Sweden-Number/dlls/wintab32/wintab32.c

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/*
* WinTab32 library
*
* Copyright 2003 CodeWeavers, Aric Stewart
*
* 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
*/
#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "winreg.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#define NOFIX32
#include "wintab.h"
#include "wintab_internal.h"
#include "wine/unicode.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wintab32);
HWND hwndDefault = NULL;
static const WCHAR
WC_TABLETCLASSNAME[] = {'W','i','n','e','T','a','b','l','e','t','C','l','a','s','s',0};
static CRITICAL_SECTION_DEBUG csTablet_debug =
{
0, 0, &csTablet,
{ &csTablet_debug.ProcessLocksList, &csTablet_debug.ProcessLocksList },
0, 0, { (DWORD_PTR)(__FILE__ ": csTablet") }
};
CRITICAL_SECTION csTablet = { &csTablet_debug, -1, 0, 0, 0, 0 };
int (CDECL *pLoadTabletInfo)(HWND hwnddefault) = NULL;
int (CDECL *pGetCurrentPacket)(LPWTPACKET packet) = NULL;
int (CDECL *pAttachEventQueueToTablet)(HWND hOwner) = NULL;
UINT (CDECL *pWTInfoW)(UINT wCategory, UINT nIndex, LPVOID lpOutput) = NULL;
static LRESULT WINAPI TABLET_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
LPARAM lParam);
static VOID TABLET_Register(void)
{
WNDCLASSW wndClass;
ZeroMemory(&wndClass, sizeof(WNDCLASSW));
wndClass.style = CS_GLOBALCLASS;
wndClass.lpfnWndProc = TABLET_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = 0;
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wndClass.hCursor = NULL;
wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW +1);
wndClass.lpszClassName = WC_TABLETCLASSNAME;
RegisterClassW(&wndClass);
}
static VOID TABLET_Unregister(void)
{
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UnregisterClassW(WC_TABLETCLASSNAME, NULL);
}
static HMODULE load_graphics_driver(void)
{
static const WCHAR display_device_guid_propW[] = {
'_','_','w','i','n','e','_','d','i','s','p','l','a','y','_',
'd','e','v','i','c','e','_','g','u','i','d',0 };
static const WCHAR key_pathW[] = {
'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'V','i','d','e','o','\\','{',0};
static const WCHAR displayW[] = {'}','\\','0','0','0','0',0};
static const WCHAR driverW[] = {'G','r','a','p','h','i','c','s','D','r','i','v','e','r',0};
HMODULE ret = 0;
HKEY hkey;
DWORD size;
WCHAR path[MAX_PATH];
WCHAR key[ARRAY_SIZE(key_pathW) + ARRAY_SIZE(displayW) + 40];
UINT guid_atom = HandleToULong( GetPropW( GetDesktopWindow(), display_device_guid_propW ));
if (!guid_atom) return 0;
memcpy( key, key_pathW, sizeof(key_pathW) );
if (!GlobalGetAtomNameW( guid_atom, key + strlenW(key), 40 )) return 0;
strcatW( key, displayW );
if (RegOpenKeyW( HKEY_LOCAL_MACHINE, key, &hkey )) return 0;
size = sizeof(path);
if (!RegQueryValueExW( hkey, driverW, NULL, NULL, (BYTE *)path, &size )) ret = LoadLibraryW( path );
RegCloseKey( hkey );
TRACE( "%s %p\n", debugstr_w(path), ret );
return ret;
}
BOOL WINAPI DllMain(HINSTANCE hInstDLL, DWORD fdwReason, LPVOID lpReserved)
{
static const WCHAR name[] = {'T','a','b','l','e','t',0};
TRACE("%p, %x, %p\n",hInstDLL,fdwReason,lpReserved);
switch (fdwReason)
{
case DLL_PROCESS_ATTACH:
TRACE("Initialization\n");
DisableThreadLibraryCalls(hInstDLL);
TABLET_Register();
hwndDefault = CreateWindowW(WC_TABLETCLASSNAME, name,
WS_POPUPWINDOW,0,0,0,0,0,0,hInstDLL,0);
if (hwndDefault)
{
HMODULE module = load_graphics_driver();
pLoadTabletInfo = (void *)GetProcAddress(module, "LoadTabletInfo");
pAttachEventQueueToTablet = (void *)GetProcAddress(module, "AttachEventQueueToTablet");
pGetCurrentPacket = (void *)GetProcAddress(module, "GetCurrentPacket");
pWTInfoW = (void *)GetProcAddress(module, "WTInfoW");
}
else
return FALSE;
break;
case DLL_PROCESS_DETACH:
if (lpReserved) break;
TRACE("Detaching\n");
if (hwndDefault) DestroyWindow(hwndDefault);
TABLET_Unregister();
DeleteCriticalSection(&csTablet);
break;
}
return TRUE;
}
/*
* The window proc for the default TABLET window
*/
static LRESULT WINAPI TABLET_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
LPARAM lParam)
{
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TRACE("Incoming Message 0x%x (0x%08x, 0x%08x)\n", uMsg, (UINT)wParam,
(UINT)lParam);
switch(uMsg)
{
case WM_NCCREATE:
return TRUE;
case WT_PACKET:
{
WTPACKET packet;
LPOPENCONTEXT handler;
if (pGetCurrentPacket)
{
pGetCurrentPacket(&packet);
handler = AddPacketToContextQueue(&packet,(HWND)lParam);
if (handler && handler->context.lcOptions & CXO_MESSAGES)
TABLET_PostTabletMessage(handler, _WT_PACKET(handler->context.lcMsgBase),
(WPARAM)packet.pkSerialNumber,
(LPARAM)handler->handle, FALSE);
}
break;
}
case WT_PROXIMITY:
{
WTPACKET packet;
LPOPENCONTEXT handler;
if (pGetCurrentPacket)
{
pGetCurrentPacket(&packet);
handler = AddPacketToContextQueue(&packet,(HWND)wParam);
if (handler)
TABLET_PostTabletMessage(handler, WT_PROXIMITY,
(WPARAM)handler->handle, lParam, TRUE);
}
break;
}
}
return 0;
}