PC World Komputer 1996 May

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50228 3.21 -1 2 40 136 0 156524 640 480 15 15 0 1155 4635 4545 4230 0 0 0 0 BEGIN_TEXT Now you will complete the program by adding some code to acquire and display a waveform. You will use an instrument driver to acquire a waveform from a simulated oscilloscope. Instrument drivers for controlling a GPIB, VXI, or Serial instrument are stored in specialized libraries. LabWindows/CVI has a library of more than 450 instruments covering all of the major instrument vendors. The drivers are included free of charge with LabWindows/CVI, and each driver includes the source code, so that you can optimize, enhance, or convert existing drivers to meet your needs. Click on the Instrument menu to begin loading an instrument driver. ! BEGIN_TEXT ! Loading an Instrument Driver 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 4 3330 3795 5025 1890 0 0 0 0 BEGIN_TEXT Here you see just a few of the instrument drivers from which you can choose. Select the "scope.fp" file and click on the Load button to load the scope driver. ! BEGIN_TEXT ! Loading the Scope Driver 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 8 1035 4890 4005 2460 0 0 0 0 BEGIN_TEXT You have just added a custom library to the LabWindows/CVI development environment. You can now access this library in the Instrument menu. Pull down on the Instrument menu again and select Sample Oscilloscope to display the function tree for the scope driver. ! BEGIN_TEXT ! Accessing the Scope Driver 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 12 3060 1395 5535 3690 0 0 0 0 BEGIN_TEXT You are now looking at the function tree for the scope instrument driver. A function tree is a hierarchical view of the functions in a LabWindows/CVI library. With an instrument driver, you no longer have to program your instruments using low-level GPIB command strings. The instrument driver gives you intuitive, high-level functions. To control the scope, you can use simple functions like Initialize, Configure, or ReadWaveform. The driver handles all of the command syntax -- GPIB or VXI I/O -- and data parsing and scaling for you. Let's take a closer look at the instrument driver functions. Click on the Initialize function and click on the Select button. ! BEGIN_TEXT ! Scope Driver Function Tree 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 14 885 5085 4035 5955 0 0 0 0 BEGIN_TEXT You now see a function panel, another key visual development tool in LabWindows/CVI. Every library function in LabWindows/CVI has a function panel. With function panels, you can do the following. 1. View online help describing a particular function. 2. Generate function call syntax automatically 3. Interactively execute the function to experiment with its operation using different parameter values 4. Insert the generated function call into your source file as you build a project. Let's start with the built-in online help available from every function panel in LabWindows/CVI. To view a description of function in online help, right-click on the panel. ! BEGIN_TEXT ! Function Panels 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 16 4155 255 4605 1755 0 0 0 0 BEGIN_TEXT You now see a brief description of the Initialize function. Click on the Done key to exit Help. ! BEGIN_TEXT ! Function Help 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 18 1695 3750 4575 2430 0 0 0 0 BEGIN_TEXT Each control on a function panel represents a parameter for the function call. The Initialize function has a single parameter: the GPIB address for the simulated oscilloscope. For a detailed description of the parameter, right-click on the Address control. ! BEGIN_TEXT ! Function Parameter Descriptions 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 20 4455 240 4485 2040 0 0 0 0 BEGIN_TEXT This is a detailed description of the Address parameter for the Initialize function. As you can see, function panels act as a valuable online function library reference. Click on the Done key to close the help window ! BEGIN_TEXT ! Function Parameter Descriptions 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 22 1395 3285 5580 3030 0 0 0 0 BEGIN_TEXT Because the simulated scope is at GPIB address 1, you should be able to use the Initialize function as is. The syntax for the Initialize function call appears at the bottom of the panel (see arrow). Before you add this line of code to your program, you can interactively test the Initialize function, to be certain that the scope is at address 1 and communicating properly with the computer. Pull down on the Code menu, and select Run Function Panel to execute the Initialize function. ! BEGIN_TEXT ! Interactive Execution 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_D1R.BMP ARR_D1_.BMP 351 30 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 26 1320 3300 4815 2475 0 0 0 0 BEGIN_TEXT The returned Error value of zero indicates that the Initialize function ran successfully; you are communicating with the scope! Now you can insert the line of code you see at the bottom of this panel into your source code. Select Insert Function Call from the Code menu to insert the Initialize function call into your source file. ! BEGIN_TEXT ! Inserting the Function Call 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_U1G.BMP ARR_U1_.BMP 339 382 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 30 1965 5745 3570 3375 0 0 0 0 BEGIN_TEXT As you can see, your main() program now has a call to the scope_init function. Now you can proceed with acquiring a waveform and displaying it on the graph control. You will use another function from the instrument driver to acquire a waveform. Pull down on the Instrument menu and select Sample Oscilloscope again. ! BEGIN_TEXT ! Acquiring a Waveform 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_L1R.BMP ARR_L1_.BMP 129 180 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 34 3420 810 4080 1290 0 0 0 0 BEGIN_TEXT Highlight the ReadWaveform function and click on the Select button. ! BEGIN_TEXT ! The ReadWaveform Function 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 38 960 5430 3855 4155 0 0 0 0 BEGIN_TEXT The ReadWaveform function performs the following operations: 1. Builds a command string 2. Sends it to the simulated GPIB scope. 3. Reads the data back from the scope. 4. Parses the data received and scales it to voltage values. 5. Places the voltage values into a user-specified array variable in memory. Now you can specify values in the ReadWaveform function panel controls to build the function call syntax. Start with the Waveform array variable. Type "wave" in the Waveform control. ! BEGIN_TEXT ! Specifying an Array Name 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 42 1815 5145 4080 1920 0 0 0 0 BEGIN_TEXT With function panels, you can interactively declare variables in memory. Pull down on the Code menu and select Declare Variable... ! BEGIN_TEXT ! Declaring an Array Variable 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 46 4410 3555 5565 2700 0 0 0 0 BEGIN_TEXT From the Declare Variable dialog box, you can see that the "wave" array is a double precision array. You can specify how many elements to store in the "wave" array. In addition, you can execute the declaration now -- so you can interactively run the function -- and place a declaration statement into the top of the source file you are building (sample.c). Type "100" for the Number of Elements for the wave array. ! BEGIN_TEXT ! Specifying the Array Size 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 49 5190 4410 3570 1230 0 0 0 0 BEGIN_TEXT Click on the OK button to continue. ! BEGIN_TEXT ! Specifying the Array Size 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 51 4470 1185 6915 1875 0 0 0 0 BEGIN_TEXT We have specified values in the Sample Period and X Zero controls for you. Now you can acquire a waveform from the scope simply by running this function panel to test your instrument and all connections. Click on the Run Function Panel icon in the toolbar to run the ReadWaveform function. ! BEGIN_TEXT ! Acquire the Waveform Interactively 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_L1R.BMP ARR_L1_.BMP 32 47 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 53 615 5265 4365 2205 0 0 0 0 BEGIN_TEXT As you can see, the ReadWaveform function executed successfully. You can view the datapoints of the "wave" array in the Variable display window. Double-click on the Waveform control to view the "wave" array values. ! BEGIN_TEXT ! View the Acquired Datapoints 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 55 135 5175 4095 1650 0 0 0 0 BEGIN_TEXT The wave array has been filled with datapoints. Click on the arrow to continue. ! BEGIN_TEXT ! The Array Display 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 59 135 5130 4140 1845 0 0 0 0 BEGIN_TEXT Now you can insert the ReadWaveform function call into your program. Click on the Insert Function Call icon in the toolbar. ! BEGIN_TEXT ! Inserting the Function Call 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_L1R.BMP ARR_L1_.BMP 32 78 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 61 1470 4905 4110 3450 0 0 0 0 BEGIN_TEXT As you can see, the scope_read_waveform function has been added to the AcquireData function. Function panels insert code into a source window wherever you last placed the cursor. Now you must use a function from the User Interface Library to plot the waveform on the graph control. The PlotY function plots an array variable on a graph. Click on the arrow to find the PlotY function panel in the User Interface Library. ! BEGIN_TEXT ! Plotting the Acquired Waveform 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_R1B.BMP ARR_R1_.BMP 298 49 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 -1 3 0 0 DEMCODE1.AVI 0 80 4215 1020 8130 2145 0 0 0 0 BEGIN_TEXT Now you must specify values for the PlotY function panel controls. First, you must enter the Control ID, or Constant Name, of the graph control that will display the data. LabWindows/CVI has a built-in utility to display all of the Constant Names for your GUI objects, in case you forget what you named your controls. Click on the binoculars icon on the toolbar to view a list of user interface controls from the sample.uir file. ! BEGIN_TEXT ! Selecting the Graph Control ID 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_U1R.BMP ARR_U1_.BMP 69 133 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 82 4260 795 5160 1875 0 0 0 0 BEGIN_TEXT As you can see, there are only three controls on your GUI -- the ACQUIRE button, the QUIT button, and the GRAPH control. Select the PANEL_GRAPH control and click on the OK button to continue. ! BEGIN_TEXT ! Selecting the Graph Control ID 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 86 4260 795 4560 1635 0 0 0 0 BEGIN_TEXT Now you must specify which array you would like to display on the PANEL_GRAPH control. Type "wave" into the Y Array control. ! BEGIN_TEXT ! Specifying the Array to Plot 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 90 2505 3570 4980 1245 0 0 0 0 BEGIN_TEXT Type "100" as the Number of Points to plot from the "wave" array. ! BEGIN_TEXT ! Specifying the Number of Points to Plot 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 93 4590 255 8700 1560 0 0 0 0 BEGIN_TEXT The PlotY function has a number of parameters for setting the style, appearance, and color of the plot on the graph. For this example, we will use the default values. Insert the generated PlotY function call by pressing the Insert Function Call icon in the toolbar. ! BEGIN_TEXT ! Inserting the Function Call 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_L1R.BMP ARR_L1_.BMP 32 79 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 95 2265 4380 4485 2235 0 0 0 0 BEGIN_TEXT Your program is complete! When an end-user presses the Acquire Data button, your program will acquire a waveform from the scope and plot it on the graph control. Click on the Run Project icon to compile and run your program. ! BEGIN_TEXT ! Running the Completed Program 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_U1B.BMP ARR_U1_.BMP 85 253 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 97 1155 5070 4440 1395 0 0 0 0 BEGIN_TEXT Click on the Acquire Data button to acquire and plot a waveform. A sine wave appears in your graph control. ! BEGIN_TEXT ! Running the Completed Program 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 0 99 4170 3225 4320 1035 0 0 0 0 BEGIN_TEXT Click on the Quit button to end the program. ! BEGIN_TEXT ! Running the Completed Program 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE1.AVI 1 DEMCODE2.AVI 0 1530 3930 5250 5265 3165 4050 5250 3975 BEGIN_TEXT Now you will modify your program to respond to a right-click on the mouse (a RIGHT_CLICK event). Callback functions, like the AcquireData function, have a fixed prototype. Each time a keyboard or mouse event occurs on the GUI, a great deal of event information is passed into the callback function. The event parameter contains the event type, such as left-click, right-click, keypress, and so on. The eventData1 and eventData2 parameters contain event-specific information. For example, for a mouse-click event, the eventData1 parameter is the Y-coordinate of the mouse cursor and the eventData2 parameter is the X-coordinate of the cursor in pixels. For a keypress event, these parameters contain the ASCII code for the key that a user presses. For this example, you will add online Help to your program that will appear when a user right-clicks on the Acquire Data button. You must use a User Interface Library function to create a help message display. Click on the arrow to continue. ! BEGIN_TEXT ! Responding to More Events 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 8 3840 4035 4830 2640 0 0 0 0 BEGIN_TEXT We have chosen the Pop-up Panel functions that you need for this example. Pop-up Panels are quick and easy ways to display common dialog boxes or user interface objects -- and they are already built for you. The Message Popup function displays a user-specified string in a pop-up dialog box. Click on the Message Popup function and click on the Select button to display its function panel. ! BEGIN_TEXT ! Pop-up Panels... 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 12 2775 285 4800 1860 0 0 0 0 BEGIN_TEXT Now you can specify a message to display as online help for the Acquire Data button in the function panel controls. Click on the arrow to continue. ! BEGIN_TEXT ! The MessagePopup Function 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ -1 0 0 0 0 3 3 -1 3 0 0 DEMCODE2.AVI 0 15 2775 285 4800 2280 0 0 0 0 BEGIN_TEXT We have entered a sample message "Acquires and displays a waveform from the simulated scope instrument driver" in the Message control. To test the operation of this function, pull down on the Code menu and select Run Function Panel to execute the MessagePopup function. ! BEGIN_TEXT ! The MessagePopup Function 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_D1B.BMP ARR_D1_.BMP 353 187 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 19 4530 300 5460 1665 0 0 0 0 BEGIN_TEXT This is the message that displays when a user right-clicks on the Acquire Data button in your program. Click on the OK button to continue. ! BEGIN_TEXT ! The MessagePopup Function 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 21 3090 300 5400 1395 0 0 0 0 BEGIN_TEXT To insert the MessagePopup function call into your program source code, pull down on the Code menu and select Insert Function Call. ! BEGIN_TEXT ! Inserting the Popup Function 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 25 1995 480 5445 1290 0 0 0 0 BEGIN_TEXT Click on the Run Project icon to compile and run your modified program. ! BEGIN_TEXT ! Running the Modified Program 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 ARR_U1R.BMP ARR_U1_.BMP 63 253 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 27 4380 405 5535 1815 0 0 0 0 BEGIN_TEXT Now your program has built-in online help for the Acquire Data button. Right-click on the Acquire Data button to display the help message. ! BEGIN_TEXT ! Responding to a Right-Click 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 29 4800 1275 5085 1110 0 0 0 0 BEGIN_TEXT Click on the OK button to continue. ! BEGIN_TEXT ! Responding to a Right-Click 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 31 4380 405 5790 1785 0 0 0 0 BEGIN_TEXT As before, your program acquires and displays a sine wave when you left-click, which is a commit event, on the Acquire Data button. Click on the Acquire Data button to acquire and display a waveform. ! BEGIN_TEXT ! Responding to a Left-Click 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 0 33 4380 405 8565 2505 0 0 0 0 BEGIN_TEXT Congratulations! You have successfully developed an event-driven program with LabWindows/CVI. Your program has an intuitive user interface with online help for the users. And, with the help of an instrument driver, you quickly and easily acquired and displayed a waveform. Continue with other modules of the Demo Program to learn more about the development tools in LabWindows/CVI. Click on the Quit button to end this part of the demonstration and return to the main menu of the Demo Program. ! BEGIN_TEXT ! Tutorial Conclusion 0 0 0 0 255 255 255 255 0 0 0 0 0 0 255 255 255 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 8 8 ~~ ~~ 0 0 0 0 0 3 3 0 3 0 -1 DEMCODE2.AVI 1 38 230 27 229 27 230 46 230 46 60 237 60 237 556 160 556 160 216 26 216 25 221 45 221 44 543 187 543 187 249 232 248 232 425 395 424 395 172 167 238 197 441 391 441 391 69 31 69 31 78 49 78 49 68 34 68 34 82 164 82 164 233 28 231 28 234 45 233 45 97 191 552 192 553 191 553 191 -1 0 -1 0 -1 0 -1 0 72 31 71 31 78 64 78 64 -1 0 -1 0 -1 0 311 324 311 324 29 54 29 54 289 151 289 151 28 34 28 34 16 14 15 14 60 49 59 49 304 27 303 27 310 42 310 42 123 190 123 190 568 188 568 188 70 203 70 203 534 183 533 183 275 165 549 191 52 175 563 183 561 186 560 186 118 243 158 53 158 53 153 229 153 229 516 101 516 101 -1 0 -1 0 -1 0 -1 0 -1 0 -1 0 -1 0 58 54 58 54 274 46 274 46 167 47 167 47 134 275 134 275 304 28 304 28 307 46 306 46 101 200 100 200 544 189 543 188 75 191 75 191 560 190 560 189 67 220 151 256 144 239 63 34 62 34 65 51 65 51 326 266 326 266 64 34 63 33 85 164 84 164 276 51 274 51 165 49 170 45 322 261 322 261 170 47 169 46 151 270 151 270 DEMCODE1.AVI 100 0 0 641 481 DEMCODE2.AVI 34 0 0 641 481 0 1 1 188 20 271 37 0 1 2 186 18 270 34 0 1 1 187 37 271 53 0 1 2 187 37 271 53 0 1 1 30 229 139 244 0 1 2 5 228 113 244 0 1 1 501 151 609 167 0 1 2 501 151 609 167 0 1 1 187 15 269 34 0 1 2 174 14 256 34 0 1 1 192 37 402 55 0 1 2 115 34 325 52 0 1 1 511 177 598 198 0 1 2 498 176 586 196 0 1 3 10 84 565 415 0 1 4 181 187 181 187 0 1 1 395 383 484 405 0 1 2 379 383 467 405 0 1 3 111 155 209 178 0 1 4 188 184 286 208 0 1 1 390 382 482 405 0 1 2 394 378 486 402 0 1 1 41 21 81 41 0 1 2 48 20 88 40 0 1 1 42 42 284 58 0 1 2 -44 40 198 56 0 1 1 41 24 83 42 0 1 2 46 24 88 42 0 1 1 41 153 286 173 0 1 2 -41 153 203 173 0 1 1 190 16 268 37 0 1 2 191 17 269 37 0 1 1 194 34 272 54 0 1 2 193 34 271 54 0 1 1 42 185 144 200 0 1 2 500 183 602 199 0 1 1 511 177 599 200 0 1 2 508 178 596 202 0 2 0 87 W 0 2 0 65 A 0 2 0 86 V 0 2 0 69 E 0 1 1 42 25 82 42 0 1 2 50 22 90 38 0 1 1 41 59 283 77 0 1 2 -44 54 198 72 0 2 0 49 1 0 2 0 48 0 0 2 0 48 0 0 1 1 248 311 393 333 0 1 2 238 312 382 334 0 1 1 23 43 44 66 0 1 2 18 41 38 65 0 1 9 229 125 325 159 0 1 2 240 133 336 167 0 1 1 -21 16 75 50 0 1 2 -21 16 75 50 0 1 1 -33 -4 63 30 0 1 2 -34 -4 62 30 0 1 1 51 45 74 66 0 1 2 46 38 70 58 0 1 1 272 20 321 37 0 1 2 278 18 326 34 0 1 1 285 33 333 49 0 1 2 285 33 333 49 0 1 1 98 181 146 197 0 1 2 98 181 146 197 0 1 1 543 179 591 195 0 1 2 543 179 591 195 0 1 1 45 194 93 210 0 1 2 45 194 93 210 0 1 1 509 174 557 190 0 1 2 508 174 556 190 0 1 1 250 156 298 172 0 1 2 524 182 572 198 0 1 1 27 166 75 182 0 1 2 538 174 586 190 0 1 1 536 177 584 193 0 1 2 535 177 583 193 0 1 0 93 234 141 250 0 1 1 149 44 169 64 0 1 2 147 42 167 62 0 1 1 75 224 236 239 0 1 2 72 220 232 236 0 1 1 481 88 568 110 0 1 2 471 89 559 111 0 2 0 87 W 0 2 0 65 A 0 2 0 86 V 0 2 0 69 E 0 2 0 49 1 0 2 0 48 0 0 2 0 48 0 0 1 1 53 45 72 63 0 1 2 47 44 67 62 0 1 1 263 36 283 54 0 1 2 263 36 283 54 0 1 1 110 36 197 55 0 1 2 122 36 210 56 0 1 1 120 262 156 282 0 1 2 115 264 151 284 0 1 1 269 19 323 39 0 1 2 276 17 330 37 0 1 1 279 35 333 55 0 1 2 278 35 332 55 0 1 1 73 189 127 209 0 1 2 72 189 126 209 0 1 1 510 178 600 200 0 1 2 497 176 587 198 0 1 1 44 184 242 203 0 1 2 -25 180 173 200 0 1 1 511 178 599 199 0 1 2 515 178 603 198 0 1 0 22 209 110 229 0 1 0 106 245 194 265 0 1 0 99 228 187 248 0 1 1 43 25 81 44 0 1 2 42 23 80 43 0 1 1 40 41 284 61 0 1 2 -58 40 186 60 0 1 1 276 253 366 274 0 1 2 280 255 370 275 0 1 1 41 23 79 43 0 1 2 43 22 81 42 0 1 1 41 154 282 172 0 1 2 -37 154 203 172 0 1 1 266 36 289 59 0 1 2 261 38 285 62 0 1 3 109 34 196 57 0 1 4 125 32 213 56 0 1 1 277 248 365 272 0 1 2 277 248 365 272 0 1 1 110 34 197 58 0 1 2 124 33 212 57 0 1 1 119 261 158 285 0 1 2 130 257 170 281 -1 1 SYSTEM 10 0 0 0 0