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.NET Forum / Windows Forms / Drawing / June 2006scaling an image in a picturebox
I have a PictureBox control on a form that displays a bitmap. However, the bitmap rarely matches the size of the PictureBox. The different SizeMode properties don't really do it for me. In one case, it changes the size of the PictureBox itself, making it larger than the form. In another, it scales the image to the wrong aspect ratio. What's the best way to rescale this image at the proper aspect ration inside this PictureBox? Lee Crabtree You cannot do this correctly with a PictureBox. The PictureBox is a ridicuously easy control to replace however and it could be done based on my article on how to display an image in it's original aspect ratio using a transform. See the GDI+ FAQ for details.  SignatureBob Powell [MVP] Visual C#, System.Drawing Ramuseco Limited .NET consulting http://www.ramuseco.com Find great Windows Forms articles in Windows Forms Tips and Tricks http://www.bobpowell.net/tipstricks.htm Answer those GDI+ questions with the GDI+ FAQ http://www.bobpowell.net/faqmain.htm All new articles provide code in C# and VB.NET. Subscribe to the RSS feeds provided and never miss a new article. >I have a PictureBox control on a form that displays a bitmap. However, the >bitmap rarely matches the size of the PictureBox. The different SizeMode [quoted text clipped - 6 lines] > > Lee Crabtree I've read your GDI+ FAQ in the past, and it was extremely useful. Actually, the app I'm writing is a rewrite of one I wrote a while back in which I bastardized a few of your techniques. I'm trying to do it more gracefully this time. Lee Crabtree > You cannot do this correctly with a PictureBox. The PictureBox is a > ridicuously easy control to replace however and it could be done based on my > article on how to display an image in it's original aspect ratio using a > transform. > > See the GDI+ FAQ for details. > You cannot do this correctly with a PictureBox. The PictureBox is a > ridicuously easy control to replace however and it could be done based on my > article on how to display an image in it's original aspect ratio using a > transform. > > See the GDI+ FAQ for details. See the GDI+ FAQ for details. Where are they (GDI+ FAQ)??? this links are wrong Find great Windows Forms articles in Windows Forms Tips and Tricks http://www.bobpowell.net/tipstricks.htm Answer those GDI+ questions with the GDI+ FAQ http://www.bobpowell.net/faqmain.htm > What's the best way to rescale this image at the proper aspect ration > inside this PictureBox? PictureBoxSizeMode.Zoom (keeps aspect ratio) <http://msdn2.microsoft.com/de-de/library/system.windows.forms.pictureboxsizemode (VS.80).aspx> Markus Strangely, Zoom isn't included in the enumeration as the docs suggest. Lee Crabtree >> What's the best way to rescale this image at the proper aspect ration >> inside this PictureBox? [quoted text clipped - 4 lines] > > Markus > Strangely, Zoom isn't included in the enumeration as the docs > suggest. > > Lee Crabtree You need .NET Framework v2.0, it's not included in 1.1... sorry I didn't know that, too. Markus Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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