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imgui: fix crash when launching from UNC path (network shares) (#836)

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## Link to GitHub Issue or related Pull Request, if one exists
n/a

## Description of change
ImGui filebrowser extension crashes due to MinGW quirk about UNC path
handling.

## Testing
This commit is contained in:
bicarus
2026-07-26 04:30:06 -07:00
committed by GitHub
parent bd2fbfcb67
commit 159043803c
1 changed files with 9 additions and 1 deletions
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src/spice2x/external/imgui/imgui_filebrowser.h
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+9 -1
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@@ -878,7 +878,15 @@ inline void ImGui::FileBrowser::UpdateFileRecords()
inline void ImGui::FileBrowser::SetPwdUncatched(const std::filesystem::path &pwd)
{
pwd_ = absolute(pwd);
// spice2x
// avoid MinGW std::filesystem::absolute() duplicating UNC server/share
// prefixes, which makes directory_iterator() throw during startup
// spice2x
const auto &nativePwd = pwd.native();
const bool hasUncPrefix = nativePwd.size() >= 2 &&
(nativePwd[0] == '\\' || nativePwd[0] == '/') &&
(nativePwd[1] == '\\' || nativePwd[1] == '/');
pwd_ = hasUncPrefix ? pwd : absolute(pwd);
UpdateFileRecords();
selectedFilenames_.clear();
(*inputNameBuf_)[0] = '\0';