SDL_dibevents.c
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/*
SDL - Simple DirectMedia Layer
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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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
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Lesser General Public License for more details.
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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
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Sam Lantinga
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slouken@libsdl.org
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*/
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#include "SDL_config.h"
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#define WIN32_LEAN_AND_MEAN
#include <windows.h>
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#include "SDL_main.h"
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#include "SDL_events.h"
#include "SDL_syswm.h"
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#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "../wincommon/SDL_lowvideo.h"
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#include "SDL_gapidibvideo.h"
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#include "SDL_vkeys.h"
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#ifdef SDL_VIDEO_DRIVER_GAPI
#include "../gapi/SDL_gapivideo.h"
#endif
#ifdef SDL_VIDEO_DRIVER_WINDIB
#include "SDL_dibvideo.h"
#endif
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#ifndef WM_APP
#define WM_APP 0x8000
#endif
#ifdef _WIN32_WCE
#define NO_GETKEYBOARDSTATE
#endif
/* The translation table from a Microsoft VK keysym to a SDL keysym */
static SDLKey VK_keymap[SDLK_LAST];
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static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed);
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static SDLKey Arrows_keymap[4];
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/* Masks for processing the windows KEYDOWN and KEYUP messages */
#define REPEATED_KEYMASK (1<<30)
#define EXTENDED_KEYMASK (1<<24)
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/* DJM: If the user setup the window for us, we want to save his window proc,
and give him a chance to handle some messages. */
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#ifdef STRICT
#define WNDPROCTYPE WNDPROC
#else
#define WNDPROCTYPE FARPROC
#endif
static WNDPROCTYPE userWindowProc = NULL;
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#ifdef SDL_VIDEO_DRIVER_GAPI
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WPARAM rotateKey(WPARAM key,int direction)
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if(direction ==0 ) return key;
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switch (key) {
case 0x26: /* up */
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return Arrows_keymap[(2 + direction) % 4];
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case 0x27: /* right */
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return Arrows_keymap[(1 + direction) % 4];
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case 0x28: /* down */
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return Arrows_keymap[direction % 4];
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case 0x25: /* left */
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return Arrows_keymap[(3 + direction) % 4];
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}
return key;
}
#endif
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/* The main Win32 event handler */
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LRESULT DIB_HandleMessage(_THIS, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
extern int posted;
switch (msg) {
case WM_SYSKEYDOWN:
case WM_KEYDOWN: {
SDL_keysym keysym;
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#ifdef SDL_VIDEO_DRIVER_GAPI
if(this->hidden->gapiInfo)
{
// Drop GAPI artefacts
if (wParam == 0x84 || wParam == 0x5B)
return 0;
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wParam = rotateKey(wParam, this->hidden->gapiInfo->coordinateTransform);
}
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/* Ignore repeated keys */
if ( lParam&REPEATED_KEYMASK ) {
return(0);
}
switch (wParam) {
case VK_CONTROL:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RCONTROL;
else
wParam = VK_LCONTROL;
break;
case VK_SHIFT:
/* EXTENDED trick doesn't work here */
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{
Uint8 *state = SDL_GetKeyState(NULL);
if (state[SDLK_LSHIFT] == SDL_RELEASED && (GetKeyState(VK_LSHIFT) & 0x8000)) {
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wParam = VK_LSHIFT;
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} else if (state[SDLK_RSHIFT] == SDL_RELEASED && (GetKeyState(VK_RSHIFT) & 0x8000)) {
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wParam = VK_RSHIFT;
} else {
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/* Win9x */
int sc = HIWORD(lParam) & 0xFF;
if (sc == 0x2A)
wParam = VK_LSHIFT;
else
if (sc == 0x36)
wParam = VK_RSHIFT;
else
wParam = VK_LSHIFT;
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break;
case VK_MENU:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
}
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#ifdef NO_GETKEYBOARDSTATE
/* this is the workaround for the missing ToAscii() and ToUnicode() in CE (not necessary at KEYUP!) */
if ( SDL_TranslateUNICODE ) {
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MSG m;
m.hwnd = hwnd;
m.message = msg;
m.wParam = wParam;
m.lParam = lParam;
m.time = 0;
if ( TranslateMessage(&m) && PeekMessage(&m, hwnd, 0, WM_USER, PM_NOREMOVE) && (m.message == WM_CHAR) ) {
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GetMessage(&m, hwnd, 0, WM_USER);
wParam = m.wParam;
}
}
#endif /* NO_GETKEYBOARDSTATE */
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posted = SDL_PrivateKeyboard(SDL_PRESSED,
TranslateKey(wParam,HIWORD(lParam),&keysym,1));
}
return(0);
case WM_SYSKEYUP:
case WM_KEYUP: {
SDL_keysym keysym;
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#ifdef SDL_VIDEO_DRIVER_GAPI
if(this->hidden->gapiInfo)
{
// Drop GAPI artifacts
if (wParam == 0x84 || wParam == 0x5B)
return 0;
wParam = rotateKey(wParam, this->hidden->gapiInfo->coordinateTransform);
}
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switch (wParam) {
case VK_CONTROL:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RCONTROL;
else
wParam = VK_LCONTROL;
break;
case VK_SHIFT:
/* EXTENDED trick doesn't work here */
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{
Uint8 *state = SDL_GetKeyState(NULL);
if (state[SDLK_LSHIFT] == SDL_PRESSED && !(GetKeyState(VK_LSHIFT) & 0x8000)) {
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wParam = VK_LSHIFT;
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} else if (state[SDLK_RSHIFT] == SDL_PRESSED && !(GetKeyState(VK_RSHIFT) & 0x8000)) {
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wParam = VK_RSHIFT;
} else {
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/* Win9x */
int sc = HIWORD(lParam) & 0xFF;
if (sc == 0x2A)
wParam = VK_LSHIFT;
else
if (sc == 0x36)
wParam = VK_RSHIFT;
else
wParam = VK_LSHIFT;
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break;
case VK_MENU:
if ( lParam&EXTENDED_KEYMASK )
wParam = VK_RMENU;
else
wParam = VK_LMENU;
break;
}
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/* Windows only reports keyup for print screen */
if ( wParam == VK_SNAPSHOT && SDL_GetKeyState(NULL)[SDLK_PRINT] == SDL_RELEASED ) {
posted = SDL_PrivateKeyboard(SDL_PRESSED,
TranslateKey(wParam,HIWORD(lParam),&keysym,1));
}
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posted = SDL_PrivateKeyboard(SDL_RELEASED,
TranslateKey(wParam,HIWORD(lParam),&keysym,0));
}
return(0);
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#if defined(SC_SCREENSAVE) && defined(SC_MONITORPOWER)
case WM_SYSCOMMAND: {
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const DWORD val = (DWORD) (wParam & 0xFFF0);
if ((val == SC_SCREENSAVE) || (val == SC_MONITORPOWER)) {
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if (this->hidden->dibInfo && !allow_screensaver) {
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/* Note that this doesn't stop anything on Vista
if the screensaver has a password. */
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return(0);
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}
/* Fall through to default processing */
#endif /* SC_SCREENSAVE && SC_MONITORPOWER */
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default: {
/* Only post the event if we're watching for it */
if ( SDL_ProcessEvents[SDL_SYSWMEVENT] == SDL_ENABLE ) {
SDL_SysWMmsg wmmsg;
SDL_VERSION(&wmmsg.version);
wmmsg.hwnd = hwnd;
wmmsg.msg = msg;
wmmsg.wParam = wParam;
wmmsg.lParam = lParam;
posted = SDL_PrivateSysWMEvent(&wmmsg);
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/* DJM: If the user isn't watching for private
messages in her SDL event loop, then pass it
along to any win32 specific window proc.
*/
} else if (userWindowProc) {
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return CallWindowProc(userWindowProc, hwnd, msg, wParam, lParam);
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}
}
break;
}
return(DefWindowProc(hwnd, msg, wParam, lParam));
}
void DIB_PumpEvents(_THIS)
{
MSG msg;
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while ( PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) ) {
if ( GetMessage(&msg, NULL, 0, 0) > 0 ) {
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DispatchMessage(&msg);
}
}
}
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static HKL hLayoutUS = NULL;
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void DIB_InitOSKeymap(_THIS)
{
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GetKeyboardLayoutName(current_layout);
//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
hLayoutUS = LoadKeyboardLayout("00000409", KLF_NOTELLSHELL);
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if (!hLayoutUS) {
//printf("Failed to load US keyboard layout. Using current.\n");
hLayoutUS = GetKeyboardLayout(0);
}
LoadKeyboardLayout(current_layout, KLF_ACTIVATE);
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GetKeyboardLayoutName(current_layout);
//printf("Initial Keyboard Layout Name: '%s'\n", current_layout);
hLayoutUS = LoadKeyboardLayout(L"00000409", 0);
if (!hLayoutUS) {
//printf("Failed to load US keyboard layout. Using current.\n");
hLayoutUS = GetKeyboardLayout(0);
}
LoadKeyboardLayout(current_layout, 0);
#endif // _WIN32_WCE >=420
#endif
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/* Map the VK keysyms */
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for ( i=0; i<SDL_arraysize(VK_keymap); ++i )
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VK_keymap[i] = SDLK_UNKNOWN;
VK_keymap[VK_BACK] = SDLK_BACKSPACE;
VK_keymap[VK_TAB] = SDLK_TAB;
VK_keymap[VK_CLEAR] = SDLK_CLEAR;
VK_keymap[VK_RETURN] = SDLK_RETURN;
VK_keymap[VK_PAUSE] = SDLK_PAUSE;
VK_keymap[VK_ESCAPE] = SDLK_ESCAPE;
VK_keymap[VK_SPACE] = SDLK_SPACE;
VK_keymap[VK_APOSTROPHE] = SDLK_QUOTE;
VK_keymap[VK_COMMA] = SDLK_COMMA;
VK_keymap[VK_MINUS] = SDLK_MINUS;
VK_keymap[VK_PERIOD] = SDLK_PERIOD;
VK_keymap[VK_SLASH] = SDLK_SLASH;
VK_keymap[VK_0] = SDLK_0;
VK_keymap[VK_1] = SDLK_1;
VK_keymap[VK_2] = SDLK_2;
VK_keymap[VK_3] = SDLK_3;
VK_keymap[VK_4] = SDLK_4;
VK_keymap[VK_5] = SDLK_5;
VK_keymap[VK_6] = SDLK_6;
VK_keymap[VK_7] = SDLK_7;
VK_keymap[VK_8] = SDLK_8;
VK_keymap[VK_9] = SDLK_9;
VK_keymap[VK_SEMICOLON] = SDLK_SEMICOLON;
VK_keymap[VK_EQUALS] = SDLK_EQUALS;
VK_keymap[VK_LBRACKET] = SDLK_LEFTBRACKET;
VK_keymap[VK_BACKSLASH] = SDLK_BACKSLASH;
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VK_keymap[VK_OEM_102] = SDLK_LESS;
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VK_keymap[VK_RBRACKET] = SDLK_RIGHTBRACKET;
VK_keymap[VK_GRAVE] = SDLK_BACKQUOTE;
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VK_keymap[VK_BACKTICK] = SDLK_BACKQUOTE;
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VK_keymap[VK_A] = SDLK_a;
VK_keymap[VK_B] = SDLK_b;
VK_keymap[VK_C] = SDLK_c;
VK_keymap[VK_D] = SDLK_d;
VK_keymap[VK_E] = SDLK_e;
VK_keymap[VK_F] = SDLK_f;
VK_keymap[VK_G] = SDLK_g;
VK_keymap[VK_H] = SDLK_h;
VK_keymap[VK_I] = SDLK_i;
VK_keymap[VK_J] = SDLK_j;
VK_keymap[VK_K] = SDLK_k;
VK_keymap[VK_L] = SDLK_l;
VK_keymap[VK_M] = SDLK_m;
VK_keymap[VK_N] = SDLK_n;
VK_keymap[VK_O] = SDLK_o;
VK_keymap[VK_P] = SDLK_p;
VK_keymap[VK_Q] = SDLK_q;
VK_keymap[VK_R] = SDLK_r;
VK_keymap[VK_S] = SDLK_s;
VK_keymap[VK_T] = SDLK_t;
VK_keymap[VK_U] = SDLK_u;
VK_keymap[VK_V] = SDLK_v;
VK_keymap[VK_W] = SDLK_w;
VK_keymap[VK_X] = SDLK_x;
VK_keymap[VK_Y] = SDLK_y;
VK_keymap[VK_Z] = SDLK_z;
VK_keymap[VK_DELETE] = SDLK_DELETE;
VK_keymap[VK_NUMPAD0] = SDLK_KP0;
VK_keymap[VK_NUMPAD1] = SDLK_KP1;
VK_keymap[VK_NUMPAD2] = SDLK_KP2;
VK_keymap[VK_NUMPAD3] = SDLK_KP3;
VK_keymap[VK_NUMPAD4] = SDLK_KP4;
VK_keymap[VK_NUMPAD5] = SDLK_KP5;
VK_keymap[VK_NUMPAD6] = SDLK_KP6;
VK_keymap[VK_NUMPAD7] = SDLK_KP7;
VK_keymap[VK_NUMPAD8] = SDLK_KP8;
VK_keymap[VK_NUMPAD9] = SDLK_KP9;
VK_keymap[VK_DECIMAL] = SDLK_KP_PERIOD;
VK_keymap[VK_DIVIDE] = SDLK_KP_DIVIDE;
VK_keymap[VK_MULTIPLY] = SDLK_KP_MULTIPLY;
VK_keymap[VK_SUBTRACT] = SDLK_KP_MINUS;
VK_keymap[VK_ADD] = SDLK_KP_PLUS;
VK_keymap[VK_UP] = SDLK_UP;
VK_keymap[VK_DOWN] = SDLK_DOWN;
VK_keymap[VK_RIGHT] = SDLK_RIGHT;
VK_keymap[VK_LEFT] = SDLK_LEFT;
VK_keymap[VK_INSERT] = SDLK_INSERT;
VK_keymap[VK_HOME] = SDLK_HOME;
VK_keymap[VK_END] = SDLK_END;
VK_keymap[VK_PRIOR] = SDLK_PAGEUP;
VK_keymap[VK_NEXT] = SDLK_PAGEDOWN;
VK_keymap[VK_F1] = SDLK_F1;
VK_keymap[VK_F2] = SDLK_F2;
VK_keymap[VK_F3] = SDLK_F3;
VK_keymap[VK_F4] = SDLK_F4;
VK_keymap[VK_F5] = SDLK_F5;
VK_keymap[VK_F6] = SDLK_F6;
VK_keymap[VK_F7] = SDLK_F7;
VK_keymap[VK_F8] = SDLK_F8;
VK_keymap[VK_F9] = SDLK_F9;
VK_keymap[VK_F10] = SDLK_F10;
VK_keymap[VK_F11] = SDLK_F11;
VK_keymap[VK_F12] = SDLK_F12;
VK_keymap[VK_F13] = SDLK_F13;
VK_keymap[VK_F14] = SDLK_F14;
VK_keymap[VK_F15] = SDLK_F15;
VK_keymap[VK_NUMLOCK] = SDLK_NUMLOCK;
VK_keymap[VK_CAPITAL] = SDLK_CAPSLOCK;
VK_keymap[VK_SCROLL] = SDLK_SCROLLOCK;
VK_keymap[VK_RSHIFT] = SDLK_RSHIFT;
VK_keymap[VK_LSHIFT] = SDLK_LSHIFT;
VK_keymap[VK_RCONTROL] = SDLK_RCTRL;
VK_keymap[VK_LCONTROL] = SDLK_LCTRL;
VK_keymap[VK_RMENU] = SDLK_RALT;
VK_keymap[VK_LMENU] = SDLK_LALT;
VK_keymap[VK_RWIN] = SDLK_RSUPER;
VK_keymap[VK_LWIN] = SDLK_LSUPER;
VK_keymap[VK_HELP] = SDLK_HELP;
#ifdef VK_PRINT
VK_keymap[VK_PRINT] = SDLK_PRINT;
#endif
VK_keymap[VK_SNAPSHOT] = SDLK_PRINT;
VK_keymap[VK_CANCEL] = SDLK_BREAK;
VK_keymap[VK_APPS] = SDLK_MENU;
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Arrows_keymap[3] = 0x25;
Arrows_keymap[2] = 0x26;
Arrows_keymap[1] = 0x27;
Arrows_keymap[0] = 0x28;
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}
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#define EXTKEYPAD(keypad) ((scancode & 0x100)?(mvke):(keypad))
static int SDL_MapVirtualKey(int scancode, int vkey)
{
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int mvke = MapVirtualKeyEx(scancode & 0xFF, 1, hLayoutUS);
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switch(vkey) {
/* These are always correct */
case VK_DIVIDE:
case VK_MULTIPLY:
case VK_SUBTRACT:
case VK_ADD:
case VK_LWIN:
case VK_RWIN:
case VK_APPS:
/* These are already handled */
case VK_LCONTROL:
case VK_RCONTROL:
case VK_LSHIFT:
case VK_RSHIFT:
case VK_LMENU:
case VK_RMENU:
case VK_SNAPSHOT:
case VK_PAUSE:
return vkey;
}
switch(mvke) {
/* Distinguish between keypad and extended keys */
case VK_INSERT: return EXTKEYPAD(VK_NUMPAD0);
case VK_DELETE: return EXTKEYPAD(VK_DECIMAL);
case VK_END: return EXTKEYPAD(VK_NUMPAD1);
case VK_DOWN: return EXTKEYPAD(VK_NUMPAD2);
case VK_NEXT: return EXTKEYPAD(VK_NUMPAD3);
case VK_LEFT: return EXTKEYPAD(VK_NUMPAD4);
case VK_CLEAR: return EXTKEYPAD(VK_NUMPAD5);
case VK_RIGHT: return EXTKEYPAD(VK_NUMPAD6);
case VK_HOME: return EXTKEYPAD(VK_NUMPAD7);
case VK_UP: return EXTKEYPAD(VK_NUMPAD8);
case VK_PRIOR: return EXTKEYPAD(VK_NUMPAD9);
}
return mvke?mvke:vkey;
}
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static SDL_keysym *TranslateKey(WPARAM vkey, UINT scancode, SDL_keysym *keysym, int pressed)
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{
/* Set the keysym information */
keysym->scancode = (unsigned char) scancode;
keysym->mod = KMOD_NONE;
keysym->unicode = 0;
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if ((vkey == VK_RETURN) && (scancode & 0x100)) {
/* No VK_ code for the keypad enter key */
keysym->sym = SDLK_KP_ENTER;
}
else {
keysym->sym = VK_keymap[SDL_MapVirtualKey(scancode, vkey)];
}
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if ( pressed && SDL_TranslateUNICODE ) {
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#ifdef NO_GETKEYBOARDSTATE
/* Uh oh, better hope the vkey is close enough.. */
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if((keysym->sym == vkey) || (vkey > 0x7f))
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keysym->unicode = vkey;
#else
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BYTE keystate[256];
Uint16 wchars[2];
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GetKeyboardState(keystate);
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if (SDL_ToUnicode((UINT)vkey, scancode, keystate, wchars, sizeof(wchars)/sizeof(wchars[0]), 0) == 1)
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{
keysym->unicode = wchars[0];
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}
#endif /* NO_GETKEYBOARDSTATE */
}
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#if 0
{
HKL hLayoutCurrent = GetKeyboardLayout(0);
int sc = scancode & 0xFF;
printf("SYM:%d, VK:0x%02X, SC:0x%04X, US:(1:0x%02X, 3:0x%02X), "
"Current:(1:0x%02X, 3:0x%02X)\n",
keysym->sym, vkey, scancode,
MapVirtualKeyEx(sc, 1, hLayoutUS),
MapVirtualKeyEx(sc, 3, hLayoutUS),
MapVirtualKeyEx(sc, 1, hLayoutCurrent),
MapVirtualKeyEx(sc, 3, hLayoutCurrent)
);
}
#endif
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return(keysym);
}
int DIB_CreateWindow(_THIS)
{
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char *windowid = SDL_getenv("SDL_WINDOWID");
550
SDL_RegisterApp(NULL, 0, 0);
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SDL_windowid = (windowid != NULL);
if ( SDL_windowid ) {
554
#if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
555
/* wince 2.1 does not have strtol */
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wchar_t *windowid_t = SDL_malloc((SDL_strlen(windowid) + 1) * sizeof(wchar_t));
MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, windowid, -1, windowid_t, SDL_strlen(windowid) + 1);
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SDL_Window = (HWND)wcstol(windowid_t, NULL, 0);
559
SDL_free(windowid_t);
561
SDL_Window = (HWND)SDL_strtoull(windowid, NULL, 0);
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if ( SDL_Window == NULL ) {
SDL_SetError("Couldn't get user specified window");
return(-1);
}
/* DJM: we want all event's for the user specified
window to be handled by SDL.
*/
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userWindowProc = (WNDPROCTYPE)GetWindowLongPtr(SDL_Window, GWLP_WNDPROC);
SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)WinMessage);
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} else {
SDL_Window = CreateWindow(SDL_Appname, SDL_Appname,
(WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_MINIMIZEBOX),
576
CW_USEDEFAULT, CW_USEDEFAULT, 0, 0, NULL, NULL, SDL_Instance, NULL);
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579
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if ( SDL_Window == NULL ) {
SDL_SetError("Couldn't create window");
return(-1);
}
ShowWindow(SDL_Window, SW_HIDE);
}
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/* JC 14 Mar 2006
Flush the message loop or this can cause big problems later
Especially if the user decides to use dialog boxes or assert()!
*/
WIN_FlushMessageQueue();
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return(0);
}
void DIB_DestroyWindow(_THIS)
{
595
if ( SDL_windowid ) {
596
SetWindowLongPtr(SDL_Window, GWLP_WNDPROC, (LONG_PTR)userWindowProc);
598
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DestroyWindow(SDL_Window);
}
600
SDL_UnregisterApp();
601
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/* JC 14 Mar 2006
Flush the message loop or this can cause big problems later
Especially if the user decides to use dialog boxes or assert()!
*/
WIN_FlushMessageQueue();
607
}