457 lines
8.4 KiB
C
457 lines
8.4 KiB
C
/*++
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Copyright (c) 1996 Microsoft Corporation
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Module Name:
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main.c
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Abstract:
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Main source file of migutil.dll
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Author:
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Jim Schmidt (jimschm) 01-Aug-1996
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Revision History:
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marcw 2-Sep-1999 Moved over from Win9xUpg project.
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jimschm 23-Sep-1998 Start thread
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marcw 23-Sep-1998 Locale fix
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jimschm 03-Nov-1997 Added TextAlloc routines
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marcw 22-Jul-1997 Added IS<platform> functions.
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--*/
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#include "pch.h"
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#include "utilsp.h"
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#include "locale.h"
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//#define DEBUG_ALL_FILES
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HINSTANCE g_hInst;
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HANDLE g_hHeap;
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OSVERSIONINFOA g_OsInfo;
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OUR_CRITICAL_SECTION g_MemDbCs;
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#define TEXT_GROWTH_SIZE 65536
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//
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// OS-dependent flags for MultiByteToWideChar
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//
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DWORD g_MigutilWCToMBFlags = 0;
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//
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// g_ShortTermAllocTable is the default table used for resource string
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// management. New strings are allocated from the table.
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//
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// Allocation tables are very simple ways to store strings loaded in from
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// the exe image. The loaded string is copied into the table and kept
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// around until it is explicitly freed. Multiple attempts at getting the
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// same resource string return the same string, inc'ing a use counter.
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//
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// g_OutOfMemoryTable is the table used to hold out-of-memory text. It
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// is loaded up at init time and is kept in memory for the whole time
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// migutil is in use, so out-of-memory messages can always be displayed.
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//
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PGROWBUFFER g_ShortTermAllocTable;
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PGROWBUFFER g_OutOfMemoryTable;
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//
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// We make sure the message APIs (GetStringResource, ParseMessageID, etc)
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// are thread-safe
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//
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OUR_CRITICAL_SECTION g_MessageCs;
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//
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// The PoolMem routines must also be thread-safe
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//
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OUR_CRITICAL_SECTION g_PmCs;
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//
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// MemAlloc critical section
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//
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OUR_CRITICAL_SECTION g_MemAllocCs;
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//
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// The following pools are used for text management. g_RegistryApiPool is
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// for reg.c, g_PathsPool is for the JoinPaths/DuplicatePath/etc routines,
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// and g_TextPool is for AllocText, DupText, etc.
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//
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PMHANDLE g_RegistryApiPool;
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PMHANDLE g_PathsPool;
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PMHANDLE g_TextPool;
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VOID
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UtInitialize (
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IN HANDLE Heap OPTIONAL
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)
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{
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//
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// Set globals
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//
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if (Heap) {
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g_hHeap = Heap;
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} else {
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g_hHeap = GetProcessHeap();
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}
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g_hInst = GetModuleHandle (NULL);
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//
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// Load in OSVERSION info.
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//
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g_OsInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFOA);
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GetVersionExA (&g_OsInfo);
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//
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// Initialize log
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//
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Init_Log (NULL);
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//
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// Create critical sections
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//
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InitializeOurCriticalSection (&g_MemAllocCs);
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InitializeOurCriticalSection (&g_MemDbCs);
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InitializeOurCriticalSection (&g_PmCs);
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InitializeOurCriticalSection (&g_MessageCs);
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//
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// Now that MemAlloc will work, initialize allocation tracking
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//
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InitAllocationTracking();
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//
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// Create the short-term alloc table for string resource utils
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//
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g_ShortTermAllocTable = CreateAllocTable();
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//
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// MultiByteToWideChar has desirable flags that only function on NT
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//
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g_MigutilWCToMBFlags = (ISNT()) ? WC_NO_BEST_FIT_CHARS : 0;
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#ifdef _lint
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g_MigutilWCToMBFlags = g_MigutilWCToMBFlags;
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#endif
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//
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// Create pools used by utils.lib code
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//
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g_RegistryApiPool = PmCreateNamedPool ("Registry API");
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g_PathsPool = PmCreateNamedPool ("Paths");
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g_TextPool = PmCreateNamedPool ("Text");
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PmSetMinimumGrowthSize (g_TextPool, TEXT_GROWTH_SIZE);
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ObsInitialize ();
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ElInitialize ();
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//
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// The "out of memory" message
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//
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g_OutOfMemoryTable = CreateAllocTable();
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g_OutOfMemoryRetry = GetStringResourceExA (
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g_OutOfMemoryTable,
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10001 /* MSG_OUT_OF_MEMORY_RETRY */
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);
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g_OutOfMemoryString = GetStringResourceExA (
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g_OutOfMemoryTable,
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10002 /* MSG_OUT_OF_MEMORY */
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);
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if (!g_OutOfMemoryString || !g_OutOfMemoryRetry) {
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DEBUGMSG ((
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DBG_WARNING,
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"Cannot load out of memory messages; resources 10001 and 10002 do not exist"
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));
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}
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//
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// set the locale to the system locale. Not doing this can cause isspace
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// to AV in certain MBSCHR circumstances.
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//
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setlocale(LC_ALL,"");
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}
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VOID
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UtTerminate (
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VOID
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)
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{
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//
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// Free utility pools
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//
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ElTerminate ();
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ObsTerminate ();
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if (g_RegistryApiPool) {
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PmDestroyPool (g_RegistryApiPool);
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}
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if (g_PathsPool) {
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PmDestroyPool (g_PathsPool);
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}
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if (g_TextPool) {
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PmDestroyPool (g_TextPool);
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}
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if (g_ShortTermAllocTable) {
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DestroyAllocTable (g_ShortTermAllocTable);
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}
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if (g_OutOfMemoryTable) {
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DestroyAllocTable (g_OutOfMemoryTable);
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}
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FreeAllocationTracking();
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//
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// Clean up handles used by critical sections
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//
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DeleteOurCriticalSection (&g_MemAllocCs);
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DeleteOurCriticalSection (&g_MemDbCs);
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DeleteOurCriticalSection (&g_PmCs);
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DeleteOurCriticalSection (&g_MessageCs);
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//
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// MUST BE VERY LAST CODE TO RUN
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//
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DumpHeapStats();
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Exit_Log ();
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}
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#define WIDTH(rect) (rect.right - rect.left)
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#define HEIGHT(rect) (rect.bottom - rect.top)
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void
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CenterWindow (
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IN HWND hwnd,
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IN HWND Parent
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)
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{
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RECT WndRect, ParentRect;
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int x, y;
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if (!Parent) {
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ParentRect.left = 0;
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ParentRect.top = 0;
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ParentRect.right = GetSystemMetrics (SM_CXFULLSCREEN);
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ParentRect.bottom = GetSystemMetrics (SM_CYFULLSCREEN);
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} else {
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GetWindowRect (Parent, &ParentRect);
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}
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MYASSERT (IsWindow (hwnd));
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GetWindowRect (hwnd, &WndRect);
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x = ParentRect.left + (WIDTH(ParentRect) - WIDTH(WndRect)) / 2;
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y = ParentRect.top + (HEIGHT(ParentRect) - HEIGHT(WndRect)) / 2;
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SetWindowPos (hwnd, NULL, x, y, 0, 0, SWP_NOZORDER|SWP_NOSIZE);
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}
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static INT g_MigUtilWaitCounter = 0;
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static HCURSOR g_MigUtilWaitCursor = NULL;
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VOID
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TurnOnWaitCursor (
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VOID
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)
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/*++
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Routine Description:
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TurnOnWaitCursor sets the cursor to IDC_WAIT. It maintains a use
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counter, so code requring the wait cursor can be nested.
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Arguments:
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none
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Return Value:
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none
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--*/
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{
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if (g_MigUtilWaitCounter == 0) {
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g_MigUtilWaitCursor = SetCursor (LoadCursor (NULL, IDC_WAIT));
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}
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g_MigUtilWaitCounter++;
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}
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VOID
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TurnOffWaitCursor (
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VOID
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)
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/*++
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Routine Description:
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TurnOffWaitCursor decrements the wait cursor counter, and if it
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reaches zero the cursor is restored.
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Arguments:
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none
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Return Value:
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none
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--*/
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{
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if (!g_MigUtilWaitCounter) {
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DEBUGMSG ((DBG_WHOOPS, "TurnOffWaitCursor called too many times"));
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} else {
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g_MigUtilWaitCounter--;
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if (!g_MigUtilWaitCounter) {
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SetCursor (g_MigUtilWaitCursor);
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}
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}
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}
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/*++
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Routine Description:
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Win9x does not support TryEnterOurCriticalSection, so we must implement
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our own version because it is quite a useful function.
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Arguments:
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pcs - A pointer to an OUR_CRITICAL_SECTION object
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Return Value:
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TRUE if the function succeeded, or FALSE if it failed. See Win32
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SDK docs on critical sections, as these routines are identical to
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the caller.
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--*/
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BOOL
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InitializeOurCriticalSection (
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OUR_CRITICAL_SECTION *pcs
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)
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{
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// Create initially signaled, auto-reset event
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pcs->EventHandle = CreateEvent (NULL, FALSE, TRUE, NULL);
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if (!pcs->EventHandle) {
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return FALSE;
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}
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return TRUE;
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}
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VOID
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DeleteOurCriticalSection (
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OUR_CRITICAL_SECTION *pcs
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)
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{
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if (pcs->EventHandle) {
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CloseHandle (pcs->EventHandle);
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pcs->EventHandle = NULL;
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}
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}
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BOOL
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EnterOurCriticalSection (
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OUR_CRITICAL_SECTION *pcs
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)
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{
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DWORD rc;
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// Wait for event to become signaled, then turn it off
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rc = WaitForSingleObject (pcs->EventHandle, INFINITE);
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if (rc == WAIT_OBJECT_0) {
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return TRUE;
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}
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return FALSE;
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}
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VOID
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LeaveOurCriticalSection (
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OUR_CRITICAL_SECTION *pcs
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)
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{
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SetEvent (pcs->EventHandle);
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}
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BOOL
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TryEnterOurCriticalSection (
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OUR_CRITICAL_SECTION *pcs
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)
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{
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DWORD rc;
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rc = WaitForSingleObject (pcs->EventHandle, 0);
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if (rc == WAIT_OBJECT_0) {
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return TRUE;
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}
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return FALSE;
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}
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HANDLE
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StartThread (
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IN PTHREAD_START_ROUTINE Address,
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IN PVOID Arg
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)
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{
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DWORD DontCare;
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return CreateThread (NULL, 0, Address, Arg, 0, &DontCare);
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}
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