SDL按键检测

最新推荐文章于 2025-03-11 23:15:44 发布

原创最新推荐文章于 2025-03-11 23:15:44 发布 · 1.9k 阅读

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#SDL #SDL_WaitEvent

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检测ESC键的按下抬起，抬起后退出窗口。

#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>

int SDL_main(int argc, char * argv[])
{
	SDL_Window *window = NULL;

	if(SDL_Init(SDL_INIT_VIDEO|SDL_INIT_AUDIO)==-1)
	{
		fprintf(stderr, "SDL_Init() failed\n");
		exit(-1);
	}
	atexit(SDL_Quit);


	window = SDL_CreateWindow("Window Title", 
		SDL_WINDOWPOS_UNDEFINED,
		SDL_WINDOWPOS_UNDEFINED, 
		640,480, SDL_WINDOW_OPENGL);	

	if(NULL==window){
		fprintf(stderr, "SDL_CreateWindow() failed\n");
		exit(-1);
	}
	
	SDL_ShowWindow(window);	

	SDL_Event event;
	Uint32 exit = 0;
	while( !exit )
	{		
		SDL_WaitEvent(&event);
		switch( event.type )
		{
			case SDL_KEYUP:
				if( event.key.keysym.sym == SDLK_ESCAPE)
				{
					exit = 1;
				}
				break;

			default: 
				break;
		}

	}


	SDL_DestroyWindow(window);
	window = NULL;

	
	return 0;
}