demo.tcl: avoid toolhelp display issue on Tk Aqua 9.0 (macOS)

Img is a collection of format handlers for the Tk photo image type.

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#35 demo.tcl: avoid toolhelp display issue on Tk Aqua 9.0 (macOS)

Milestone: 1.4.0

Status: closed

Owner: nobody

Labels: None

Priority: 1

Updated: 2025-12-06

Created: 2025-12-02

Creator: Christopher Chavez

Private: No

The "toolhelp" feature of the Img demo currently hides/shows itself by moving to/from a position assumed to be offscreen. On Tk Aqua 9.0 (macOS), this has an issue similar to https://core.tcl-lang.org/tk/info/132dd3d3 causing the toolhelp window to appear blank, at least when hovering over a different image type. The attached patch avoids this issue by withdrawing/deiconifying the toolhelp window instead of trying to move it offscreen.

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imgdemotoolhelp.diff

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Paul Obermeier - 2025-12-06

status: open --> closed
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Paul Obermeier - 2025-12-06

Corrected with commit #963.
Your patch did not work. Solved by creating and destroying the tooltip window.

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demo.tcl: avoid toolhelp display issue on Tk Aqua 9.0 (macOS)

Img is a collection of format handlers for the Tk photo image type.

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#35 demo.tcl: avoid toolhelp display issue on Tk Aqua 9.0 (macOS)

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