National Instruments Window - Manual

© National Instruments Corporation 7 LabWindows/CVI Release Notes for Windows Changes to System Requirements If you want to run LabWindows/CVI 5.0 on Windows NT, you must have Windows NT 4.0 or higher. LabWindows/CVI 5.0 does not run on Windows NT 3.51. Note Version 5.0 is the final release of LabWi...

© National Instruments Corporation 9 LabWindows/CVI Release Notes for Windows Changes to the LabWindows/CVI Development Environment This section contains information on several enhancements to the LabWindows/CVI development environment. Debugging DLLs in Windows 95/NT You can now debug DLLs in the L...

LabWindows/CVI Release Notes for Windows 10 © National Instruments Corporation In the LabWindows/CVI development environment, you can debug only DLLs you create in LabWindows/CVI with the DLL Debugging command enabled. Other development environments cannot debug DLLs you create in LabWindows/CVI. Wh...

© National Instruments Corporation 11 LabWindows/CVI Release Notes for Windows This feature is useful if you do not want to recompile all your source files each time you load your project. Debugging is not available for files with the O icon, so this feature also is useful when you want to suppress ...

LabWindows/CVI Release Notes for Windows 12 © National Instruments Corporation execution only if it was the active window at the time execution was suspended. If a LabWindows/CVI window, such as a Source window, was active at the time execution was suspended, LabWindows/CVI does not reactivate a win...

© National Instruments Corporation 13 LabWindows/CVI Release Notes for Windows Create ActiveX Automation Controller (Windows 95/NT only) Use the Create ActiveX Automation Controller command to generate a new instrument driver for an ActiveX Automation Server. When you select the Create ActiveX Autom...

© National Instruments Corporation 15 LabWindows/CVI Release Notes for Windows Generate IVI C++ Wrapper Use the Generate IVI C++ Wrapper command to generate a C++ wrapper for an IVI driver. Refer to the LabWindows/CVI Instrument Driver Developers Guide for more information on IVI drivers. Context Me...

LabWindows/CVI Release Notes for Windows 16 © 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 st...

© National Instruments Corporation 17 LabWindows/CVI Release Notes for Windows checking for events. Use this function if you require LabWindows/CVI to use more CPU resources so that other applications are given less processor time. Clarifications and Corrections The previous version of the manual in...

LabWindows/CVI Release Notes for Windows 18 © National Instruments Corporation By using direct Windows printing, you can take full advantage of the higher resolution printers have over computer screens. This allows panels and controls to be scaled optimally to the printer coordinates, thus eliminati...

LabWindows/CVI Release Notes for Windows 20 © National Instruments Corporation Obsolete Value for X and Y Resolution For the ATTR_PRINT_XRESOLUTION and ATTR_PRINT_YRESOLUTION attributes, VAL_USE_PRINTER_SETTING replaces VAL_USE_PRINTER_DEFAULT , which is obsolete. The actual value, –1, remains the s...

© National Instruments Corporation 21 LabWindows/CVI Release Notes for Windows Refer to the Using Windows System Printer Settings and Warning of Modified Behavior sections earlier in this document for more information. Application of Attributes to Text Printing The following existing attributes now ...

LabWindows/CVI Release Notes for Windows 22 © National Instruments Corporation New Panel Attributes LabWindows/CVI 5.0 adds the following panel attributes: Note When you use ATTR_SCALE_CONTENTS_ON_RESIZE and ATTR_RESOLUTION_ADJUSTMENT to scale panels and controls, use TrueType fonts for optimal resu...

© National Instruments Corporation 23 LabWindows/CVI Release Notes for Windows Resolution Adjustment When a panel is displayed on a screen with a different resolution than the screen on which you edited the panel, the panel might appear too large or too small. The Edit Panel dialog box in the User I...

LabWindows/CVI Release Notes for Windows 24 © National Instruments Corporation Changes to Existing Functions For GetPrintAttribute and SetPrintAttribute , the last parameter is the attribute value. In previous versions of LabWindows/CVI, this is an integer. Now the parameter is a variable type argum...

© National Instruments Corporation 25 LabWindows/CVI Release Notes for Windows the function. The menu ID or menu item ID that you pass to User Interface Library functions is based on a depth-first traversal of all the items in the menu tree, starting at 2. For submenu items, the submenu itself has a...

LabWindows/CVI Release Notes for Windows 26 © National Instruments Corporation New Error Codes Table 3 lists the new User Interface Library error codes. Using the User Interface Library in a Multithreaded Executable under Windows 95/NT The User Interface Library is now multithread safe when used on ...

© National Instruments Corporation 27 LabWindows/CVI Release Notes for Windows Details of User Protection The Avoid Unassigned Dynamic Allocation in Function Parameters section is new to the Details of User Protection discussion in Chapter 1, LabWindows/CVI Compiler, of the LabWindows/CVI Programmer...

LabWindows/CVI Release Notes for Windows 28 © National Instruments Corporation To solve this dilemma, you can use CVIRTEHasBeenDetached in the Utility Library. It is always safe to call CVIRTEHasBeenDetached . CVIRTEHasBeenDetached returns FALSE until the main Run-time Engine DLL, cvirte.dll , recei...

© National Instruments Corporation 29 LabWindows/CVI Release Notes for Windows Modifying the DST Rules String: Clarification The LabWindows/CVI ANSI C Library uses the DST rules string to determine the period of each year in which daylight savings time is in effect. The Time and Date Functions secti...

LabWindows/CVI Release Notes for Windows 30 © National Instruments Corporation The ReturnRS232Err function is multithread safe. It returns the error value (zero if successful) from the most recent RS-232 activity in the same thread. Because ComWrt can return before all bytes in the output queue have...

© National Instruments Corporation 31 LabWindows/CVI Release Notes for Windows New Error Codes Table 6 lists new DDE Library error codes. Multithreading The DDE Library is now multithread safe when used on Windows 95/NT in a standalone executable or in a DLL called from a standalone executable. A fe...

LabWindows/CVI Release Notes for Windows 32 © National Instruments Corporation • GetTCPHostName obtains the name of the computer on which your program is running. • GetTCPPeerAddr obtains the IP address of the computer on which a remote client or server is running. • GetTCPPeerName obtains the name ...

© National Instruments Corporation 33 LabWindows/CVI Release Notes for Windows declaration of the function pointer. For example, if you declare the function in the external module as int __stdcall SetADouble (double d); and the default calling convention is __cdecl , declare the function pointer as ...

LabWindows/CVI Release Notes for Windows 34 © National Instruments Corporation should be. Thereafter, the value loses another 4,292,967.296 seconds for each 49.71-day period that passes. LabWindows/CVI, version 5.0 corrects this invalid result. Changes to the Easy I/O for DAQ Library The Analog Inpu...

© National Instruments Corporation 35 LabWindows/CVI Release Notes for Windows The ActiveX Automation Library contains functions that do the following: • Help you work with the VARIANT parameters, SAFEARRAY parameters, and return values of the functions in the generated instrument drivers • Free res...

LabWindows/CVI Release Notes for Windows 36 © National Instruments Corporation For the functions CA_VariantGetSafeArray , CA_Array1DToSafeArray , and CA_Array2DToSafeArray , add the following text to the function parameter discussion: Use CA_SafeArrayDestroy to free the returned safe array. For the ...

© National Instruments Corporation 37 LabWindows/CVI Release Notes for Windows Function Tree Layout for New Functions The following shows the new functions under their function tree classes. Class/Panel Name Function Name Vector & Matrix Algebra Real Matrices Create Special Matrix SpecialMatrix ...

LabWindows/CVI Release Notes for Windows 38 © National Instruments Corporation General Information Using LabWindows/CVI Utility Library in the Borland Compiler When you use the LabWindows/CVI libraries with the Borland compiler, the utility.h header file in the Borland include subdirectory might be ...