add Watermark Image - CSharp System.Drawing.Imaging

CSharp examples for System.Drawing.Imaging:Bitmap

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Description

add Watermark Image

Demo Code


using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing;
using System.IO;/*ww  w .  j  a v  a2s . c o  m*/
using System.Collections;
using System;

public class Main{

        public static void addWatermarkImage(Graphics picture, string WaterMarkPicPath, string _watermarkPosition, int _width, int _height)
        {
            Image watermark = new Bitmap(WaterMarkPicPath);

            int xpos = 0;
            int ypos = 0;

            int w = watermark.Width;
            int h = watermark.Height;

            switch (_watermarkPosition)
            {
                case "WM_TOP_LEFT":
                    xpos = 0 + 10;
                    ypos = 0 + 10;
                    break;
                case "WM_TOP_RIGHT":
                    xpos = _width - w - 10;
                    ypos = 0 + 10;
                    break;
                case "WM_BOTTOM_RIGHT":
                    xpos = _width - w - 10;
                    ypos = _height - h - 10;
                    break;
                case "WM_BOTTOM_LEFT":
                    xpos = 0 + 10;
                    ypos = _height - h - 10;
                    break;
                case "WM_BOTTOM_MIDDLE":
                    xpos = _width / 2 - w / 2;
                    ypos = _height - h - 10;
                    break;
                case "WM_TOP_MIDDLE":
                    xpos = _width / 2 - w / 2;
                    ypos = 0 + 10;
                    break;
            }

            picture.DrawImage(watermark, xpos, ypos, w, h);


            watermark.Dispose();
        }
}

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