| 1 | /* $Id: objhandle.cpp,v 1.20 2001-12-15 18:50:27 sandervl Exp $ */
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| 2 | /*
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| 3 | * Win32 Handle Management Code for OS/2
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| 4 | *
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| 5 | *
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| 6 | * Copyright 2000 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * TODO: The table should be dynamically increased when necessary
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| 10 | * This is just a quick and dirty implementation
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| 11 | *
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| 12 | * Project Odin Software License can be found in LICENSE.TXT
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| 13 | *
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| 14 | */
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| 15 |
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| 16 | #include <os2win.h>
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| 17 | #include <stdlib.h>
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| 18 | #include <string.h>
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| 19 | #include <vmutex.h>
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| 20 | #include <objhandle.h>
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| 21 | #include <dcdata.h>
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| 22 | #include <winuser32.h>
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| 23 | #include "oslibgpi.h"
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| 24 | #include "dibsect.h"
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| 25 | #include "region.h"
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| 26 | #include <unicode.h>
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| 27 | #include "font.h"
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| 28 | #include <stats.h>
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| 29 |
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| 30 | #define DBG_LOCALLOG DBG_objhandle
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| 31 | #include "dbglocal.h"
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| 32 |
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| 33 | //TODO: must use 16 bits gdi object handles
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| 34 | #define GDIOBJ_PREFIX 0xe7000000
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| 35 |
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| 36 | //******************************************************************************
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| 37 |
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| 38 | typedef struct {
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| 39 | ULONG dwUserData;
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| 40 | ObjectType type;
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| 41 | } GdiObject;
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| 42 |
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| 43 | static GdiObject objHandleTable[MAX_OBJECT_HANDLES] = {0};
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| 44 | static ULONG lowestFreeIndex = 1;
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| 45 | static VMutex objTableMutex;
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| 46 |
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| 47 | //******************************************************************************
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| 48 | //******************************************************************************
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| 49 | BOOL WIN32API ObjAllocateHandle(HANDLE *hObject, DWORD dwUserData, ObjectType type)
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| 50 | {
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| 51 | objTableMutex.enter(VMUTEX_WAIT_FOREVER);
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| 52 | if(lowestFreeIndex == -1) {
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| 53 | //oops, out of handles
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| 54 | objTableMutex.leave();
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| 55 | dprintf(("ERROR: GDI: ObjAllocateHandle OUT OF GDI OBJECT HANDLES!!"));
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| 56 | DebugInt3();
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| 57 | return FALSE;
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| 58 | }
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| 59 | if(objHandleTable[0].type == 0) {
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| 60 | //first handle can never be used
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| 61 | objHandleTable[0].type = GDIOBJ_INVALID;
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| 62 | objHandleTable[0].dwUserData = -1;
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| 63 | }
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| 64 | *hObject = lowestFreeIndex;
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| 65 | *hObject |= MAKE_HANDLE(type);
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| 66 | objHandleTable[lowestFreeIndex].dwUserData = dwUserData;
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| 67 | objHandleTable[lowestFreeIndex].type = type;
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| 68 |
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| 69 | lowestFreeIndex = -1;
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| 70 |
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| 71 | //find next free handle
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| 72 | for(int i=0;i<MAX_OBJECT_HANDLES;i++) {
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| 73 | if(objHandleTable[i].dwUserData == 0) {
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| 74 | lowestFreeIndex = i;
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| 75 | break;
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| 76 | }
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| 77 | }
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| 78 | objTableMutex.leave();
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| 79 | return TRUE;
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| 80 | }
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| 81 | //******************************************************************************
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| 82 | //******************************************************************************
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| 83 | void WIN32API ObjFreeHandle(HANDLE hObject)
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| 84 | {
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| 85 | hObject &= OBJHANDLE_MAGIC_MASK;
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| 86 | if(hObject < MAX_OBJECT_HANDLES) {
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| 87 | objTableMutex.enter(VMUTEX_WAIT_FOREVER);
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| 88 | objHandleTable[hObject].dwUserData = 0;
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| 89 | objHandleTable[hObject].type = GDIOBJ_NONE;
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| 90 | if(lowestFreeIndex == -1 || hObject < lowestFreeIndex)
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| 91 | lowestFreeIndex = hObject;
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| 92 |
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| 93 | objTableMutex.leave();
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| 94 | }
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| 95 | }
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| 96 | //******************************************************************************
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| 97 | //******************************************************************************
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| 98 | DWORD WIN32API ObjGetHandleData(HANDLE hObject, ObjectType type)
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| 99 | {
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| 100 | hObject &= OBJHANDLE_MAGIC_MASK;
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| 101 | if(hObject < MAX_OBJECT_HANDLES && type == objHandleTable[hObject].type) {
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| 102 | return objHandleTable[hObject].dwUserData;
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| 103 | }
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| 104 | return HANDLE_OBJ_ERROR;
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| 105 | }
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| 106 | //******************************************************************************
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| 107 | //******************************************************************************
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| 108 | ObjectType WIN32API ObjGetHandleType(HANDLE hObject)
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| 109 | {
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| 110 | DWORD objtype;
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| 111 |
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| 112 | switch(OBJHANDLE_MAGIC(hObject))
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| 113 | {
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| 114 | case GDIOBJ_REGION:
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| 115 | hObject &= OBJHANDLE_MAGIC_MASK;
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| 116 | if(hObject < MAX_OBJECT_HANDLES && objHandleTable[hObject].type == GDIOBJ_REGION) {
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| 117 | return GDIOBJ_REGION;
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| 118 | }
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| 119 | break;
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| 120 |
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| 121 | case USEROBJ_MENU:
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| 122 | hObject &= OBJHANDLE_MAGIC_MASK;
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| 123 | if(hObject < MAX_OBJECT_HANDLES && objHandleTable[hObject].type == USEROBJ_MENU) {
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| 124 | return USEROBJ_MENU;
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| 125 | }
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| 126 | break;
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| 127 |
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| 128 | case GDIOBJ_NONE:
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| 129 | //could be a cutoff menu handle, check this
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| 130 | //TODO: dangerous assumption! (need to rewrite object handle management)
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| 131 | hObject &= OBJHANDLE_MAGIC_MASK;
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| 132 | if(hObject < MAX_OBJECT_HANDLES && objHandleTable[hObject].dwUserData != 0 && objHandleTable[hObject].type == USEROBJ_MENU) {
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| 133 | return USEROBJ_MENU;
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| 134 | }
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| 135 | break;
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| 136 |
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| 137 | case GDIOBJ_BITMAP:
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| 138 | case GDIOBJ_BRUSH:
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| 139 | case GDIOBJ_PALETTE:
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| 140 | case GDIOBJ_FONT:
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| 141 | case USEROBJ_ACCEL:
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| 142 | default:
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| 143 | break;
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| 144 | }
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| 145 | return GDIOBJ_NONE;
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| 146 | }
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| 147 | //******************************************************************************
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| 148 | //******************************************************************************
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| 149 | int WIN32API GetObjectA( HGDIOBJ hObject, int size, void *lpBuffer)
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| 150 | {
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| 151 | int rc;
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| 152 |
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| 153 | dprintf(("GDI32: GetObject %X %X %X\n", hObject, size, lpBuffer));
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| 154 | //TODO: must use 16 bits gdi object handles
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| 155 | if(HIWORD(hObject) == 0) {
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| 156 | hObject |= GDIOBJ_PREFIX;
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| 157 | }
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| 158 | if(lpBuffer == NULL)
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| 159 | { //return required size if buffer pointer == NULL
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| 160 | int objtype = GetObjectType(hObject);
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| 161 | switch(objtype)
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| 162 | {
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| 163 | case OBJ_PEN:
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| 164 | return sizeof(LOGPEN);
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| 165 |
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| 166 | case OBJ_EXTPEN:
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| 167 | return sizeof(EXTLOGPEN);
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| 168 |
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| 169 | case OBJ_BRUSH:
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| 170 | return sizeof(LOGBRUSH);
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| 171 |
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| 172 | case OBJ_PAL:
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| 173 | return sizeof(USHORT);
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| 174 |
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| 175 | case OBJ_FONT:
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| 176 | return sizeof(LOGFONTA);
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| 177 |
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| 178 | case OBJ_BITMAP:
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| 179 | return sizeof(BITMAP); //also default for dib sections??? (TODO: NEED TO CHECK THIS)
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| 180 |
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| 181 | case OBJ_DC:
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| 182 | case OBJ_METADC:
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| 183 | case OBJ_REGION:
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| 184 | case OBJ_METAFILE:
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| 185 | case OBJ_MEMDC:
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| 186 | case OBJ_ENHMETADC:
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| 187 | case OBJ_ENHMETAFILE:
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| 188 | dprintf(("warning: GetObjectA not defined for object type %d", objtype));
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| 189 | return 0;
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| 190 | }
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| 191 | }
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| 192 | if(DIBSection::getSection() != NULL)
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| 193 | {
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| 194 | DIBSection *dsect = DIBSection::findObj(hObject);
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| 195 | if(dsect)
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| 196 | {
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| 197 | rc = dsect->GetDIBSection(size, lpBuffer);
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| 198 | if(rc == 0) {
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| 199 | SetLastError(ERROR_INVALID_PARAMETER);
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| 200 | return 0;
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| 201 | }
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| 202 | SetLastError(ERROR_SUCCESS);
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| 203 | return rc;
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| 204 | }
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| 205 | }
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| 206 |
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| 207 | return O32_GetObject(hObject, size, lpBuffer);
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| 208 | }
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| 209 | //******************************************************************************
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| 210 | //******************************************************************************
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| 211 | int WIN32API GetObjectW( HGDIOBJ hObject, int size, void *lpBuffer)
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| 212 | {
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| 213 | int ret, objtype;
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| 214 |
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| 215 | dprintf(("GDI32: GetObjectW %X, %d %X", hObject, size, lpBuffer));
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| 216 |
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| 217 | //TODO: must use 16 bits gdi object handles
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| 218 | if(HIWORD(hObject) == 0) {
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| 219 | hObject |= GDIOBJ_PREFIX;
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| 220 | }
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| 221 | objtype = GetObjectType(hObject);
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| 222 |
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| 223 | switch(objtype)
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| 224 | {
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| 225 | case OBJ_FONT:
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| 226 | {
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| 227 | LOGFONTA logfonta;
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| 228 |
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| 229 | if(lpBuffer == NULL) {
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| 230 | return sizeof(LOGFONTW); //return required size if buffer pointer == NULL
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| 231 | }
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| 232 | ret = GetObjectA(hObject, sizeof(logfonta), (void *)&logfonta);
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| 233 | if(ret == sizeof(logfonta))
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| 234 | {
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| 235 | LOGFONTW *logfontw = (LOGFONTW *)lpBuffer;
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| 236 |
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| 237 | if(size < sizeof(LOGFONTW)) {
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| 238 | dprintf(("GDI32: GetObjectW : buffer not big enough for LOGFONTW struct!!")); //is the correct? or copy only part?
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| 239 | return 0;
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| 240 | }
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| 241 | memcpy(logfontw, &logfonta, sizeof(LOGFONTA));
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| 242 | memset(logfontw->lfFaceName, 0, LF_FACESIZE);
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| 243 | AsciiToUnicodeN(logfonta.lfFaceName, logfontw->lfFaceName, LF_FACESIZE-1);
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| 244 |
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| 245 | return sizeof(LOGFONTW);
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| 246 | }
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| 247 | return 0;
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| 248 | }
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| 249 | default:
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| 250 | return GetObjectA(hObject, size, lpBuffer);
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| 251 | }
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| 252 | }
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| 253 | //******************************************************************************
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| 254 | //******************************************************************************
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| 255 | HGDIOBJ WIN32API SelectObject(HDC hdc, HGDIOBJ hObj)
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| 256 | {
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| 257 | HGDIOBJ rc;
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| 258 | DWORD handleType;
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| 259 |
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| 260 | //TODO: must use 16 bits gdi object handles
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| 261 | if(HIWORD(hObj) == 0) {
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| 262 | hObj |= GDIOBJ_PREFIX;
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| 263 | }
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| 264 |
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| 265 | handleType = GetObjectType(hObj);
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| 266 | dprintf2(("GDI32: SelectObject %x %x type %x", hdc, hObj, handleType));
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| 267 | if(handleType == GDIOBJ_REGION) {
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| 268 | //Return complexity here; not previously selected clip region
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| 269 | return (HGDIOBJ)SelectClipRgn(hdc, hObj);
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| 270 | }
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| 271 |
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| 272 | if(handleType == OBJ_BITMAP && DIBSection::getSection() != NULL)
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| 273 | {
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| 274 | DIBSection *dsect;
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| 275 |
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| 276 | dsect = DIBSection::findHDC(hdc);
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| 277 | if(dsect)
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| 278 | {
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| 279 | //remove previously selected dibsection
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| 280 | dsect->UnSelectDIBObject();
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| 281 | }
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| 282 | dsect = DIBSection::findObj(hObj);
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| 283 | if(dsect)
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| 284 | {
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| 285 | dsect->SelectDIBObject(hdc);
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| 286 | }
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| 287 | }
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| 288 | rc = O32_SelectObject(hdc, hObj);
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| 289 | if(rc != 0 && GetObjectType(rc) == OBJ_BITMAP && DIBSection::getSection != NULL)
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| 290 | {
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| 291 | DIBSection *dsect = DIBSection::findObj(rc);
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| 292 | if(dsect)
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| 293 | {
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| 294 | dsect->UnSelectDIBObject();
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| 295 | }
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| 296 | }
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| 297 | #ifdef USING_OPEN32
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| 298 | if(handleType == OBJ_BITMAP)
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| 299 | {
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| 300 | //SvL: Open32 messes up the height of the hdc (for windows)
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| 301 | pDCData pHps = (pDCData)OSLibGpiQueryDCData((HPS)hdc);
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| 302 | if(pHps && pHps->hwnd) {
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| 303 | dprintf2(("change back origin"));
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| 304 | selectClientArea(pHps);
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| 305 | setPageXForm(pHps);
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| 306 | }
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| 307 | }
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| 308 | #endif
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| 309 | dprintf2(("GDI32: SelectObject %x %x returned %x", hdc, hObj, rc));
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| 310 |
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| 311 | return(rc);
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| 312 | }
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| 313 | //******************************************************************************
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| 314 | //Called from user32 ReleaseDC (for non CS_OWNDC hdcs)
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| 315 | //******************************************************************************
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| 316 | VOID WIN32API UnselectGDIObjects(HDC hdc)
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| 317 | {
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| 318 | DIBSection *dsect;
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| 319 |
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| 320 | dsect = DIBSection::findHDC(hdc);
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| 321 | if(dsect)
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| 322 | {
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| 323 | //remove previously selected dibsection
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| 324 | dsect->UnSelectDIBObject();
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| 325 | }
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| 326 | }
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| 327 | //******************************************************************************
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| 328 | //******************************************************************************
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| 329 | DWORD WIN32API GetObjectType( HGDIOBJ hObj)
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| 330 | {
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| 331 | DWORD objtype;
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| 332 |
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| 333 | //TODO: must use 16 bits gdi object handles
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| 334 | if(HIWORD(hObj) == 0) {
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| 335 | hObj |= GDIOBJ_PREFIX;
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| 336 | }
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| 337 | if(ObjGetHandleType(hObj) == GDIOBJ_REGION) {
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| 338 | dprintf2(("GDI32: GetObjectType %x REGION", hObj));
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| 339 | SetLastError(ERROR_SUCCESS);
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| 340 | return OBJ_REGION;
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| 341 | }
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| 342 | objtype = O32_GetObjectType(hObj);
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| 343 | dprintf2(("GDI32: GetObjectType %x objtype %d", hObj, objtype));
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| 344 | return objtype;
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| 345 | }
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| 346 | //******************************************************************************
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| 347 | //TODO: System objects can't be deleted (TODO: any others?? (fonts?))!!!!)
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| 348 | //******************************************************************************
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| 349 | BOOL WIN32API DeleteObject(HANDLE hObj)
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| 350 | {
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| 351 | DWORD objtype;
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| 352 |
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| 353 | dprintf(("GDI32: DeleteObject %x", hObj));
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| 354 |
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| 355 | //TODO: must use 16 bits gdi object handles
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| 356 | if(HIWORD(hObj) == 0)
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| 357 | {
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| 358 | hObj |= GDIOBJ_PREFIX;
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| 359 | }
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| 360 |
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| 361 | //System objects can't be deleted (TODO: any others?? (fonts?))!!!!)
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| 362 | objtype = GetObjectType(hObj);
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| 363 | switch (objtype)
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| 364 | {
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| 365 | case OBJ_PEN:
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| 366 | if(IsSystemPen(hObj))
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| 367 | {
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| 368 | SetLastError(ERROR_SUCCESS);
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| 369 | return TRUE;
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| 370 | }
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| 371 | else
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| 372 | break;
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| 373 |
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| 374 | case OBJ_BRUSH:
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| 375 | if(IsSystemBrush(hObj))
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| 376 | {
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| 377 | SetLastError(ERROR_SUCCESS);
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| 378 | return TRUE;
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| 379 | }
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| 380 | else
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| 381 | break;
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| 382 |
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| 383 | case OBJ_FONT:
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| 384 | if(IsSystemFont(hObj))
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| 385 | {
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| 386 | SetLastError(ERROR_SUCCESS);
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| 387 | return TRUE;
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| 388 | }
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| 389 | else
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| 390 | break;
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| 391 |
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| 392 | // add more system-type objects as required ...
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| 393 | }
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| 394 |
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| 395 | STATS_DeleteObject(hObj, objtype);
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| 396 |
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| 397 | if(ObjGetHandleType(hObj) == GDIOBJ_REGION)
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| 398 | {
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| 399 | OSLibDeleteRegion(ObjGetHandleData(hObj, GDIOBJ_REGION));
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| 400 | ObjFreeHandle(hObj);
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| 401 | SetLastError(ERROR_SUCCESS);
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| 402 | return TRUE;
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| 403 | }
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| 404 |
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| 405 | DIBSection::deleteSection((DWORD)hObj);
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| 406 | return O32_DeleteObject(hObj);
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| 407 | }
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| 408 | //******************************************************************************
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| 409 | //******************************************************************************
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| 410 | int WIN32API EnumObjects( HDC hdc, int objType, GOBJENUMPROC objFunc, LPARAM lParam)
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| 411 | {
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| 412 | //calling convention differences
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| 413 | dprintf(("!ERROR!: GDI32: EnumObjects STUB"));
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| 414 | // return O32_EnumObjects(arg1, arg2, arg3, arg4);
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| 415 | return 0;
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| 416 | }
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| 417 | //******************************************************************************
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| 418 | //******************************************************************************
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| 419 | HANDLE WIN32API GetCurrentObject( HDC hdc, UINT arg2)
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| 420 | {
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| 421 | dprintf(("GDI32: GetCurrentObject %x %x", hdc, arg2));
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| 422 | return (HANDLE)O32_GetCurrentObject(hdc, arg2);
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| 423 | }
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| 424 | //******************************************************************************
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| 425 | //******************************************************************************
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| 426 | BOOL WIN32API SetObjectOwner( HGDIOBJ arg1, int arg2 )
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| 427 | {
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| 428 | // Here is a guess for a undocumented entry
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| 429 | dprintf(("WARNING: GDI32: SetObjectOwner - stub (TRUE)\n"));
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| 430 | return TRUE;
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| 431 | }
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| 432 | //******************************************************************************
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| 433 | //******************************************************************************
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| 434 | BOOL WIN32API UnrealizeObject( HGDIOBJ hObject)
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| 435 | {
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| 436 | dprintf(("GDI32: UnrealizeObject %x", hObject));
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| 437 | return O32_UnrealizeObject(hObject);
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| 438 | }
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| 439 | //******************************************************************************
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| 440 | //******************************************************************************
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