Load Image File
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Hello. I know I shouldn't come for such a simple problem, but I don't understand how to load an image. It was easy XNA, but regulaly is ...hard? I have an image file in the solution explorer under folders "Content" and "Sprites". Say the image is myImage. Whenever I declare a bitmap and then try to load in the public Form1 method, it always gives me an error. How do I load this image. (Does it matter the type of file?) Thanks in advance.
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MasterSharp, Is this image static?, eg do you ever need to change it? If not, just use a picture box and load the image that way. Also, Whats the error? Regards, Gareth
It's not static, but I don't really intend to change it. Do I have to use a picturebox? Can I just load it anywhere (I have multiple images with the for loop later...)
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Hello. I know I shouldn't come for such a simple problem, but I don't understand how to load an image. It was easy XNA, but regulaly is ...hard? I have an image file in the solution explorer under folders "Content" and "Sprites". Say the image is myImage. Whenever I declare a bitmap and then try to load in the public Form1 method, it always gives me an error. How do I load this image. (Does it matter the type of file?) Thanks in advance.
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:confused::confused: You load an image file using Image.FromFile() or Image.FromStream(). The former locks the file until the image gets disposed of. You can also embed an image as a resource, and load it from there when needed. :)
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:confused::confused: You load an image file using Image.FromFile() or Image.FromStream(). The former locks the file until the image gets disposed of. You can also embed an image as a resource, and load it from there when needed. :)
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I still get the error.
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I still get the error.
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What error? Please try to provide good information if you want to get good replies. use a try-catch construct, catch the Exception, and look at Exception.ToString(). It will show a message, extra details, and a stack traceback. The first class.method with a linenumber is the source line you should look at. I hope you told Visual Editor to always display line numbers? (menu Tools/Options/ TextEditor...). :)
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What error? Please try to provide good information if you want to get good replies. use a try-catch construct, catch the Exception, and look at Exception.ToString(). It will show a message, extra details, and a stack traceback. The first class.method with a linenumber is the source line you should look at. I hope you told Visual Editor to always display line numbers? (menu Tools/Options/ TextEditor...). :)
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This month's tips: - before you ask a question here, search CodeProject, then Google; - the quality and detail of your question reflects on the effectiveness of the help you are likely to get; - use PRE tags to preserve formatting when showing multi-line code snippets.
I know ehere it is. It's when I set the Bitmap previously declared to be a new Bitmap with a file extension. The error: ArgumentException was unhandled. Parameter is not valid.
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I know ehere it is. It's when I set the Bitmap previously declared to be a new Bitmap with a file extension. The error: ArgumentException was unhandled. Parameter is not valid.
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MasterSharp wrote:
a new Bitmap with a file extension
there is no such thing as a bitmap with a file extension, only files have an extension. I'm guessing you are doing something like
new Bitmap(filespec+".JPG")and it throws the ArgumentException, so you must: 1. look at the exact value of the parameter you have there; is it a valid path? 2. if relative path is used, is the current directory at that point what you expect? 3. check that file exists 4. check that file contains a valid image (does it show a thumbnail in Windows Explorer). :)Luc Pattyn [Forum Guidelines] [My Articles]
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MasterSharp wrote:
a new Bitmap with a file extension
there is no such thing as a bitmap with a file extension, only files have an extension. I'm guessing you are doing something like
new Bitmap(filespec+".JPG")and it throws the ArgumentException, so you must: 1. look at the exact value of the parameter you have there; is it a valid path? 2. if relative path is used, is the current directory at that point what you expect? 3. check that file exists 4. check that file contains a valid image (does it show a thumbnail in Windows Explorer). :)Luc Pattyn [Forum Guidelines] [My Articles]
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Do I need te file extension or not? (jpg, png ... ?)
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Do I need te file extension or not? (jpg, png ... ?)
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This is it:
Btimap myBitmap; public Form1 { myBitmap = new Bitmap("Content/Sprites/myImage.jpg"); }It doesn't work, when the file is under those folders in the explorer, WITH that name.- I love D-flat!
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This is it:
Btimap myBitmap; public Form1 { myBitmap = new Bitmap("Content/Sprites/myImage.jpg"); }It doesn't work, when the file is under those folders in the explorer, WITH that name.- I love D-flat!
That is not the correct path. When visual studio builds it places your executable in the bin directory. ../../Content/Sprites/myImage.jpg might work but the easiest thing to do is change your project settings to move the images to the bin directory on compile. However, I usually set the options to embed in the assemble and the use the GetManifestResourceStream method from the Assembly class to retrieve the streams at runtime.
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Do I need te file extension or not? (jpg, png ... ?)
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A file extension is not mandatory; AFAIK GDI+ recognizes the image formats it supports without needing the extension for that, so the only thing that matters is the filespec correctly points to an existing and valid file. :)
Luc Pattyn [Forum Guidelines] [My Articles]
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This is it:
Btimap myBitmap; public Form1 { myBitmap = new Bitmap("Content/Sprites/myImage.jpg"); }It doesn't work, when the file is under those folders in the explorer, WITH that name.- I love D-flat!
So the suspicious things are under my earlier points 1. are slashes valid folder separators on your system? 2. this is a relative path, is curdir what you think it is? :)
Luc Pattyn [Forum Guidelines] [My Articles]
This month's tips: - before you ask a question here, search CodeProject, then Google; - the quality and detail of your question reflects on the effectiveness of the help you are likely to get; - use PRE tags to preserve formatting when showing multi-line code snippets.