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LabWindows/CVI Release Notes for Windows 16
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National Instruments Corporation
this information. In previous versions of LabWindows/CVI, you can specify the daylight
savings time period only by modifying the
cvimsgs.txt file in the cvi\bin directory.
For information on the format of the DST rules string and how the time and date functions use
it, refer to the Time and Date Functions section in Chapter 1, ANSI C Library, of the
LabWindows/CVI Standard Libraries Reference Manual.
For instructions on setting the configuration options, refer to the How to Set the Configuration
Options section in Chapter 1, Configuring LabWindows/CVI, of the LabWindows/CVI User
Manual.
Mouse Wheel Support
The LabWindows/CVI environment windows now support mouse pointing devices with
wheels, such as the Microsoft IntelliPoint Mouse. The mouse wheel allows you to scroll up
or down in any window, listbox control, or textbox control that contains a vertical scrollbar.
Changes to the User Interface Library
This section contains information on the various changes in the User Interface Library,
including the following:
• Direct printing replaces bitmap printing on all Windows platforms.
• The print dialog boxes change on all Windows platforms.
• You can now use the Window system settings for some print attributes.
• Two new attributes keep track of the current printer.
• Six attributes that previously applied only to graphics printing now also apply to
text printing.
• Thirteen new attributes apply to printing text files and buffers.
• A new attribute allows scaling of panels to different screen resolutions.
• New attributes allow the scaling of panel contents when you resize the panels.
• Nine new functions exist.
• Five new error codes exist.
• The User Interface Library is now multithread safe when used in standalone executables.
Note
Be sure to read the Warning of Modified Behavior and Warning of Change to Text
Format (.tui) Files sections later in this document.
Change to Default Value of SetSleepPolicy
Starting with LabWindows/CVI 5.0, the default value for SetSleepPolicy is
VAL_SLEEP_MORE. In earlier versions of LabWindows/CVI, the default sleep policy is
VAL_SLEEP_NONE. SetSleepPolicy sets the degree to which your program “sleeps” when