Yes you can generate dynamic image. I have craeted very basic code, you can enhance as you like. I created generic handler called "RenderText.ashx" and below is the code for it. And you can use example url like "RenderText.ashx?h=100&w=100&t=hello world&f=Tahoma&s=12".
Let me know further.
<%@ WebHandler Language="C#" Class="RenderText" %>
using System;
using System.Web;
using System.Drawing;
public class RenderText : IHttpHandler {
public void ProcessRequest (HttpContext context) {
context.Response.ContentType = "image/jpg";
var height = int.Parse(context.Request["h"]);
var width = int.Parse(context.Request["w"]);
var text = context.Request["t"];
var font = context.Request["f"];
var size = int.Parse(context.Request["s"]);//px
var bmp = new Bitmap(width, height);
var g = Graphics.FromImage(bmp);
g.FillRectangle(Brushes.White, 0, 0, width, height);
g.DrawString(text, new Font(font, size, FontStyle.Regular, GraphicsUnit.Pixel), Brushes.Black, new Point(0, 0));
bmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
}
public bool IsReusable {
get {
return false;
}
}
}
Sandip R Patel
Please do not forget to click 'Mark as Answer' if this answer helps.
eihn
Member
39 Points
125 Posts
Drawing text to a image? In the least amount of code
Nov 08, 2011 10:52 AM|eihn|LINK
Im trying to draw text to an image in asp.net c#
if possible i want to have the image created with the toolbox image tool,
and then dynamically create the text on it.
Can anyone point me in the general direction? I have looked on google and this forum and none of the methods worked for me
Thanks!
sandiprp
Member
120 Points
45 Posts
Re: Drawing text to a image? In the least amount of code
Nov 16, 2011 07:45 AM|sandiprp|LINK
Yes you can generate dynamic image. I have craeted very basic code, you can enhance as you like. I created generic handler called "RenderText.ashx" and below is the code for it. And you can use example url like "RenderText.ashx?h=100&w=100&t=hello world&f=Tahoma&s=12". Let me know further.
<%@ WebHandler Language="C#" Class="RenderText" %> using System; using System.Web; using System.Drawing; public class RenderText : IHttpHandler { public void ProcessRequest (HttpContext context) { context.Response.ContentType = "image/jpg"; var height = int.Parse(context.Request["h"]); var width = int.Parse(context.Request["w"]); var text = context.Request["t"]; var font = context.Request["f"]; var size = int.Parse(context.Request["s"]);//px var bmp = new Bitmap(width, height); var g = Graphics.FromImage(bmp); g.FillRectangle(Brushes.White, 0, 0, width, height); g.DrawString(text, new Font(font, size, FontStyle.Regular, GraphicsUnit.Pixel), Brushes.Black, new Point(0, 0)); bmp.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg); } public bool IsReusable { get { return false; } } }Please do not forget to click 'Mark as Answer' if this answer helps.