MFC实现在jpg图片添加文字水印位置可调整可存储实测可用

获取图片尺寸int ixm pBmp GetWidth int iym pBmp GetHeight Brush brushnew SolidBrush Color000黑字Font fontnew Font L宋体14PointF ptf ptf.X10ptf.Yiy30显示水印文字在图片下方位置确定字符长度int nLenMultiByteToWideChar CP ACP0szText1NULL0pGraph DrawString szText.AllocSysString nLen font ptf brushszText.ReleaseBuffer Color clr HBITMAP hBmp hOldBmp m pBmp GetHBITMAP clrhBmphOldBmpm ImageDemo.SetBitmap hBmp