National Instruments 320682C

Utility Library Chapter 8

LabWindows/CVI Standard Libraries 8-14 © National Instruments Corporation

your standalone application to be brought up in place of the Program Manager when Windows

boots. You can do this by changing the following line in your system.ini [boot] section.

shell = progman.exe

shell = <full-path-of-your-executable>

Alternatives in Windows 95

Under Windows 95, you can arrange for your standalone application to appear in place of the

desktop when Windows boots.

You can do this by changing the following line in your system.ini [boot] section.

shell = Explorer.exe

shell = <full-path-of-your-executable>

Alternatives in Windows NT

Under Windows NT, you can achieve the same results as DisableTaskSwitching by

arranging for your LabWindows/CVI application to be brought up in place of the Program

Manager and by disabling the Task Manager. You can do this by making following changes to

the registry entry for the key name,

KEY_LOCAL_MACHINE\Software\Microsoft\CurrentVersion\Winlogon

• Change the value for SHELL to the pathname of your application executable.

• Add a value with the name TASKMAN. Set the data to an empty string.

Preventing Interference With Real-Time Processing

Under Windows, many user actions can interfere with real-time processing. The actions in the

following list suspend the processing of events.

• Moving and sizing top-level windows

• Bringing down the System menu

• Pressing the <Alt-Tab> key combination

You can prevent these user actions from interfering with event processing by doing all of the

following.

• Call DisableTaskSwitching (or use the alternative for Windows NT mentioned in this

section).

• Make all of your top-level panels non-movable and non-sizable.