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
30 #include "wine/debug.h"
32 WINE_DEFAULT_DEBUG_CHANNEL(gdi);
39 static ENVTABLE EnvTable[20];
41 static ENVTABLE *SearchEnvTable(ATOM atom)
45 for (i = 19; i >= 0; i--) {
46 if (EnvTable[i].atom == atom)
52 static ATOM GDI_GetNullPortAtom(void)
54 static ATOM NullPortAtom = 0;
59 GetProfileStringA( "windows", "nullport", "none",
60 NullPort, sizeof(NullPort) );
61 NullPortAtom = AddAtomA( NullPort );
66 static ATOM PortNameToAtom(LPCSTR lpPortName, BOOL16 add)
70 lstrcpynA( buffer, lpPortName, sizeof(buffer) );
72 if (buffer[0] && buffer[strlen(buffer)-1] == ':') buffer[strlen(buffer)-1] = 0;
75 return AddAtomA(buffer);
77 return FindAtomA(buffer);
81 /***********************************************************************
82 * GetEnvironment (GDI.133)
84 INT16 WINAPI GetEnvironment16(LPCSTR lpPortName, LPDEVMODEA lpdev, UINT16 nMaxSize)
91 TRACE("('%s', %p, %d)\n", lpPortName, lpdev, nMaxSize);
93 if (!(atom = PortNameToAtom(lpPortName, FALSE)))
95 if (atom == GDI_GetNullPortAtom())
96 if (!(atom = FindAtomA((LPCSTR)lpdev)))
98 if (!(env = SearchEnvTable(atom)))
100 size = GlobalSize16(env->handle);
101 if (!lpdev) return 0;
102 if (size < nMaxSize) nMaxSize = size;
103 if (!(p = GlobalLock16(env->handle))) return 0;
104 memcpy(lpdev, p, nMaxSize);
105 GlobalUnlock16(env->handle);
110 /***********************************************************************
111 * SetEnvironment (GDI.132)
113 INT16 WINAPI SetEnvironment16(LPCSTR lpPortName, LPDEVMODEA lpdev, UINT16 nCount)
116 BOOL16 nullport = FALSE;
122 TRACE("('%s', %p, %d)\n", lpPortName, lpdev, nCount);
124 if ((atom = PortNameToAtom(lpPortName, FALSE))) {
125 if (atom == GDI_GetNullPortAtom()) {
127 atom = FindAtomA((LPCSTR)lpdev);
129 env = SearchEnvTable(atom);
130 GlobalFree16(env->handle);
133 if (nCount) { /* store DEVMODE struct */
135 port_name = (LPSTR)lpdev;
137 port_name = lpPortName;
139 if ((atom = PortNameToAtom(port_name, TRUE))
140 && (env = SearchEnvTable(0))
141 && (handle = GlobalAlloc16(GMEM_SHARE|GMEM_MOVEABLE, nCount))) {
142 if (!(device_mode = GlobalLock16(handle))) {
143 GlobalFree16(handle);
147 env->handle = handle;
148 memcpy(device_mode, lpdev, nCount);
149 GlobalUnlock16(handle);