QObject: Cannot create children for a parent that is in a different thread.

你的名字 2023-03-13 06:21 149阅读 0赞 
  1. // check the constructor's parent thread argument
  2. static bool check_parent_thread(QObject *parent,
  3.                                 QThreadData *parentThreadData,
  4.                                 QThreadData *currentThreadData)
  5. {
  6.     if (parent && parentThreadData != currentThreadData) {
  7.         QThread *parentThread = parentThreadData->thread;
  8.         QThread *currentThread = currentThreadData->thread;
  9.         qWarning("QObject: Cannot create children for a parent that is in a different thread.\n"
  10.                  "(Parent is %s(%p), parent's thread is %s(%p), current thread is %s(%p)",
  11.                  parent->metaObject()->className(),
  12.                  parent,
  13.                  parentThread ? parentThread->metaObject()->className() : "QThread",
  14.                  parentThread,
  15.                  currentThread ? currentThread->metaObject()->className() : "QThread",
  16.                  currentThread);
  17.         return false;
  18.     }
  19.     return true;
  20. }

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