[SDL] Dynamically loading SDL dlls

[Andre de Leiradella]

 > I don't want to add bloat to their game executable folder, or add 
stuff to their system folders, or PATH, etc.

SetEnvironmentVariable only changes the current process' environment. 
But you'll have to test if this environment is the one used by 
LoadLibrary. I guess it is.

Since your application is already a DLL, you can just put it together 
with all other DLLs in a separate folder. Now write another DLL, a small 
one that will change the PATH variable and load your "main" DLL using 
LoadLibrary. The other DLLs will be automatically loaded when the "main" 
DLL is loaded.

This small DLL will have to have proxy functions that will just call 
functions of your "main" DLL, whose pointers you'll obtain using 
GetProcAddress. I'm assuming that the number of functions of the bot API 
is way less than the number of SDL functions you use in your code.

I already tried to LoadLibrary SDL.dll and a few others. I found myself 
with loads of GetProcAddress and fighting with macro definitions, and 
with the impression that my code would break with the very next SDL release.

Cheers,

Andre