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ktola  
#1 Posted : Wednesday, May 12, 2004 12:11:00 AM(UTC)
ktola

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Posts: 6

Good Morning -

I am attempting to dynamically write semi-transparent text on an image and then resize the images to multiple smaller sizes. I have the resizing part down, however I cannot figure out how to - using the Interop in C# - write semi-transparent text on the image. You do it for the trial version of this product so I know it can be done. Can you please help?
Thanks.
Fedor  
#2 Posted : Wednesday, May 12, 2004 2:05:00 AM(UTC)
Fedor

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In ASP.NET you can use following code for it:

Code:
<%@ Page Language="c#"%>
<script language="c#" runat="server">
private void Page_Load(object sender, System.EventArgs e) {
	//Create Bitmap object
	Aurigma.GraphicsMill.Bitmap bitmap = new Aurigma.GraphicsMill.Bitmap();
	bitmap.LoadFromFile(Server.MapPath("mountain.jpg"));

	bitmap.Graphics.Engine = Aurigma.GraphicsMill.DrawingEngine.DrawingEngineGdiplus;
	bitmap.Graphics.Antialiasing = true;

	//Adjust font settings
	bitmap.Graphics.TextFormat.FontSize = 40;
	bitmap.Graphics.TextFormat.FontName = "Verdana";
	bitmap.Graphics.TextFormat.IsBold = true;
	bitmap.Graphics.TextFormat.IsItalic = false;
	bitmap.Graphics.TextFormat.IsUnderlined = true;
	
	//Create semi-transparent red color using System.Drawing
	//bitmap.Graphics.TextFormat.FontColor = 
	//	System.Drawing.Color.FromArgb(60, System.Drawing.Color.Red).ToArgb();
	
	//Create semi-transparent red color using Graphics Mill
	bitmap.Graphics.TextFormat.FontColor = 
		bitmap.color.CreateArgb(60, 255, 0, 0);

		
	bitmap.Graphics.TextFormat.HorizontalAlignment = 
		Aurigma.GraphicsMill.HorizontalAlignment.HorizontalAlignmentCenter;

	bitmap.Graphics.DrawText("Aurigma", 150, 0, 0); 

	bitmap.Formats.SelectCurrent("PNG");

	//bitmap.SaveToFile(Server.MapPath("temp/result.png"));
	Response.ContentType = "image/jpeg";
	Response.BinaryWrite((byte[])bitmap.SaveToMemory());
}


Sure don't forget to put GraphicsMill20.Interop.dll in bin folder.

Edited by user Monday, December 24, 2007 5:49:29 PM(UTC)  | Reason: Not specified

Best regards,
Fedor Skvortsov
ktola  
#3 Posted : Thursday, May 13, 2004 3:00:00 AM(UTC)
ktola

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Posts: 6

Thank you very much for your help! (H)
Fedor  
#4 Posted : Thursday, May 13, 2004 3:11:00 AM(UTC)
Fedor

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I just wanted to add that you can set transparent color and directly via its hex ARGB value.

bitmap.Graphics.TextFormat.FontColor = 0x50FF0000;

50 - specifies transparency.

FF - speifies red channel value.

If you have any questions feel free to ask me. :)
Best regards,
Fedor Skvortsov
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