National Instruments Measurement Studio Utility

Chapter 3 Measurement Studio Visual C++ Class Libraries

Utility

Use the Measurement Studio Utility Visual C++ class library to easily

access Windows operating system functionality. Table 3-1 lists classes in

the Utility class library and their functionality.

Table 3-1. Utility Class Names and Functionalities

Utility Class Functionality

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.