VC++实现文件拖拽(文件拖放)，分四个步骤实现文件拖拽打开，拖放获取文件路径，打开实例窗口后，拖动任意一个文件到窗口中，可获该文件的路径信息，为下一步拖放打开文件提供方便。-The VC++ implementation file drag and drop, drag and drop files, four steps to drag the file to open, drag and drop access to the file path, open the instance window, arbitrary drag a file to the window, will receive the file path information for the Next drag-and-drop to open files with ease.