QL-Win / QL-Win/QuickLook

[Feature Request]: Native Right-Click Context Menu Option to Preview Files

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Dominant language
C#
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Description

For all's convenience, please use English to fill this issue.

Is your feature request related to a problem? Please describe.
When using alternative file managers like Q-Dir (which utilize a dual-panel layout), relying strictly on the Spacebar shortcut to trigger QuickLook does not always work smoothly or seamlessly depending on the active window focus.
Previously, users could bypass this by manually adding a custom registry key (HKEY_CLASSES_ROOT*\shell\PreviewWithQuickLook) pointing to the executable. However, recent updates (especially with the Microsoft Store / UWP version and changes in Windows paths/permissions) have broken these manual registry workarounds, throwing errors like "Windows cannot access the specified device, path, or file".

Describe the solution you'd like
Please consider adding a native right-click context menu option ("Preview with QuickLook") directly integrated into the application by default.
Having a context menu entry would allow users to trigger previews using the mouse right-click. This is extremely helpful for:

  • Users of alternative file managers (like Q-Dir or Total Commander) where global keyboard hooks might fail or conflict.
  • Accessibility or mouse-driven workflows where pressing the Spacebar isn't convenient.

Additional context
A native implementation would handle Microsoft Store sandboxed paths / dynamic package family names automatically, avoiding the broken paths that occur with hardcoded manual registry entries after app updates.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating QuickLook's existing preview trigger and the Windows integration corresponding to the PreviewWithQuickLook registry key. Verify how the Microsoft Store version resolves its executable and package paths; done means a default “Preview with QuickLook” right-click action works in alternative file managers without manual registry configuration.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop, operating-systems
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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