Hi All,
My question is one of that I made a watermark, but am unsure of how to scale it down to say 80% of the original size of the watermark and make that one go onto the image instead. What I have currently work, but, of course, is at 100% of it's original size.
I also coded it so it would be centered in the middle of the image that the watermark goes on, so that part already works.
What I have below is code I already have.
Thank you very much for your help!
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You can draw the watermark at a specified location and with a specified size by creating a Rectangle and passing it to Graphics.DrawImage():
http://msdn.microsoft.com/
Something like:
Dim sz As New Size(Watermark.Width * 0.8, Watermark.Height * 0.8)
Dim rc As New Rectangle(New Point(imgOutWidth / 2 - sz.Width / 2, imgOutHeight / 2 - sz.Height / 2), sz)
g.DrawImage(Watermark, rc)
I recently had the same problem and found the following code in C#. It should however not be difficult to convert to VB.NET.
Remember to import the following:
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
// Create a bitmap of the content of the fileUpload control in memory
Bitmap originalBMP = new Bitmap(fileUpload.FileCont
// Calculate the new image dimensions
int origWidth = originalBMP.Width;
int origHeight = originalBMP.Height;
int sngRatio = origWidth / origHeight;
int newWidth = 100;
int newHeight = newWidth / sngRatio;
// Create a new bitmap which will hold the previous resized bitmap
Bitmap newBMP = new Bitmap(originalBMP, newWidth, newHeight);
// Create a graphic based on the new bitmap
Graphics oGraphics = Graphics.FromImage(newBMP)
// Set the properties for the new graphic file
oGraphics.SmoothingMode = SmoothingMode.AntiAlias;oG
// Draw the new graphic based on the resized bitmap
oGraphics.DrawImage(origin
// Save the new graphic file to the server
newBMP.Save(directory + "tn_" + filename);
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by: ToddBeaulieuPosted on 2009-07-31 at 15:49:22ID: 24993057
I don't know if this is the only way to do it, but I was intrigued by this one. It obtains a thumbnail from the original, using the new size you specify.
http://snippets.dzone.com/