view test/checkkeys.c @ 1207:c9ec00d3e8bc

To: sdl@libsdl.org From: Christian Walther <cwalther@gmx.ch> Date: Wed, 21 Dec 2005 13:39:39 +0100 Subject: [SDL] Another mouse bug patch for Mac OS X Oh my, yet another change in the quartz mouse handling code! :) The attached patch fixes the following bug: Calling SDL_WarpMouse() while the cursor is invisible and grabbed should only update SDL's internal mouse location, not try to warp the system cursor (which is not at that location, but fixed in the middle of the window). Otherwise, the next mouse motion event is wrong. Please apply. Thanks Christian
author Ryan C. Gordon <icculus@icculus.org>
date Wed, 21 Dec 2005 18:02:36 +0000
parents be9c9c8f6d53
children 7c7ddaf195bf
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line source


/* Simple program:  Loop, watching keystrokes
   Note that you need to call SDL_PollEvent() or SDL_WaitEvent() to 
   pump the event loop and catch keystrokes.
*/

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

#include "SDL.h"

/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
static void quit(int rc)
{
	SDL_Quit();
	exit(rc);
}

static void print_modifiers(void)
{
	int mod;
	printf(" modifiers:");
	mod = SDL_GetModState();
	if(!mod) {
		printf(" (none)");
		return;
	}
	if(mod & KMOD_LSHIFT)
		printf(" LSHIFT");
	if(mod & KMOD_RSHIFT)
		printf(" RSHIFT");
	if(mod & KMOD_LCTRL)
		printf(" LCTRL");
	if(mod & KMOD_RCTRL)
		printf(" RCTRL");
	if(mod & KMOD_LALT)
		printf(" LALT");
	if(mod & KMOD_RALT)
		printf(" RALT");
	if(mod & KMOD_LMETA)
		printf(" LMETA");
	if(mod & KMOD_RMETA)
		printf(" RMETA");
	if(mod & KMOD_NUM)
		printf(" NUM");
	if(mod & KMOD_CAPS)
		printf(" CAPS");
	if(mod & KMOD_MODE)
		printf(" MODE");
}

static void PrintKey(SDL_keysym *sym, int pressed)
{
	/* Print the keycode, name and state */
	if ( sym->sym ) {
		printf("Key %s:  %d-%s ", pressed ?  "pressed" : "released",
					sym->sym, SDL_GetKeyName(sym->sym));
	} else {
		printf("Unknown Key (scancode = %d) %s ", sym->scancode,
					pressed ?  "pressed" : "released");
	}

	/* Print the translated character, if one exists */
	if ( sym->unicode ) {
		/* Is it a control-character? */
		if ( sym->unicode < ' ' ) {
			printf(" (^%c)", sym->unicode+'@');
		} else {
#ifdef UNICODE
			printf(" (%c)", sym->unicode);
#else
			/* This is a Latin-1 program, so only show 8-bits */
			if ( !(sym->unicode & 0xFF00) )
				printf(" (%c)", sym->unicode);
#endif
		}
	}
	print_modifiers();
	printf("\n");
}

int main(int argc, char *argv[])
{
	SDL_Event event;
	int done;
	Uint32 videoflags;

	/* Initialize SDL */
	if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) {
		fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError());
		return(1);
	}

	videoflags = SDL_SWSURFACE;
	while( argc > 1 ) {
		--argc;
		if ( argv[argc] && !strcmp(argv[argc], "-fullscreen") ) {
			videoflags |= SDL_FULLSCREEN;
		} else {
			fprintf(stderr, "Usage: %s [-fullscreen]\n", argv[0]);
			quit(1);
		}
	}

	/* Set 640x480 video mode */
	if ( SDL_SetVideoMode(640, 480, 0, videoflags) == NULL ) {
		fprintf(stderr, "Couldn't set 640x480 video mode: %s\n",
							SDL_GetError());
		quit(2);
	}

	/* Enable UNICODE translation for keyboard input */
	SDL_EnableUNICODE(1);

	/* Enable auto repeat for keyboard input */
	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY,
	                    SDL_DEFAULT_REPEAT_INTERVAL);

	/* Watch keystrokes */
	done = 0;
	while ( !done ) {
		/* Check for events */
		SDL_WaitEvent(&event);
		switch (event.type) {
			case SDL_KEYDOWN:
				PrintKey(&event.key.keysym, 1);
				break;
			case SDL_KEYUP:
				PrintKey(&event.key.keysym, 0);
				break;
			case SDL_MOUSEBUTTONDOWN:
				/* Any button press quits the app... */
			case SDL_QUIT:
				done = 1;
				break;
			default:
				break;
		}
	}

	SDL_Quit();
	return(0);
}