test/checkkeys.c
author Sam Lantinga <slouken@libsdl.org>
Tue, 09 May 2006 07:26:58 +0000
changeset 1790 828a17e05192
parent 1253 7c7ddaf195bf
child 1662 782fd950bd46
child 1895 c121d94672cb
permissions -rw-r--r--
Date: Mon, 8 May 2006 14:19:30 -0700
From: Bob Ippolito
Subject: SDL trunk (r2346) and Mac OS X

The current state of the trunk doesn't quite compile on Mac OS X,
I've attached a series of patches that gets it to compile and kills a
few warnings.

sdl-trunk-r2346-dlcompat-warnings.diff:
The dlcompat thing is just loaded with incorrect type signatures ..
some of them have changed since 10.2 and others are just flat wrong.
This puts it in sync with the latest headers. People on 10.2 will get
the warnings instead of people with new kits.
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/* Simple program:  Loop, watching keystrokes
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   Note that you need to call SDL_PollEvent() or SDL_WaitEvent() to 
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   pump the event loop and catch keystrokes.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "SDL.h"
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
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static void quit(int rc)
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{
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	SDL_Quit();
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	exit(rc);
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}
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static void print_modifiers(void)
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{
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	int mod;
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	printf(" modifiers:");
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	mod = SDL_GetModState();
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	if(!mod) {
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		printf(" (none)");
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		return;
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	}
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	if(mod & KMOD_LSHIFT)
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		printf(" LSHIFT");
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	if(mod & KMOD_RSHIFT)
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		printf(" RSHIFT");
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	if(mod & KMOD_LCTRL)
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		printf(" LCTRL");
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	if(mod & KMOD_RCTRL)
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		printf(" RCTRL");
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	if(mod & KMOD_LALT)
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		printf(" LALT");
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	if(mod & KMOD_RALT)
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		printf(" RALT");
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	if(mod & KMOD_LMETA)
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		printf(" LMETA");
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	if(mod & KMOD_RMETA)
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		printf(" RMETA");
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	if(mod & KMOD_NUM)
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		printf(" NUM");
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	if(mod & KMOD_CAPS)
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		printf(" CAPS");
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	if(mod & KMOD_MODE)
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		printf(" MODE");
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}
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static void PrintKey(SDL_keysym *sym, int pressed)
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{
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	/* Print the keycode, name and state */
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	if ( sym->sym ) {
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		printf("Key %s:  %d-%s ", pressed ?  "pressed" : "released",
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					sym->sym, SDL_GetKeyName(sym->sym));
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	} else {
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		printf("Unknown Key (scancode = %d) %s ", sym->scancode,
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					pressed ?  "pressed" : "released");
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	}
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	/* Print the translated character, if one exists */
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	if ( sym->unicode ) {
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		/* Is it a control-character? */
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		if ( sym->unicode < ' ' ) {
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			printf(" (^%c)", sym->unicode+'@');
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		} else {
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#ifdef UNICODE
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			printf(" (%c)", sym->unicode);
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#else
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			/* This is a Latin-1 program, so only show 8-bits */
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			if ( !(sym->unicode & 0xFF00) )
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				printf(" (%c)", sym->unicode);
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			else
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				printf(" (0x%X)", sym->unicode);
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#endif
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		}
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	}
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	print_modifiers();
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	printf("\n");
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}
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int main(int argc, char *argv[])
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{
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	SDL_Event event;
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	int done;
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	Uint32 videoflags;
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	/* Initialize SDL */
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	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
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		fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
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		return(1);
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	}
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	videoflags = SDL_SWSURFACE;
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	while( argc > 1 ) {
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		--argc;
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		if ( argv[argc] && !strcmp(argv[argc], "-fullscreen") ) {
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			videoflags |= SDL_FULLSCREEN;
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		} else {
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			fprintf(stderr, "Usage: %s [-fullscreen]\n", argv[0]);
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			quit(1);
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		}
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	}
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	/* Set 640x480 video mode */
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	if ( SDL_SetVideoMode(640, 480, 0, videoflags) == NULL ) {
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		fprintf(stderr, "Couldn't set 640x480 video mode: %s\n",
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							SDL_GetError());
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		quit(2);
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	}
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	/* Enable UNICODE translation for keyboard input */
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	SDL_EnableUNICODE(1);
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	/* Enable auto repeat for keyboard input */
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	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY,
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	                    SDL_DEFAULT_REPEAT_INTERVAL);
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	/* Watch keystrokes */
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	done = 0;
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	while ( !done ) {
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		/* Check for events */
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		SDL_WaitEvent(&event);
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		switch (event.type) {
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			case SDL_KEYDOWN:
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				PrintKey(&event.key.keysym, 1);
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				break;
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			case SDL_KEYUP:
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				PrintKey(&event.key.keysym, 0);
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				break;
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			case SDL_MOUSEBUTTONDOWN:
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				/* Any button press quits the app... */
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			case SDL_QUIT:
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				done = 1;
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				break;
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			default:
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				break;
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		}
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	}
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	SDL_Quit();
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	return(0);
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}