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Use the Measurement Studio Utility Visual C++ class library to easily 
access Windows operating system functionality. Table 3-2 lists classes in 
the Utility class library and their functionality.

Table 3-2.  Utility Class Names and Functionalities

CNiFile

CNiFile

 extends the MFC 

CStdioFile

 class by adding 

streaming operators for standard Visual C++ data types. In 
addition, a variety of class static functions add the ability to 
manipulate file, path, directory, and drive attributes.

CNiSound

CNiSound

 encapsulates an interface for generating synchronous 

and asynchronous tones at specific frequencies.

CNiSystem

CNiSystem

 provides the following functionality:

• Getting and setting system preferences

• Displaying help files

• Getting input for the keyboard

CNiSystemTrayIcon

CNiSystemTrayIcon

 encapsulates the interface to the system 

tray area that displays changes in the status of an application. The 

CNiSystemTrayIcon

 class includes the following features:

• Icons—You can place an icon in the system tray to notify the 

user of changes in an application status.

• String tooltips—You can associate a string tooltip with an icon 

and display the tooltip when the user hovers over the icon.

• Shortcut menus—You can associate a shortcut menu with an 

icon and display the shortcut menu when the user right-clicks 
the icon.

• Overridable event handling.