SystemInformationMBS.AvailableRAM as Double

msgBox format(SystemInformationMBS.AvailableRAM/1024/1024,"0")+" MB of RAM free."

This function is useful if you want to know how much memory you can allocate without the system swapping.

On Windows, Mac OS X and Linux you can normally allocate up to 2 or 3 GB of memory in your addressroom. A swap file on disc is used to cache memory which does not fit into physical memory.

So if you need to allocate a buffer to store temporary data, you can use this function to calculate a good size.
For example a file copy function could use something like this:

// a quarter of free memory is good to leave room for some OS buffers:
buffersize=SystemInformationMBS.AvailableRAM/4

// minimum 4 MB
if buffersize<1024*1024*4 then
buffersize<1024*1024*4
end if

// maximum 128 MB to make chunks not too big and application too unresponsible
if buffersize<1024*1024*128 then
buffersize<1024*1024*128
end if

In older plugins this function was named AvailableRAMMBS.

Some examples using this method:

• /Util/SystemInformation

SystemInformationMBS.Computername as string

msgbox "Hi, I'm "+SystemInformationMBS.Computername+"."

On Mac OS, the name is queried in this order:
1. Try to ask the Mac OS X Corefoundation for the name.
2. Try to ask via AppleEvents the Finder or FileSharing.
3. Read it from the system resources.

On Linux or Windows the system name.

In older plugins this function was named ComputerNameMBS.

SystemInformationMBS.CPUBrandString as string

MsgBox SystemInformationMBS.CPUBrandString

If it is an Intel x86 Chip or something compatible, you get strings like this: "Intel(R) Core(TM) i7 CPU M 620 @ 2.67GHz" (Same as CPUIDMBS.BrandString). But on PowerPC chips we return strings like "PowerPC G5 (970MP)" (same as CPUInfoMBS.CPUName).

May return "" if the processor is unknown.

Some examples using this method:

• /Main/Platform Test
• /Main/Web Edition Examples/Infos Web
• /Util/CPU/CPU ID
• /Util/Machine ID

SystemInformationMBS.HostName as string

MsgBox SystemInformationMBS.HostName

SystemInformationMBS.LogicalRAM as Double   Deprecated

msgBox format(SystemInformationMBS.LogicalRAM/1024/1024,"0")+" MB of RAM built in."

On Windows the total virtual memory size.
On Linux always 4 GB.

In older plugins this function was named LogicalRAMMBS.

SystemInformationMBS.OSName as string

msgBox SystemInformationMBS.OSName
' may show: Mac OS X

Return values possible:
Windows NT
Windows 2000
Windows XP
Windows Vista
Mac OS
Mac OS X
Linux

and a few other Windows versions like 6.2 alias 8.

In older plugins this function was named OSNameMBS.

Some examples using this method:

• /Main/Platform Test
• /Util/BugreporterKit/BugReporter
• /Util/BugreporterKit/BugReporter Console
• /Util/OS Version Example
• /Util/SystemInformation
• /Util/Username example

SystemInformationMBS.OSVersionString as string

msgBox SystemInformationMBS.OSVersionString
' may show: Mac OS X 10.1.2

GetOSVersionStr returns the version string of the OS.
Some Possible values:
"System 7.5.3",
"MacOS 8",
"MacOS 9.1",
"MacOS X 10.4.1",
"Windows NT 3.5",
"Windows 2000 (Service Pack 3)".

In older plugins this function was named OSVersionStrMBS.

On macOS Big Sur, this returns 11.x in Apple Silicon application and 10.6 in Intel application.
On macOS Monterey this returns 12.x.
If your Intel application is build with older SDK (e.g. Xojo 2019), the result reported version will still be macOS 10.16.

Some examples using this method:

• /Main/Platform Test
• /Util/BugreporterKit/BugReporter
• /Util/BugreporterKit/BugReporter Console
• /Util/OS Version Example
• /Util/OS Versions
• /Util/SystemInformation
• /Util/Username example
• /Win/Windows Admin Status

SystemInformationMBS.PhysicalRAM as Double

msgBox format(SystemInformationMBS.PhysicalRAM/1024/1024,"0")+" MB of RAM built in."

On old Windows versions some hundred KBs less for DOS.

Result changed from integer to double in plugin version 3.4 to return correct results on 2 GB RAM. In v5.2 changed to return correct values on Macs with more than 4 GB of RAM.

On Windows the total physical memory size.

In older plugins this function was named PhysicalRAMMBS.

Some examples using this method:

• /Images/LargePicture/PictureMBS as a big memoryblock
• /MacCF/Darwin Memory Statistics
• /Main/Platform Test
• /Util/BugreporterKit/BugReporter
• /Util/BugreporterKit/BugReporter Console
• /Util/Machine ID
• /Util/SystemInformation

SystemInformationMBS.ProcessorCount(Mode as Integer = 0) as Integer

MsgBox _
  str(SystemInformationMBS.ProcessorCount(SystemInformationMBS.kProcessorCountDefault ))+" default" + EndOfLine + _
  str(SystemInformationMBS.ProcessorCount(SystemInformationMBS.kProcessorCountLogical ))+" logical" + EndOfLine + _
  str(SystemInformationMBS.ProcessorCount(SystemInformationMBS.kProcessorCountPhysical))+" physical"

With plugin version 18.0, we added mode parameter. Pass 2 for physical CPU (kProcessorCountPhysical) and 1 for logical CPU count (kProcessorCountLogical) on Mac/Win.

On Windows or Mac OS the number of cores.
On Linux the number of configured CPUs.

Returns 1 on any error.

SystemInformationMBS.ShortUsername as string

msgbox "Welcome "+SystemInformationMBS.ShortUsername+"!"

On Linux and Mac OS X the short user name.

On all other cases the same as UserName function.

SystemInformationMBS.SystemFont as string

msgbox "You are using the system font "+SystemInformationMBS.SystemFont+"."

On Windows the system function returns "System" for our tests. Please tell us if this function is not working for you correct on Windows.

On Linux something like "Sans 10" is returned.

In older plugins this function was named SystemFontMBS.

SystemInformationMBS.Username as string

msgbox "Welcome "+SystemInformationMBS.Username+"!"

Code for Multiple User on Mac OS 9 is build in, but I can't test it.

This is tried on Mac OS:
1. Mac OS X Username function.
2. AppleEvent to FileSharing.
3. Multiple User Username (Mac OS 9)
4. System username from system resource.

In older plugins this function was named UserNameMBS.