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450 VEE User’s Guide
12 Optimizing Agilent VEE Programs Chapter
Overview of Compiled Functions
You can use a compiled function in a VEE program, such as a
DLL (Dynamic Link Library). To do so, you must obtain the
compiled function or follow these steps to create it:
1 Write functions in C, C++, Fortran, or Pascal and compile
them.
2 Write a definition file for the functions.
3 Create a shared library containing the compiled functions.
Benefits of Using Compiled Functions
Using compiled functions in a VEE program offers the following
benefits:
• Faster execution speed
• Leveraging current test programs in other languages
• Developing data filters in other languages and integrating
them into VEE programs
• Securing proprietary routines
Design Considerations in Using Compiled Functions
If you plan to use compiled functions in a VEE program, take
the following information into consideration:
• You can use any facilities available to the operating system
including math routines, instrument I/O, and so forth.
However, you cannot access any VEE internals from within
the program to be linked.
NOTE
Adding compiled functions adds complexity to the development process.
Therefore, use a compiled function only when the capability or
performance that you need is not available with one of the following: a
VEE UserFunction, an Execute Program escape to the operating system, or
an ActiveX Automation call to another program.
- Agilent VEE Pro 1
- VEE Pro User’s Guide 3
- Table of Contents 5
- 6 VEE User’s Guide 10
- VEE User’s Guide 7 11
- 8 VEE User’s Guide 12
- VEE User’s Guide 9 13
- 10 VEE User’s Guide 14
- VEE User’s Guide 11 15
- 12 VEE User’s Guide 16
- VEE User’s Guide 13 17
- 14 VEE User’s Guide 18
- Table of Figures 19
- 2 VEE User’s Guide 20
- VEE User’s Guide 3 21
- 4 VEE User’s Guide 22
- VEE User’s Guide 5 23
- Introduction 29
- Overview of Agilent VEE 31
- Learning about Agilent VEE 40
- MATLAB Script Overview 42
- About Full-Featured MATLAB 43
- Obtaining Agilent VEE Support 44
- 18 VEE Pro User’s Guide 46
- Environment 47
- Interacting with Agilent VEE 50
- Starting Agilent VEE 51
- The Agilent VEE Window 51
- Getting Help 53
- What’s New in VEE Definition 55
- Working with Objects 57
- Changing Object Views 59
- Selecting an Object Menu 61
- Moving an Object 62
- Copying an Object 64
- Deleting an Object 64
- Pasting an Object 64
- Selecting Several Objects 67
- Copying Multiple Objects 68
- Editing Objects 69
- Moving the Entire Work Area 71
- Clearing the Work Area 72
- Changing Default Preferences 72
- Pin Type .Description 74
- Adding a Terminal 76
- Editing Terminal Information 77
- Deleting a Terminal 79
- Running a Program 82
- Changing Object Properties 83
- Printing the Screen 86
- Saving a Program 87
- How Agilent VEE Programs Work 93
- Chapter Checklist 100
- Overview 103
- General Techniques 104
- Input, and in the 106
- Lab 2-3: Using Data Files 113
- OK in the I/O Transaction 114
- Using Data Types 120
- Using Data Shapes 121
- Using the Formula Object 122
- Using Online Help 125
- Do I... ⇒ Use the 127
- Showing Data Flow 128
- Showing Execution Flow 130
- Examining Data on a Line 130
- Examining Terminals 132
- Using Breakpoints 133
- Resolving Errors 135
- Using the Call Stack 136
- Stepping Through a Program 141
- Practice Programs 143
- 124 VEE User’s Guide 152
- 126 VEE User’s Guide 154
- Direct I/O Object 158
- VXIplug&play Drivers 159
- 132 VEE User’s Manual 160
- Configuring an Instrument 161
- VEE User’s Guide 141 169
- Using a Panel Driver 170
- On Your Own 174
- Using Direct I/O 175
- Using PC Plug-in Boards 185
- ComputerBoards PC Plug-ins 186
- VEE User’s Guide 161 189
- 162 VEE User’s Manual 190
- Other I/O Features 196
- 170 VEE User’s Manual 198
- Data Type Description 202
- UInt8 Unsigned byte 0 to 255 202
- VEE User’s Guide 175 203
- ⇒ Default Preferences 203
- ⇒ Trig Mode setting 203
- 176 VEE User’s Guide 204
- Using Built-In Math Objects 206
- VEE User’s Guide 181 209
- Working with Data Types 220
- 194 VEE User’s Guide 222
- Displaying Test Data 223
- 196 VEE User’s Guide 224
- Table 1 5 Displays 224
- Displaying a Waveform 225
- Changing the X and Y Scales 226
- For Additional Practice 228
- 202 VEE User’s Guide 230
- I/O Transaction Format 240
- Lab 5-4: Using Records 251
- Building a Record 251
- Getting a Field From a Record 253
- Setting a Field in a Record 255
- Lab 5-5: Using DataSets 260
- Element Description 268
- VEE User’s Guide 245 273
- VEE User’s Guide 265 293
- Entry Description 301
- 278 VEE User’s Guide 306
- Using .NET with VEE 307
- What is .NET? 309
- VEE and the .NET Framework 310
- .NET Assembly References 311
- 7 Using .NET with VEE 312
- Using .NET with VEE 7 317
- VEE User’s Guide 289 317
- Programming Practices 321
- VEE User’s Guide 297 325
- Calling an Instance Method 328
- .NET Programming Tips 329
- .NET and IVI Drivers 339
- Assemblies 341
- Distributing the VEE Runtime 342
- VEE and .NET Security 343
- .NET Terminology 344
- Shared or Static Members 345
- Instance Member 345
- Reference 345
- Using a System Command 352
- Using Agilent VEE Functions 357
- Using Functions 360
- Creating a UserFunction 362
- Editing a UserFunction 364
- Merging Agilent VEE Programs 386
- Test Sequencing 389
- 10 Test Sequencing Chapter 392
- Using the Sequencer Object 393
- Lab 10-1: Configuring a Test 394
- Test Sequencing Chapter 10 397
- VEE User’s Guide 369 397
- VEE User’s Guide 371 399
- Change to random() 401
- Accessing Logged Test Data 402
- Passing Data in the Sequencer 405
- Property Description 415
- DataShape Set to 1D Array 415
- Using Operator Interfaces 425
- Colors, Fonts, and Indicators 431
- Graphic Images 432
- VEE User’s Guide 407 435
- Selecting Screen Colors 443
- Creating a Status Panel 445
- 418 VEE User’s Guide 446
- Lab 11-1: Using Menus 447
- ShowTitleBar False 457
- EditEnabled False 457
- 440 VEE User’s Guide 468
- VEE User’s Guide 447 475
- Using Dynamic Link Libraries 481
- An Example Using a DLL 483
- Execute Program Object 487
- Compiled Functions 487
- Synchronous execution 487
- Agilent VEE Execution Modes 488
- The Agilent VEE Compiler 489
- Changing the Execution Mode 489
- The Agilent VEE Profiler 496
- VEE User’s Guide 469 497
- Web-enablement Technologies 503
- 478 VEE User’s Guide 506
- General Guidelines and Tips 507
- Web Server Dialog Box 509
- 494 VEE User’s Guide 522
- 496 VEE User’s Guide 524
- Additional Lab Exercises 526
- Apple Bagger 527
- Test ing N um bers 529
- Collecting Random Numbers 533
- Random Number Generator 536
- Using Masks 538
- Using Strings and Globals 542
- Optimizing Techniques 544
- UserObjects 546
- Appendix 547
- VEE User’s Guide 519 547
- Agilent VEE UserFunctions 549
- 530 VEE User’s Guide 558
- Key Points 558
- AnotB are separate, so 560
- Working with Files 561
- Manipulating Records 563
- Thread): 582
- Glossary 583
- Numerics 591
- 564 VEE User’s Guide 592
- VEE User’s Guide 565 593
- Library, 344 594
- VEE User’s Guide 567 595
- 568 VEE User’s Guide 596
- VEE User’s Guide 569 597
- 570 VEE User’s Guide 598
- VEE User’s Guide 571 599
- 572 VEE User’s Guide 600
- VEE User’s Guide 573 601
- 574 VEE User’s Guide 602
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