对话框之间函数互调

在CImageArea类中调用CGIFJPGDlg类的DrawSelectedImage函数：

1. 在CImageArea类的.cpp文件中include
CGIFJPGDlg类的头文件

#include "GIFJPGDlg.h"

2. 在要调用的函数中使用下面的语句：

void CImageArea::OnPaint()

{

CPaintDC dc(this); // device context for painting

// TODO: Add your message handler code here

// Do not call CStatic::OnPaint() for painting messages

CGIFJPGDlg* pWnd = static_cast<CGIFJPGDlg*>(GetParent());

pWnd->DrawSelectedImage();

}