Graphics in ASP

[Barry]

Hi

Can someone tell why i am not able to print the graphics text in the
following source (it is basically a copy of the ASPDraw sample from
Microsoft)

<%@ Import Namespace="System.Drawing" %>
<%@ Import Namespace="System.Drawing.Imaging" %>

<script language="C#" runat="server">

void Page_Load(Object sender, EventArgs e)
{

int width = 300;
int height = 200;
// Create a Bitmap instance
Bitmap objBitmap = new Bitmap(width, height);
Graphics objGraphics = Graphics.FromImage(objBitmap);

SolidBrush blackBrush = new SolidBrush(Color.Black);

// Put a white backround in
objGraphics.FillRectangle(new SolidBrush(Color.White), 0, 0, width,
height);

// we need to create fonts for our legend and title
Font fontLegend = new Font("Verdana", 10);
Font fontTitle = new Font("Verdana", 15, FontStyle.Bold);

int titleHeight = fontTitle.Height + 15;

// Create the title, centered
StringFormat stringFormat = new StringFormat();
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;

objGraphics.DrawString("Is this Graphics", fontTitle, blackBrush,
new Rectangle(0, 0, width, titleHeight), stringFormat);

// clean up...
objGraphics.Dispose();

}

</script>

Barry

 

[Peter Rilling]

From an initial look it does not look like you are outputing the image to
any stream. Simply creating the image in memory does not push it out to the
browser. Take a look at this article --
http://www.codeproject.com/useritems/Dynamic_Image_-_Extention.asp

 

[Guest]

It’s easy:
1. Add an Image Control to your page.
2. Add the following code below objGraphics.Dispose();
objBitmap.Save("C:\\Inetpub\\wwwroot\\Site_Name\\Image.bmp",
ImageFormat.Bmp);
Image1.ImageUrl = "C:\\Inetpub\\wwwroot\\Site_Name\\Image.bmp";

Brad.

 

[Guest]

Also, if you get a GDI+ Error message with the code I just gave you. It's
probably your directory permissions (IIS needs write access).

Brad.