Background Image of a form

[NekoManu]

I'm trying to set/change teh background image of a form at runtime. I found this code, but I always get the error: "Invalid parameter used".

 

dlgStartUp.BackgroundImage = new Bitmap("dictionary.jpg");

 

Can someone tell me how to get a jpg on the form please?

[Iceplug]

Does it work if you use a bmp instead? It could be a problem with the JPG. Have you tried other JPGs?

[NekoManu]

No it does not work with a bmp.

[PlausiblyDamp]

Where is the image located? Have you tried specifying a full path to the file?

[DiverDan]

Maybe you could try this:

Put the .jpg bitmap file in the Bin directory of your project then call the bitmap with:

dlgStartUp.BackgroundImage = Image.FromFile(Application.StartupPath & "\dictionary.jpg")

 

or if dlgStartUp is a form then

Me.BackgroundImage = Image.FromFile(Application.StartupPath & "\dictionary.jpg")

 

Then remember to include the .jpg file in the project's distributation package.

[NekoManu]

The image is in the resource.

[PlausiblyDamp]

Do you mean the image is included as an embedded resource within the executable? If so then clicky

[NekoManu]

This is what I tried:

this.BackgroundImage = new Bitmap(GetType().Assembly.GetManifestResourceStream("Thai_Dictionary.dictionary.jpg"));

 

Where "Thai_Dictionary" = the name of the namespace/project/solution

And "dictionary.jpg" = the name of the image

 

I alsways get the following:

'null' is not a valid value for 'stream'.

[PlausiblyDamp]

Is the .jpeg in a sub-folder of your project? If so C# requires you to use Namespace.FolderName.ResourceName - I've just updated the earlier link to include both a VB and a C# version.

[NekoManu]

I tried your C# example and that works. When I try my project it does NOT work. I tried it with space, underscore, .... nothing works.

 

My image is just under the namespace.

 

I included the project, so if you like you can have a look. I must warn you the thing is full of test and most of them don't work.

ThaiDictionary.zip

Edited September 26, 2004 by PlausiblyDamp

[PlausiblyDamp]

Couldn't build the app as it's missing a few references, however make sure that the build action for the jpeg is set to 'Embedded Resource' in the property window.

Also it may be worth mentioning that you are using a beta version of vs.net and as such things may differ from the current release.

[NekoManu]

Thank you very much!

 

The 'Embedded Resource' was indeed the problem.

[NekoManu]

I tried it in a test program and it worked.

 

Today I put it in my library. This is a different namespace and a different solution. As you can guess this does not work anymore.

 

Any idea's on how to solve this?

 

The thing is that I have a property on soSytem with the name of the image. When I create the StartUp form, I want to load the image and then display it.