刪除父窗口導致QMessageBox崩潰

原創 Derek_0101 2020-06-17 09:23

dlg的closeevent中發送一個信號closeSGL()，其他對象負責delete dlg，如果有個MessageBox的父對象爲dlg，並處於打開狀態，此時程序崩潰。

修改方法爲 closeSGL的connect參數設爲Qt::QueuedConnection（原爲Qt::DirectConnection）。（爲什麼不用closeLater()？業務需要）

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