介绍多个对话框之间相互调用，两个同级的子对话如何获取另一个子对话框编辑框中的值，非模态对话框和模态对话框是如何创建与调用的-Descr iption calls between multiple dialog boxes, two at the same level dialogue on how to get another sub-sub-dialog edit box value, non-modal dialog boxes a