Mercurial > sdl-ios-xcode
view test/checkkeys.c @ 2355:eec14ed2bb18 gsoc2008_iphone
These files contain the events related functions for the UIKit video driver. Right now this is just UIKit_PumpEvents.
author | Holmes Futrell <hfutrell@umail.ucsb.edu> |
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date | Thu, 17 Jul 2008 22:48:23 +0000 |
parents | 95586dfe1992 |
children | 95352c671a6e |
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/* 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_LGUI) printf(" LGUI"); if (mod & KMOD_RGUI) printf(" RGUI"); 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: scancode %d = %s, keycode 0x%08X = %s ", pressed ? "pressed " : "released", sym->scancode, SDL_GetScancodeName(sym->scancode), sym->sym, SDL_GetKeyName(sym->sym)); } else { printf("Unknown Key (scancode %d = %s) %s ", sym->scancode, SDL_GetScancodeName(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"); } static void PrintText(char *text) { printf("Text: %s\n", text); } 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); } /* 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_TEXTINPUT: PrintText(event.text.text); break; case SDL_MOUSEBUTTONDOWN: /* Any button press quits the app... */ case SDL_QUIT: done = 1; break; default: break; } } SDL_Quit(); return (0); }