byte offsets, ↔ text/html; CF_DIB/CF_DIBV5 ↔ an image. Most screenshot tools put only a DIB on the clipboard, so whether harrier converts DIB to PNG decides whether reading an image works at all.
Whether an unmapped MIME type is written as a registered format named after it, so harrier ↔ harrier and other MIME-aware programs round-trip.
What the listing reports for formats with no MIME name.

The drag and drop code's IDataObject helpers (hasFormat, dataOf, formatOf) are a starting point.

On Windows, harrier's clipboard is text only: `CF_UNICODETEXT` in both directions. #23 brings any Clipboard type to Wayland, and leaves Windows for here. Windows has clipboard formats, not MIME types, so this needs a mapping in both directions. Decisions to make: - Which formats map to which types: `PNG` (registered) ↔ `image/png`; `HTML Format`, which wraps the HTML in its own header with byte offsets, ↔ `text/html`; `CF_DIB`/`CF_DIBV5` ↔ an image. Most screenshot tools put only a DIB on the clipboard, so whether harrier converts DIB to PNG decides whether reading an image works at all. - Whether an unmapped MIME type is written as a registered format named after it, so harrier ↔ harrier and other MIME-aware programs round-trip. - What the listing reports for formats with no MIME name. The drag and drop code's `IDataObject` helpers (`hasFormat`, `dataOf`, `formatOf`) are a starting point.

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2026-10-16 15:11:37 -05:00

jeff referenced this issue

2026-10-16 15:11:51 -05:00

Copy and paste clipboard types other than text #23

jeff referenced this issue

2026-10-16 17:22:00 -05:00

Copy and paste clipboard types other than text #23

jeff commented

2026-10-16 22:21:44 -05:00

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Implemented in b88d6fd; left open until it's been tried on Windows: copying an image and HTML both into and out of harrier, and pasting a screenshot (a bare DIB) into a kitty-protocol program.

Implemented in b88d6fd; left open until it's been tried on Windows: copying an image and HTML both into and out of harrier, and pasting a screenshot (a bare DIB) into a kitty-protocol program.

jeff referenced this issue from a commit

2026-10-16 22:21:44 -05:00

Carry clipboard types other than text on Windows

jeff commented

2026-10-16 23:38:58 -05:00

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Tried on Windows: a PNG put on the clipboard pastes. Carried by b88d6fd.

Tried on Windows: a PNG put on the clipboard pastes. Carried by b88d6fd.

jeff closed this issue

2026-10-16 23:38:58 -05:00