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SDL libraries

Started by nullsquared Sep 4, 2005 at 10:13 AM 4 replies 950+ views

Original Post

Sep 4, 2005 at 10:13 AM

Hi all... ummm I'm new to SDL and I made this little game with moving people in a simple background, but I wanted to use other formats other than BMPs for the background... So I saw this SDL_image.h(I think) file and included it, and then I get an this: undefined (Linker error) linking to Load_IMG??? It also happens when I add SDL_mixer.h and other SDL extesnions... Sorry if this is really easy, I just dont know... thanks in advance.

Koshmaar

Sep 4, 2005 at 10:19 AM

You have to link with SDL_Image, in the same way that you're linking with SDL.

So, if you're using GCC/MinGW, add -lSDL_Image, and if you're using Visual Studio, add SDL_Image.lib to Project properties->Linker. You may also need to add directories with those linker files, to compiler's library search path.

SiCrane

Sep 4, 2005 at 10:20 AM

In order to use additional SDL libraries you need to download the whole library not just the headers. For example, you can go to the SDL_image page, get the development package, and add SDL_image.h to your included headers and SDL_image.lib to your libraries. For a more detailed response you might want to mention what compiler you are using.

nullsquared

Sep 4, 2005 at 10:30 AM

Thanks. For some reason I'm lazy today so I just grabbed the header and started to do nothing. LOL thanks again.

Peregrin

Sep 4, 2005 at 10:33 AM

Also note that, assuming you are using Windows, you will need to place the relevant DLLs (in this case SDL_image.dll), where they can be accessed by the executable you create. This means either copying them to a folder that's in your system's path (e.g. C:\Windows\system32), or placing them in the same folder as your executable.

nullsquared

Sep 4, 2005 at 11:30 AM

Yeah, thanks, I "kinda" understood that after got 3 errors. LOL.

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