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Using SFont with SDL

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Started by murdock June 23, 2005 12:09 AM

10 comments, last by Drew_Benton 18 years, 10 months ago

murdock

164

Author

June 23, 2005 12:09 AM

error C3861: 'IMG_Load': identifier not found, even with argument-dependent lookup I'm getting the above error when I try to use the SFont library to load fonts. Anyone got any suggestions?



#include <stdio.h>
#include <stdlib.h>
#include "SFont.h"
#include "SDL.h"
#include "SDL_timer.h"


SFont_Font* Font;

Font = SFont_InitFont(IMG_Load("24P_Copperplate_Blue.png"));

If I try to add SDL_Image.h to the includes VS.NET complains...

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smart_idiot

1,298

June 23, 2005 12:25 AM

Do you actually have SDL_image installed?

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murdock

164

Author

June 23, 2005 01:35 AM

no, is there documentation for setting it up under VS.NET? All I can find are setups for Linux/Unix.

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Drew_Benton

1,865

June 23, 2005 01:38 AM

You use it the same way you did with SDL. Actually all you have to do is copy the SDL_Image.lib to where your SDL.lib and SDLmain.lib are, copy the SDL_Image.h file to where your SDL.h file is, and finally copy all the .dlls to either your system32 folder or the current project's directory. When all that is done, all you need to do is #include "SDL_Image.h" and you are all set!

murdock

164

Author

June 23, 2005 01:41 AM

So I can put the SDL DLL files under system32 as well?

My Bloghttp://mweston.quotaless.com/wp

murdock

164

Author

June 23, 2005 01:43 AM

Now I'm getting unresolved externals

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Drew_Benton

1,865

June 23, 2005 02:03 AM

Quote:Original post by murdock
Now I'm getting unresolved externals

Did you link in SDL_Image.lib as you did with SDL.lib and SDLmain.lib?

murdock

164

Author

June 23, 2005 02:07 AM

the SDL_Image.lib is in the same directory as the SDL.lib
SDL_image.h is in the same file as the other SDL_???.h files..

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murdock

164

Author

June 23, 2005 02:09 AM

ok if I go to project->properties then the linker tab and command line

If I add the sdl_image.lib to the additional options everything works

Is there a way to make this change more permanent so I don't have to add this for every new project?

My Bloghttp://mweston.quotaless.com/wp

Drew_Benton

1,865

June 23, 2005 02:15 AM

Quote:Original post by murdock
Is there a way to make this change more permanent so I don't have to add this for every new project?

Not really. Setting the project settings is a once per project thing. I mean you could probabally override the default program template or make your own so it is auto-linked, but that might be too much trouble.

Alternatively, you can simply link in Microsoft based compiler with the line:
#pragma comment ( lib, "SDL_Image.lib" )

So what you can do is open up your SDL.h header file and add this to the top:
#pragma comment ( lib, "SDLmain.lib" )
#pragma comment ( lib, "SDL.lib" )

In the SDL_Image.h file:
#pragma comment ( lib, "SDL_Image.lib" )

That way, those libraries are auto linked whenever you use the header files [wink] I've used methods such as those before in frameworks to "make life easier"™ Have fun!

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