2 * Driver Environment functions
4 * Note: This has NOTHING to do with the task/process environment!
6 * Copyright 1997 Marcus Meissner
7 * Copyright 1998 Andreas Mohr
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
33 #include "wine/wingdi16.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
43 static ENVTABLE EnvTable[20];
45 static ENVTABLE *SearchEnvTable(ATOM atom)
49 for (i = 19; i >= 0; i--) {
50 if (EnvTable[i].atom == atom)
56 static ATOM GDI_GetNullPortAtom(void)
58 static ATOM NullPortAtom = 0;
63 GetProfileStringA( "windows", "nullport", "none",
64 NullPort, sizeof(NullPort) );
65 NullPortAtom = AddAtomA( NullPort );
70 static ATOM PortNameToAtom(LPCSTR lpPortName, BOOL16 add)
74 lstrcpynA( buffer, lpPortName, sizeof(buffer) );
76 if (buffer[0] && buffer[strlen(buffer)-1] == ':') buffer[strlen(buffer)-1] = 0;
79 return AddAtomA(buffer);
81 return FindAtomA(buffer);
85 /***********************************************************************
86 * GetEnvironment (GDI.133)
88 INT16 WINAPI GetEnvironment16(LPCSTR lpPortName, LPDEVMODEA lpdev, UINT16 nMaxSize)
95 TRACE("('%s', %p, %d)\n", lpPortName, lpdev, nMaxSize);
97 if (!(atom = PortNameToAtom(lpPortName, FALSE)))
99 if (atom == GDI_GetNullPortAtom())
100 if (!(atom = FindAtomA((LPCSTR)lpdev)))
102 if (!(env = SearchEnvTable(atom)))
104 size = GlobalSize16(env->handle);
105 if (!lpdev) return 0;
106 if (size < nMaxSize) nMaxSize = size;
107 if (!(p = GlobalLock16(env->handle))) return 0;
108 memcpy(lpdev, p, nMaxSize);
109 GlobalUnlock16(env->handle);
114 /***********************************************************************
115 * SetEnvironment (GDI.132)
117 INT16 WINAPI SetEnvironment16(LPCSTR lpPortName, LPDEVMODEA lpdev, UINT16 nCount)
120 BOOL16 nullport = FALSE;
126 TRACE("('%s', %p, %d)\n", lpPortName, lpdev, nCount);
128 if ((atom = PortNameToAtom(lpPortName, FALSE))) {
129 if (atom == GDI_GetNullPortAtom()) {
131 atom = FindAtomA((LPCSTR)lpdev);
133 env = SearchEnvTable(atom);
134 GlobalFree16(env->handle);
137 if (nCount) { /* store DEVMODE struct */
139 port_name = (LPSTR)lpdev;
141 port_name = lpPortName;
143 if ((atom = PortNameToAtom(port_name, TRUE))
144 && (env = SearchEnvTable(0))
145 && (handle = GlobalAlloc16(GMEM_SHARE|GMEM_MOVEABLE, nCount))) {
146 if (!(device_mode = GlobalLock16(handle))) {
147 GlobalFree16(handle);
151 env->handle = handle;
152 memcpy(device_mode, lpdev, nCount);
153 GlobalUnlock16(handle);