http://bbs.youkuaiyun.com/topics/70188981
char sBuffer[BUFFER_SIZE];//存储图像名称的缓冲区
sBuffer[0]=0;
CFileDialog dlgOpen(TRUE,0,0,OFN_HIDEREADONLY|OFN_OVERWRITEPROMPT|OFN_ALLOWMULTISELECT);
dlgOpen.m_ofn.lpstrFile=sBuffer;//设置图像名称的缓冲区
dlgOpen.m_ofn.nMaxFile=BUFFER_SIZE;