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Advanced Features 5-7

5.2 Terminal window

The MintMT ActiveX control has a number of secondary components that work with the MintController

object. One of these is the MintTerminal object. This is a window which will display any ASCII output from

the controller and allow ASCII input to the controller.

The form must have a MintController object for the terminal window to function. All communications to and

from a controller pass through the MintController object. In order for the terminal window to function it

must be linked to a specific controller. Once this link has been established all ASCII text from the

controller will be displayed in this window and all key presses performed in the window will be sent to the

controller as ASCII text.

Assuming the application already has a MintController object that can be used to communicate with a

controller, the ID of this controller object must be passed to the terminal window to create a link.

The ID of the MintController object can be obtained using the function getID.

This value can then be used to link the terminal window to a controller using the function

setMintControllerID.

The below example is written in Microsoft Visual C++ (m_controller is the name of the MintController object

in the project and m_terminal is the name of the MintTerminal object in the project).

// create handle to controller

m_controller.setNextMovePCI1Link ( 0, 0 );

// get ID of controller object

BSTR bstrID = m_controller.getID ();

// link the terminal window to the controller

m_terminal.setMintControllerID ( bstrID );

// clear up

::SysFreeString ( bstrID );

Notice the clean up section at the bottom that allows the re-use of memory used by the BSTR. Attempting

to perform the code in one line, for example:

m_terminal.setMintControllerID ( m_controller.getID () );

will result in a memory leak, as the BSTR will go out of scope before it can be freed.

The example below is written in Microsoft Visual Basic (MintController is the name of the MintController

object in the project and MintTerminal is the name of the MintTerminal object in the project).

Dim sID As String

‘ create handle to controller

MintController.setNextMovePCI1Link 0, 0

‘ get ID of controller object

sID = MintController.getID

‘ link the terminal window to the controller

MintTerminal.setMintControllerID sID

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Mint NextMove PCI Manual de usuario Pagina 27