[SDL] have to use task manager to abort program

Clangray clangray at fastmail.com
Wed Mar 15 09:44:21 PDT 2017


I made done= SDL_True put in a delay and it worked well, thanks. Also,
there is no border which is great. I think its because of my chosen
resolution. Is there any was to actually turn it off?  Murphy's Law.


--

  Gray Family

  clangray at fastmail.com







On Wed, Mar 15, 2017, at 11:23 AM, Mason Wheeler wrote:

> The code looks pretty straightforward.  There are three reasons why it
> might not be quitting for you.
> 

> 1) Most likely: you're never getting the SDL_QUIT event.

> 2) SDL_DestroyRenderer is never returning for some reason.

> 3) SDL_DestroyWindow is never returning for some reason.

> 

> Probably #1 though.  Have you tried running it under a debugger to
> check on what's happening?
> 

> Mason

> **From:** speartip <clangray at fastmail.com> **To:**
> sdl at lists.libsdl.org **Sent:** Wednesday, March 15, 2017 9:46 AM
> **Subject:** [SDL] have to use task manager to abort program
> 

> What am I doing wrong here? This is lifted code. When the program runs
> it produces a black screen with a geometric pattern which is fine. But
> it sticks, it can only abort with task manager:
>  Second, it has no border (which is what I want) but I would like to
>  be able to toggle that rather than just watch it disappear b/c I use
>  use 1920 x 1080 res.
> 

> 

> 

> 

> 

> 

> 

> 

> 

> 
> Code:

> #include

>  #include

>  using namespace std;

> 

>  int main(int argc, char* argv[])

>  {

>     if (SDL_Init(SDL_INIT_VIDEO) == 0) {

>             SDL_Window* window = NULL;

>             SDL_Renderer* renderer = NULL;

> 

>             if (SDL_CreateWindowAndRenderer(1920, 1080, 0, &window,
>             &renderer) == 0) {
>                 SDL_bool done = SDL_FALSE;

> 

>                 while (!done) {

>                     SDL_Event event;

> 

>                     SDL_SetRenderDrawColor(renderer, 0, 0, 0,
>                     SDL_ALPHA_OPAQUE);
>                     SDL_RenderClear(renderer);

> 

>                     SDL_SetRenderDrawColor(renderer, 0, 0, 255,
>                     SDL_ALPHA_OPAQUE);
>                     SDL_RenderDrawLine(renderer, 320, 200, 300, 240);
>                     SDL_RenderDrawLine(renderer, 300, 240, 340, 240);
>                     SDL_RenderDrawLine(renderer, 340, 240, 320, 200);
>                     SDL_RenderPresent(renderer);

> 

>                     while (SDL_PollEvent(&event)) {

>                         if (event.type == SDL_QUIT) {

>                             done = SDL_TRUE;

>                         }

>                     }

>                 }

>             }

> 

>             if (renderer) {

>                 SDL_DestroyRenderer(renderer);

>             }

>             if (window) {

>                 SDL_DestroyWindow(window);

>             }

>         }

>         SDL_Quit();

>          return 0;

> 

>  }

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