Develop Reference

Having Trouble Accessing an Embedded Resource [duplicate]

I have a game application in Visual Studio 2012 C#. I have all the .png images I am using in the Resources file of the project.
Have you any idea why I can access all the files but one by using Properties.Resources?
I checked the full filePath and it's set to the resources folder. And it's added in the program as I did Add -> Existing Item and added the image.
It looks just like the other images. I have no idea why it's not loading. I need this since I need to send a .exe by email to my lecturer and without this image the project is nothing!
I added this in the resource file
internal static System.Drawing.Bitmap grid_fw {
get
{
object obj = ResourceManager.GetObject("grid.fw", resourceCulture);
return ((System.Drawing.Bitmap)(obj));
}
}
and although now grid is available, it is returning null :/

Found from: Properties.Resources the icon name does not appear in the intellisense
You also need to add the icon to the Resources.resx file. Open it in
Visual Studio and drag your icon into the Icons menu of the resx and
it will become available.
Also, see Adding and Editing Resources (Visual C#)

You can get a reference to the image the following way:
Image myImage = Resources.yourImage;
If you want to make a copy of the image, you'll need to do the following:
Bitmap bmp = new Bitmap(Resources.yourImage);
Don't forget to dispose of bmp when you're done with it. If you don't know the name of the resource image at compile-time, you can use a resource manager:
ResourceManager rm = Resources.ResourceManager;
Bitmap yourImage = (Bitmap)rm.GetObject("yourImage");
The benefit of the ResourceManager is that you can use it where Resources.myImage would normally be out of scope, or where you want to dynamically access resources. Additionally, this works for sounds, config files, etc.

Using an image included in project

I've added an image logo.bmp into my project, but I can't figure out how to assign it to an Image type. I've started by creating the variabale:
public static Image logo { get; set; }
but I can't figure out how to assign my image to it. This is what I have right now:
logo = Image.FromFile("logo.bmp");
But that assumes the image is in the directory of the .exe. What is the correct way to do this?

You can use System.Reflection.Assembly.GetManifestResourceStream to load a resource from a loaded assembly.
First you must make sure that the file in your Visual Studio project is actually being embedded in the assembly itself. Right click on the file and select Properties, then make sure that Build Action is Embedded Resource.
Now you can call Assembly.GetManifestResourceStream from code in that same assembly and specify the resource name with a fully qualified namespace, such as "YourSolution.YourProject.Images.logo.bmp".
The Image class you are using has a method to load from a stream called Image.FromStream().
So here is a code snippet of what you might do:
Image image;
var stream = Asssembly.GetExecutingAssembly().GetManifestResourceStream("MySolution.MyProject.Images.logo.bmp");
image = Image.FromStream(stream);
Just keep in mind that you may need to dispose the stream separately from the image when loaded this way.

The Assembly class is part of the System.Reflection namespace. An alternative for using Assembly.GetExecutingAssembly() is
typeof(YourClassName).Assembly.GetManifestResourceStream("path.to.your.resource")
This way you can use a type to determine from which assembly you would like to access a resource.

Portability worries because of custom cursor path in C#

I am using a custom cursor named hand2.cur in my C#-WPF application. I have added the cursor to a folder named Images which has all the images that I use in my application. However I've realized that I cannot add relative path to use my custom cursor as:
Cursor newCur = new Cursor("Images\\hand2.cur");
window.Cursor = newCur;
So I used this:
string absolute = System.IO.Path.GetFullPath("hand2.cur");
Cursor newCur = new Cursor(absolute);
window.Cursor = newCur;
This tries to find the hand2.cur file in the \bin\Release folder. So I added the file there and I got it working.
But the problem is, if I Publish this application and use it on a different computer, it does not work. Now the problem is with the cursor file path, because if I deploy it after commenting those 3 lines, it works correctly. So what do I do to rectify this problem?
I am using other images from the Image folder in my XAML code and they seem to port fine. But then again my knowledge of WPF is limited so if anyone has any ideas, that would help.
EDIT: I have added my Images folder to the project. I have also set the Build Action of the cursor file hand2.cur to Embedded Resource. However when I use the following two lines, I get an XAMLParseException.
System.Windows.Resources.StreamResourceInfo info = Application.GetResourceStream(new Uri("pack://application:,,,/Slideshow;component/Images/hand2.cur"));
window.Cursor = new System.Windows.Input.Cursor(info.Stream);
The Inner Exception field when I view the details of the error reads: {"Cannot locate resource 'images/hand2.cur'."}

You could make the cursor a resource in your app/assembly and then use GetResourceStream with the pack Uri to the resources location. Pass the Stream of the StreamResourceInfo to the ctor of the Cursor. e.g.
var info = Application.GetResourceStream(new Uri("pack://application:,,,/Images/hand2.cur"));
var cursor = new Cursor(info.Stream);

I've got this working after I added the cursor file hand2.cur to my Resource1.resx resource file. Then I used the following statement in my code:
window.Cursor = new Cursor(new System.IO.MemoryStream(MyNameSpace.Resource1.hand2));

PNG and jpg images not appearing in C# application

I have a problem with displaying certain images in my application using C#. I am using the Image class to specify the location and the BitmapImage to specify the source. The UriSource is relative and I just specify the name. It worked for some images, but for others, the image simply does not appear. My image instance is 35x35 big and another is 100x100 big (pixels).
Anyone knows why this might be occurring and how to fix it?
Thanks.
Here's the code I used:
Image removeImage = new Image();
removeImage.HorizontalAlignment = HorizontalAlignment.Left;
removeImage.VerticalAlignment = VerticalAlignment.Top;
removeImage.Margin = new Thickness(490, 10, 0, 0);
removeImage.Width = 35;
removeImage.Height = 35;
BitmapImage source = new BitmapImage();
source.BeginInit();
source.UriSource = new Uri("delete.png", UriKind.RelativeOrAbsolute);
source.EndInit();
removeImage.Source = source;
removeImage.Stretch = Stretch.None;
removeImage.Visibility = Visibility.Visible;
removeImage.MouseDown += new MouseButtonEventHandler(removeImage_MouseDown);

Not sure about the location of image files. If images are in your current project folder then you have to set Copy To Output Directory=Copy Always property of image file from Properties Windows.

The best way that I know of to diagnose a problem like that (assuming a quick peer review of the code gets you nowhere), is to use ProcessMonitor: http://technet.microsoft.com/en-us/sysinternals/bb896645
You can use this tool to monitor all of the file activity on your machine (make sure to use the include/exclude filters to limit the noise).
It's very likely that the reason that the images are not showing up is because your application is looking for them in the wrong place (either they didn't get copied, or the relative path is off).
ProcessMonitor will log every attempt that Windows makes to access your .jpg (whether it fails or succeeds). If you search for your file name in the log, you should find it, probably along with an error message, and the full path that Windows was using to open the file.
The most common results I see are
Path that was actually being used was different from the path you needed.
The path was correct, but your files weren't there (build/copy/install problem)
The path was correct, but your web app did not have permissions to read the file.
In all those cases, ProcessMonitor will show you what happened.

two project in the same solution image url problem

I have two projects on my solution and I want to use other project pictures dynamically How can I link to other project picture (using imageurl property)
System.Web.UI.WebControls.Image imd = new System.Web.UI.WebControls.Image();
imd.Width = 220;
imd.Height = 215;
imd.ImageUrl = "~/Content/Images/Attachments/test.png;
pnlattachment.Controls.Add(imd);

To access an image from another project, you'd have to embed that image as an embedded resource into the assembly and access it using GetWebResourceUrl: http://msdn.microsoft.com/en-us/library/system.web.ui.clientscriptmanager.getwebresourceurl.aspx
Or, if we are talking two web sites, you could use the ../../ notation to access the appropriate directory, since ~ only works in the context of the current virtual directory.
HTH.