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win32: fix crash in rare cases 

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2022-06-07 10:43:26 +08:00
parent a04fd53a38
commit 9cbfe495b7
1 changed files with 5 additions and 2 deletions
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3
src/core/framelesshelper_win.cpp
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@ -1095,10 +1095,13 @@ bool FramelessHelperWin::nativeEventFilter(const QByteArray &eventType, void *me
} }
} }
if (systemThemeChanged) { if (systemThemeChanged) {
// In some rare cases the FramelessManager instance may be destroyed already.
FramelessManager *manager = FramelessManager::instance(); FramelessManager *manager = FramelessManager::instance();
if (manager) {
FramelessManagerPrivate *managerPriv = FramelessManagerPrivate::get(manager); FramelessManagerPrivate *managerPriv = FramelessManagerPrivate::get(manager);
managerPriv->notifySystemThemeHasChangedOrNot(); managerPriv->notifySystemThemeHasChangedOrNot();
} }
}
return false; return false;
} }