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scrap: keep enumerate_output6's both-or-neither promise when IDXGIOutput6 is missing

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Review nit: a matched output whose IDXGIOutput6 query fails returned the
fresh factory next to a null output, which let the constructor pair a
current factory with the capturer's fallback output. Return neither in
that case so the next refresh enumerates again.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RLb1dNdhFqUQExJPANjo1F
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rustdesk
2026-09-02 16:14:22 +08:00
parent 2f3a6789de
commit 2f28a96f6a
1 changed files with 3 additions and 0 deletions
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3
libs/scrap/src/dxgi/hdr.rs
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@@ -444,6 +444,9 @@ unsafe fn enumerate_output6(
let mut desc: DXGI_OUTPUT_DESC = mem::zeroed();
if (*output.0).GetDesc(&mut desc) == S_OK && wide_eq(&desc.DeviceName, device_name) {
let output6 = query_output6(output.0 as *mut IUnknown);
if output6.is_null() {
return (ComPtr(ptr::null_mut()), ComPtr(ptr::null_mut()));
}
return (factory, output6);
}
}