Dynamically Specifying Run-Time Options to the MCR
What Run-Time Options Can You Specify?
As of R2009a, you can pass MCR run-time options -nojvm and -logfile to MATLAB Builder NE from
a client application using the assembly-level attributes NOJVM and LOGFILE.
you can retrieve values of these attributes by calling methods of
the MWMCR class to access MCR attributes and MCR
state.
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Getting MCR Option Values Using MWMCR
The MWMCR class provides several methods
to get MCR option values. The following table lists methods supported
by this class.
| MWMCR Method | Purpose |
|---|
| MWMCR.IsMCRInitialized() | Returns true if MCR is initialized, otherwise
returns false. |
| MWMCR.IsMCRJVMEnabled() | Returns true if MCR is launched with Java
Virtual Machine (JVM), otherwise returns false. |
| MWMCR.GetMCRLogFileName() | Returns the name of the log file passed with the LOGFILE attribute.
|
Default MCR Options
If you pass no MCR options (you provide no attributes), the
MCR is launched with default option values:
| MCR Run-Time Option | Default Option Values |
|---|
| Java Virtual Machine (JVM) | NOJVM(false) |
| Log file usage | LOGFILE(null) |
These options are all write-once, read-only properties.
Use the following attributes to represent the MCR options you
want to modify.
| MWMCR Attribute | Purpose |
|---|
| NOJVM | Lets users launch MCR with or without a JVM. It takes a Boolean
as input. For example, NOJVM(true) launches MCR
without a JVM. |
| LOGFILE | Lets users pass the name of a log file, taking the file name
as input. For example, LOGFILE("logfile3.txt") . |
Example: Passing MCR Option Values from a C# Application.
Following is an example of how MCR option values are passed
from a client-side C# application:
[assembly: NOJVM(false), LOGFILE("logfile3.txt")]
namespace App1
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("In side main...");
try
{
myclass cls = new myclass();
cls.hello();
Console.WriteLine("Done!!");
Console.ReadLine();
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
}
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 | Improving Data Access Using the MCR User Data Interface and MATLAB Builder NE | | Accessing Real or Imaginary Components Within Complex Arrays |  |
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