C++ Gestalt函数代码示例

// our OS version is the same in non GUI and GUI cases
wxOperatingSystemId wxGetOsVersion(int *majorVsn, int *minorVsn)
{
    // This returns 10 and 6 for OS X 10.6, consistent with behaviour on
    // other platforms.
    SInt32 maj, min;
    Gestalt(gestaltSystemVersionMajor, &maj);
    Gestalt(gestaltSystemVersionMinor, &min);

    if ( majorVsn != NULL )
        *majorVsn = maj;

    if ( minorVsn != NULL )
        *minorVsn = min;

    return wxOS_MAC_OSX_DARWIN;
}

/*** INITALISE MENUBAR ***/
OSStatus InitMenubar( void )
{
	// set menu bar
	Handle	menuBar;

#if TARGET_API_MAC_CARBON
	long result;
	if ((Gestalt(gestaltMenuMgrAttr, &result) == noErr) && (result & gestaltMenuMgrAquaLayoutMask))
		menuBar = GetNewMBar( kMenuXBaseID);
	else
#endif
		menuBar = GetNewMBar( kMenuBaseID );
	SetMenuBar( menuBar );

	// get menu references
	appleMenu	= GetMenuRef( kAppleMenu );
	fileMenu	= GetMenuRef( kFileMenu );
	editMenu	= GetMenuRef( kEditMenu );
	findMenu	= GetMenuRef( kFindMenu );
	optionsMenu	= GetMenuRef( kOptionsMenu );
	colorMenu	= GetMenuRef( kColorMenu );
	windowMenu	= GetMenuRef( kWindowMenu );

#if !TARGET_API_MAC_CARBON
	AppendResMenu( appleMenu, 'DRVR' );
#endif
	AppendResMenu( colorMenu, 'HEct' );	// LR: add color scheme menu

	DrawMenuBar();
	return noErr;
}

WELS_THREAD_ERROR_CODE    WelsQueryLogicalProcessInfo (WelsLogicalProcessInfo* pInfo) {
#ifdef LINUX

#define   CMD_RES_SIZE    2048
  str_t pBuf[CMD_RES_SIZE];

  SystemCall ("cat /proc/cpuinfo | grep \"processor\" | wc -l", pBuf, CMD_RES_SIZE);

  pInfo->ProcessorCount = atoi (pBuf);

  if (pInfo->ProcessorCount == 0) {
    pInfo->ProcessorCount = 1;
  }

  return WELS_THREAD_ERROR_OK;
#undef   CMD_RES_SIZE

#else

  SInt32 cpunumber;
  Gestalt (gestaltCountOfCPUs, &cpunumber);

  pInfo->ProcessorCount	= cpunumber;

  return WELS_THREAD_ERROR_OK;

#endif//LINUX
}

static pascal void ListBoxDrawProc( ControlRef browser , DataBrowserItemID item , DataBrowserPropertyID property ,
    DataBrowserItemState itemState , const Rect *itemRect , SInt16 depth , Boolean isColorDevice )
{

    CFStringRef      cfString;
    long        systemVersion;

    cfString  = CFStringCreateWithFormat( NULL, NULL, CFSTR("Row %d"), item );
  
    ThemeDrawingState themeState ;
    GetThemeDrawingState( &themeState ) ;
  
    if ( itemState == kDataBrowserItemIsSelected )      //  In this sample we handle the "selected" state, all others fall through to our "active" state
    {
        Gestalt( gestaltSystemVersion, &systemVersion );
        if ( (systemVersion >= 0x00001030) && (IsControlActive( browser ) == false) )  //  Panther DB starts using kThemeBrushSecondaryHighlightColor for inactive browser hilighting
            SetThemePen( kThemeBrushSecondaryHighlightColor, 32, true );
        else
            SetThemePen( kThemeBrushPrimaryHighlightColor, 32, true );

        PaintRect( itemRect );                //  First paint the hilite rect, then the text on top
        SetThemeDrawingState( themeState , false ) ;
    }
    DrawThemeTextBox( cfString, kThemeApplicationFont, kThemeStateActive, true, itemRect, teFlushDefault, NULL );
    if ( cfString != NULL )  
        CFRelease( cfString );
    SetThemeDrawingState( themeState , true ) ;
}

static VALUE rb_GetQTVersion(VALUE self){
	long version = 0L;
	if(Gestalt(gestaltQuickTime, &version) == noErr){
    char version_str[8];
    sprintf(version_str, "%x", ((version >> 16) & 0xFFFF));
    return INT2FIX(atoi(version_str));
  }else{

	PlatformBinding::PlatformBinding(KObjectRef global) :
		StaticBoundObject("Platform"),
		global(global)
	{
		std::string os_name = Poco::Environment::osName();
#ifdef OS_OSX
		NSString *str;
#if MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_4
		SInt32 major, minor, bugfix;
		OSErr err1 = Gestalt(gestaltSystemVersionMajor, &major);
		OSErr err2 = Gestalt(gestaltSystemVersionMinor, &minor);
		OSErr err3 = Gestalt(gestaltSystemVersionBugFix, &bugfix);
		if (!err1 && !err2 && !err3)
		{
		    str = [NSString stringWithFormat:@"%d.%d.%d", major, minor, bugfix];
		}

wxVideoMode wxDisplay::GetCurrentMode() const
{
    unsigned long dwDMVer;
    wxVideoMode RetMode;
    
    Gestalt(gestaltDisplayMgrVers, (long*) &dwDMVer);    
    //Check DM version (for backward compatibility only - 7.5.3+ use 2.0)
    if (dwDMVer >= 0x020000) //version 2?
    {
    	VDSwitchInfoRec sMode; //Note - csMode member also contains the bit depth
    	if (DMGetDisplayMode(m_priv->m_hndl, &sMode) == noErr) 
    	{
    	    DMListIndexType nNumModes;
    	    DMListType pModes;
    		DMDisplayModeListIteratorUPP uppMLI;
    	    DisplayIDType nDisplayID;

    	    wxASSERT(DMGetDisplayIDByGDevice(m_priv->m_hndl, &nDisplayID, false) == noErr);
    	    //Create a new list...
    	    wxASSERT_MSG(DMNewDisplayModeList(nDisplayID, NULL, NULL, &nNumModes, &pModes) == noErr,
    				  wxT("Could not create a new display mode list") );
    		
    		uppMLI = NewDMDisplayModeListIteratorUPP(DMModeTransProc);
    		wxASSERT(uppMLI);

    		DMModeTransRec sModeInfo;
    		sModeInfo.bMatched = false;
    		sModeInfo.psMode = &sMode;
    		for (DMListIndexType i = 0; i < nNumModes; ++i)
    		{
    			wxASSERT(DMGetIndexedDisplayModeFromList(pModes, i, NULL,
    											uppMLI, &sModeInfo) == noErr);

    			if ( sModeInfo.bMatched == true )
    			{
    				RetMode = sModeInfo.Mode;
    				break;
    			}
    		}

    	    DisposeDMDisplayModeListIteratorUPP(uppMLI);
    	    wxASSERT(DMDisposeList(pModes) == noErr);
    	}
    	else //Can't get current mode?
    	{
    		wxLogSysError(wxString::Format(wxT("Couldn't obtain current display mode!!!\ndwDMVer:%u"),
    								(unsigned int) dwDMVer));
    	}
    }
    else //DM ver 1
    {
    	wxLogSysError(wxString::Format(wxT("Display Manager Version %u Not Supported!  Present? %s"),
    				(unsigned int) dwDMVer / 0x10000,
    				(dwDMVer & (1 << gestaltDisplayMgrPresent) ? wxT("Yes") : wxT("No")) )
    	             );
    }
	 
    return RetMode;
}

OSErr RVRequestVideoSetting (VideoRequestRecPtr requestRecPtr)
{
	Boolean							displayMgrPresent;
	short							iCount = 0;					// just a counter of GDevices we have seen
	DMDisplayModeListIteratorUPP	myModeIteratorProc = nil;	// for DM2.0 searches
	SpBlock							spBlock;
	Boolean							suppliedGDevice;	
	DisplayIDType					theDisplayID;				// for DM2.0 searches
	DMListIndexType					theDisplayModeCount;		// for DM2.0 searches
	DMListType						theDisplayModeList;			// for DM2.0 searches
	long							value = 0;
	GDHandle						walkDevice = nil;			// for everybody

	Gestalt(gestaltDisplayMgrAttr,&value);
	displayMgrPresent=value&(1<<gestaltDisplayMgrPresent);
	displayMgrPresent=displayMgrPresent && (SVersion(&spBlock)==noErr);	// need slot manager
	if (displayMgrPresent)
	{
		// init the needed data before we start
		if (requestRecPtr->screenDevice)							// user wants a specifc device?
		{
			walkDevice = requestRecPtr->screenDevice;
			suppliedGDevice = true;
		}
		else
		{
			walkDevice = DMGetFirstScreenDevice (dmOnlyActiveDisplays);			// for everybody
			suppliedGDevice = false;
		}
		
		myModeIteratorProc = NewDMDisplayModeListIteratorProc(ModeListIterator);	// for DM2.0 searches
	
		// Note that we are hosed if somebody changes the gdevice list behind our backs while we are iterating....
		// ...now do the loop if we can start
		if( walkDevice && myModeIteratorProc) do // start the search
		{
			iCount++;		// GDevice we are looking at (just a counter)
			if( noErr == DMGetDisplayIDByGDevice( walkDevice, &theDisplayID, false ) )	// DM1.0 does not need this, but it fits in the loop
			{
				theDisplayModeCount = 0;	// for DM2.0 searches
				if (noErr == DMNewDisplayModeList(theDisplayID, 0, 0, &theDisplayModeCount, &theDisplayModeList) )
				{
					// search NuBus & PCI the new kool way through Display Manager 2.0
					GetRequestTheDM2Way (requestRecPtr, walkDevice, myModeIteratorProc, theDisplayModeCount, &theDisplayModeList);
					DMDisposeList(theDisplayModeList);	// now toss the lists for this gdevice and go on to the next one
				}
				else
				{
					// search NuBus only the old disgusting way through the slot manager
					GetRequestTheDM1Way (requestRecPtr, walkDevice);
				}
			}
		} while ( !suppliedGDevice && nil != (walkDevice = DMGetNextScreenDevice ( walkDevice, dmOnlyActiveDisplays )) );	// go until no more gdevices
		if( myModeIteratorProc )
			DisposeRoutineDescriptor(myModeIteratorProc);
		return (noErr);	// we were able to get the look for a match
	}
	return (-1);		// return a generic error
}

QRUNINFO_NAMEPASE_BEGIN

quint64 RunInfo::installedMemory()
{
    SInt32 mb = 0;
    Gestalt(gestaltPhysicalRAMSizeInMegabytes, &mb);
    return quint64(static_cast<quint64>(mb) * 1024LL * 1024LL);
}

//-----------------------------------------------
static Boolean SystemVersionRequired(int version)
{
    SInt32 result;
    Gestalt( gestaltSystemVersion, &result );
    gOnPanther = (result >= 0x1030);
    gOnTiger =  (result >= 0x1040);
    return (result >= version);
}

Boolean IsQuickTimeInstalled(void) 
{
	OSErr	err;
	long	lResult;

	err = Gestalt(gestaltQuickTime, &lResult);
	return (err == noErr);
}

pascal OSErr PBCatSearchSyncCompat(CSParamPtr paramBlock)
{
	static Boolean			fullExtFSDispatchingtested = false;
	static Boolean			hasFullExtFSDispatching = false;
	OSErr 					result;
	Boolean					supportsCatSearch;
	long					response;
	GetVolParmsInfoBuffer	volParmsInfo;
	long					infoSize;

	result = noErr;

	/* See if File Manager will pass CatSearch requests to external file systems */
	/* we will store the results in a static variable so we do NOT have to call Gestalt */
	/* everytime we are called. */
	if ( !fullExtFSDispatchingtested )
	{
		fullExtFSDispatchingtested = true;
		if ( Gestalt(gestaltFSAttr, &response) == noErr )
		{
			hasFullExtFSDispatching = ((response & (1L << gestaltFullExtFSDispatching)) != 0);
		}
	}

	/* CatSearch is a per volume attribute, so we have to check each time we are */
	/* called to see if it is available on the volume specified. */
	supportsCatSearch = false;
	if ( hasFullExtFSDispatching )
	{
		infoSize = sizeof(GetVolParmsInfoBuffer);
		result = HGetVolParms(paramBlock->ioNamePtr, paramBlock->ioVRefNum,
							&volParmsInfo, &infoSize);
		if ( result == noErr )
		{
			supportsCatSearch = hasCatSearch(volParmsInfo);
		}
	}

	/* noErr or paramErr is OK here. */
	/* paramErr just means that GetVolParms is NOT supported by this volume */
	if ( (result == noErr) || (result == paramErr) )
	{
		if ( supportsCatSearch )
		{
			/* Volume supports CatSearch so use it. */
			/* CatSearch is faster than an indexed search. */
			result = PBCatSearchSync(paramBlock);
		}
		else
		{
			/* Volume does NOT support CatSearch so */
			/* search using IndexedSearch from root directory. */
			result = IndexedSearch(paramBlock, fsRtDirID);
		}
	}

	return ( result );
}

Word BURGERCALL GetQuickTimeVersion(void)
{
	long gestaltAnswer;

	if (!Gestalt(gestaltQuickTimeVersion,&gestaltAnswer)) {
		return (gestaltAnswer >> 16)&0xFFFF;	/* Major version */
	}
	return 0;		/* No quicktime */
}

int macosx_version()
{
    SInt32 gestalt_version;
    static int ver = 0; // cached
    if (0 == ver && (Gestalt(gestaltSystemVersion, &gestalt_version) == noErr)) {
        ver = gestalt_version;
    }
    return ver;
}

int __stdcall QuickTimeVersion() {
    long version;
    OSErr result;

    // Call the Gestalt manager and ask for QuickTime.  If we're lucky,
    // this should work even in the absence of the QuickTime DLL.
    result = Gestalt(gestaltQuickTime, &version);
    return (result == noErr) ? version : 0;
}