view test/checkkeys.c @ 1768:814f9f2c7a33

Fixed bug #80 Date: 21 Apr 2003 17:20:20 +0100 From: Alan Swanson <swanson@uklinux.net> Subject: [SDL] New XFree 4.3 Video Mode Patch If you look at the unsorted list of modes returned by X, here's mine; 1280 x 1024 @ 85.0 > 1024 x 768 @ 100.3 > USER 800 x 600 @ 125.5 > SET 640 x 480 @ 124.9 > 1280 x 1024 @ 75.0 ] 1280 x 1024 @ 60.0 ] 1280 x 960 @ 85.0 ] X11 1280 x 960 @ 60.0 ] AUTO 1152 x 864 @ 75.0 ]=20 1152 x 768 @ 54.8 ] 960 x 720 @ 120.0 ] ... 640 x 400 @ 85.1 ] 256k 576 x 432 @ 150.0 ] 249k PIXEL 640 x 350 @ 85.1 ] 224k COUNT 576 x 384 @ 109.6 ] 221k ... The user set modes come first followed by X set modes which are ordered by decreasing number of pixels and refresh. The reason why every other library or program not using SDL working is due to SDL scanning the modes in reverse getting X11 provided modes modes with the lowest refresh.
author Sam Lantinga <slouken@libsdl.org>
date Fri, 05 May 2006 05:50:26 +0000
parents 7c7ddaf195bf
children 782fd950bd46 c121d94672cb
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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);
			else
				printf(" (0x%X)", 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);
}