可拖拽文本范例

阐明如何在 Widget 之间拖放文本。

文件：

• draganddrop/draggabletext/draggabletext.pro
• draganddrop/draggabletext/draggabletext.qrc
• draganddrop/draggabletext/dragwidget.cpp
• draganddrop/draggabletext/dragwidget.h
• draganddrop/draggabletext/main.cpp