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Date: Mon, 6 Feb 2006 11:41:04 -0500 From: "mystml@adinet.com.uy" Subject: [SDL] ALT-F4 using DirectX My game isn't getting SDL_QUIT when I press ALT-F4 using the DirectX driver; it does get SDL_QUIT when I press the red X in the window. I tracked this down to DX5_HandleMessage() in SDL_dx5events.c; WM_SYSKEYDOWN is being trapped and ignored which causes Windows not to post a WM_CLOSE, hence no SDL_QUIT is being generated. The relevant code is this : /* The keyboard is handled via DirectInput */ case WM_SYSKEYUP: case WM_SYSKEYDOWN: case WM_KEYUP: case WM_KEYDOWN: { /* Ignore windows keyboard messages */; } return(0); If I comment the WM_SYSKEYDOWN case, it falls through DefWindowProc() and ALT-F4 starts working again. I'm not sure about the best way to fix this. One option is handling ALT-F4 as a particular case somehow, but doesn't sound good. Another option would be to handle WM_SYSKEYDOWN separately and breaking instead of returning 0, so processing falls through and goes to DefWindowProc which does The Right Thing (TM). This seems to be the minimal change that makes ALT-F4 work and normal keyboard input continues to work. Does this sound reasonable? Am I overlooking anything? Do I submit a patch? --Gabriel
author Sam Lantinga <slouken@libsdl.org>
date Wed, 08 Feb 2006 17:19:43 +0000
parents c9b51268668f
children 782fd950bd46 a1b03ba2fcd0
line wrap: on
line source

/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2006 Sam Lantinga

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
    License as published by the Free Software Foundation; either
    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public
    License along with this library; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga
    slouken@libsdl.org
*/

#ifndef VK_0
#define VK_0	'0'
#define VK_1	'1'
#define VK_2	'2'
#define VK_3	'3'
#define VK_4	'4'
#define VK_5	'5'
#define VK_6	'6'
#define VK_7	'7'
#define VK_8	'8'
#define VK_9	'9'
#define VK_A	'A'
#define VK_B	'B'
#define VK_C	'C'
#define VK_D	'D'
#define VK_E	'E'
#define VK_F	'F'
#define VK_G	'G'
#define VK_H	'H'
#define VK_I	'I'
#define VK_J	'J'
#define VK_K	'K'
#define VK_L	'L'
#define VK_M	'M'
#define VK_N	'N'
#define VK_O	'O'
#define VK_P	'P'
#define VK_Q	'Q'
#define VK_R	'R'
#define VK_S	'S'
#define VK_T	'T'
#define VK_U	'U'
#define VK_V	'V'
#define VK_W	'W'
#define VK_X	'X'
#define VK_Y	'Y'
#define VK_Z	'Z'
#endif /* VK_0 */

/* These keys haven't been defined, but were experimentally determined */
#define VK_SEMICOLON	0xBA
#define VK_EQUALS	0xBB
#define VK_COMMA	0xBC
#define VK_MINUS	0xBD
#define VK_PERIOD	0xBE
#define VK_SLASH	0xBF
#define VK_GRAVE	0xC0
#define VK_LBRACKET	0xDB
#define VK_BACKSLASH	0xDC
#define VK_RBRACKET	0xDD
#define VK_APOSTROPHE	0xDE
#define VK_BACKTICK	0xDF