[SDL] Re: No key pressed

[Bruce @ OpenGL]

Thanks James, I will consider the use of static variables. I could have 
used them, thnxs again.

[]s
Bruce

James Gregory wrote:

>On Wed, 28 Jan 2004 19:19:52 -0200, Bruce @ OpenGL wrote:
>
>  
>
>>Hi folks,
>>
>>To see which key was pressed, I use SDL_GetKeyState in this way:
>>
>>Uint8* keys;
>>keys = SDL_GetKeyState(NULL);
>>
>>then I check here:
>>
>>if (keys[SDLK_UP])
>>  { do something; }
>>
>>    
>>
>
>As I understand it, SDL_GetKeyState() probably doesn't work in the way
>that you think it does. You only ever need to call it once, at the
>beginning of your program, and from there on in it will always contain the
>current state of the keyboard (as long as you keep pumping/polling events).
>
>Others have explained how you misunderstand the alternative of dealing
>with key events.
>
>Also, as for not liking global variables - if you're using C++ and not
>C, do you know about static variables? You declare them inside the scope
>of a function, but they save their value between each time the function is
>called.
>
>	James
>
>
>
>
>
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>  
>
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