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• Event Structure... the mouse down or to the cases of change of value

  I feel, it is a simple problem, but I can't seem to find a solution.

  I have a VI that is supposed to communicate with a stepper motor drive.  I'm working on the Boolean setting keys on the Panel before (acting as of the momentary switches) that will jog the hourly engine or counterclockwise, as long as the button is pressed.  Once the user releases the button, the motor should stop jogging.

  I tried to use the mouse down and value change event.  With the help of the mouse down, for some reason, the time-out occurs almost immediately even while holding the mouse on the button.  This translates into what seems like nothing is happening.  Although the engine receives all orders he has to run, it receives the stop command immediately after.

  Using the value change case, the procedure works and the motor turns, but when you release the button (another change of value), all orders of jog are returned to the engine stop control tracking.  Sometimes the motor continues to run after the shutdown command has been sent, and I think that might be involved because it receives all the shortening of orders (again) and the judgment of control both.

  Is it possible to cnage my case event to run the way I want to what he... Send commands to the button click on... Send different command button.

  Thank you.

  Thanks for the suggestion...

  I could solve the problem I had.  Previously, I was trying to display the timeout to-1 to a value greater than 0 to launch the timeout on a button release event.  To solve the problem, I just removed all of the code that has been changing the value of timeout and left the default to-1.  I also removed all the code in the case of timeout.  Then, I created a new mouse event that is fired by releasing one of the buttons and copied in the code that used to be in the case of timeout.

  Now, the works of VI exactly as I need to... where an event occurs on a mouse a click of a button and a different event happes when the button is released.

  A very simple solution, however I've only worked in BT for about a week and I have not seen the mouse event when I scroll to the event.

• Cases of event structure do not work (probably façade is disabled

  Please find the attached VI, I tried the update feature and inlcude a new code. And it ends in a non-responsive event structure.

  Is this a bug (related to the definition of property of "Windows run in a transparent manner") or am I missing something...?

  You have your events to lock the front until full.  If you have a keydown event, the structure of the event 2nd he also captures and locks the front panel.  You might think that you have a timeout, but this loop does not receive the value of timeout until the first so that the loop ends.  Your second loop depends on the completion of the first loop.

  If you do not hit the combination just with a keydown event (or leave of mouse or mouse enter and other events that would lock the front) which causes also this first loop to stop.  You have locked your program.

  As Mike said, have 2 structures of event on a diagram when you do not understand how to work the event structures.

  I recommend reading warnings and recommendations when using events in LabVIEW.    This document has a little more items that I think should be mentioned.  But it's a good start.

• Mouse events routing through a Sprite in ActionScript 3

  In a pure ActionScript 3 project, I have a sprite that overlaps another sprite. The lower sprite normally manages mouse clicks. The lower sprite processes more mouse events when it is covered by the higher sprite.

  I understand that it is a normal behavior.

  I wish that the sprite lower to handle mouse events when it overlaps. (In my case, the higher sprite is just a decorative piece; anyway, there is no interactivity normal mouse). Is this possible? Is it possible to drive through the higher sprite mouse events?

  I found a short, the date of the debate on my problem here:

  http://kb2.Adobe.com/CPS/137/tn_13766.html

  Thank you.

  Hi JohannesBlythe,

  I think you can use 'mouseChildren = false' for this fake sprite.

  Or you can try changing the fake sprite graphics.

  -Varun

• How to merge the event structures?

  I have a program of VI script that reads a text file of records and displays a structure of the event.  It works very well because it creates all the controls and indicators I need associated with the defined registry and code backend (i.e. the structure of the event).

  After I generated all this code, I copy and paste in the main VI I develop.  Everything works very well.  The only problem is that there are 100 text files from separate registry.  This means that I end up with 100 separate event structures.  Although it works, it takes a lot of space and I prefer to combine them.  However, each event structure has anywhere from 15 to 75 entries, so to do this manually is not an option.

  Is it possible to selectively merge the event automatically structures?

  I guess I could write a labview scripting routine that could get a reference to the structure of the event in VI, then merge... but part of the problem there is that there are a handful of structures of event I want to separate them just because they are not associated with the set of registers, that I mentioned.

  
  

• Reading of RS232 event structure

  Hello

  I use the Write.vi to read RS232 attached as a starting point and do RS232 - help.vi him. successfully, the original written 1 posts, then wait a little, then reads 1 message. What I'm trying to do is to be able to read several messages. So I would write 1 message and I would read 1, 2 or 3 messages back or however many messages to ever come back, I guess that.

  Here is how I modified the original vi to get where I am now:

  I tried to add a structure of the event around half 'read' RS232 program. My structure of event triggers when the bytes to read the changes, this value can range from 0 to several bytes to be read, or muliple bytes to read 0. Up to half of the time I would trigger and not need, so I then added the accession of case which only works when the bytes to read the value is not 0, which means that it must be something waiting to be read whenever the program inserts this box. (I hope that's clear).

  At the moment, my program will not read and I don't know why. Through the program of first base, I can read and write properly. (I just hooked pins 2 and 3 on my cable so I read everything I write for testing purposes). So I know that the problem is spoil me the 2nd joint program

  Any help would be appreciated! Thank you.

  EDIT: I added 2 .jpgs incase you are on an different labview version.

  Better.

  But I don't think that permutation of the structure of the event for the structure of the case actually has really helped what.  In fact he madet worse.  You had the case of locking Panel event before the value until the end of the event.  But with the structure of the event within the structure of the case, there is a chance that the structure of the event will never run and therefore the façade will be locked up forever.

  1. you want to only 1 VISA close.

  2. event structure has been set.  I also added an event for writing switch is restored.  So now, it'll write if you change the channel or when you turn the switch to True.  (Note, you will not be able to always send the same string as in the original example because you must press the power button or change the channel.

  3. I used the structure of the event to stop the loop of both Scripture by trigger on the event that the button is pressed.

  4. I don't know what you mean by a «black» read

• Event structure/state machine

  Here's the scenario.

  I use the buttons controlled by the user in an event structure to control a state machine. Currently, I have a different State for each button. However, 4 or 5 of these buttons could ideally correspond to the State, which is what I would like to get... Each of these 4 or 5 buttons causes flow data and the results are stored in a table, but listened data are different for each button! Therefore, if each of those 4 or 5 buttons caused the same condition occur how I could decipher what button was pushed? Ideally, I would have 4 or 5 different paintings once all the buttons are out of the same State.

  Is there anyway that I can achieve this?

  Hi the shots.

  you have access to the refnum of the element inside the event. With the Ref, you can simply get the name or any other property of the control to distinguish them.

  Mike

• Structure of the event in the event structure

  Is it possible that I can have a structure of the event, which is in another structure of the event? When I run the code, I can't use other buttons. (See chart for details)

  

  Do not put the event structures in the structures of the event! There is never any reason to do so.

  Redefine architecture your code in a correct state machine.

  (By default, events lock the façade until the event ends and if you raise the event internal or external, first of all, the other event can never fire because the current event can never accomplish or is inaccessible by data stream.)

• Output of the application using the event structures

  Hello

  In my project I used event structure that works well.

  Now I want to exit (close) demand when I press the EXIT button on the front.

  Here, I joined my project as an indication.

  Concerning

  Hari

  Hi thinnker,

  You must change the configuration of node Sub VI for this... This, then it will open whenever you call...

  

  

• Which situations give an event structure do not capture a Boolean value changes?

  LabVIEW 9 x 86

  Windows 7 x 64

  I have an event structure that works very well.  It has 5 cases, each triggered by a change in value of various indicators.

  I added another case of event, I'm trying to raise the case of the event with the express control "Out of time", I made a deal to raise when the Boolean value "out of time".  The structure of the event does not run when the value changes.

  In addition, once figured out how to make this indicator to trigger structure of the event, I would like to only trigger when the value goes from 0 to 1 and not from 1 to 0

  Search the forums for "event to change value" and "value traffic".

  The value (I guess you have on the structure of your event, bar header you seems to miss information.) the change is triggered only when the user enters new data in a control, or you write a new value programmatically by using the Value property node (signaling).  Completed just by a program written for a local variable, or do not ' value' property node.

  To trigger that in a sense, you can put the code in the event of a case within a case structure so that it runs only when it it True (or False, if that's what it takes.)

• Two loops of event Structure: hang

  Hello

  I have a wired problem when I try to use two loops with two event structures (see VI below).

  The problem is that you can stop the measurement and close the VI with X but not to stop it only with STOP button: this would lock the façade.

  Here my (rather long and perhaps not quite understandable) description of VI:

  A structure must respond on the user interface and the other a certain action. The first uses only user events: change value button START, PANEL NARROW? and the value enum STATE changes. The second event structure uses those registered dynamically: start the event user & user close event. Action when the STATE changes from button should always be done. When you press start the startup user event disables the START button and activates a loop in the second structure that should make continuous measurement. Now, we can always change the STATUS button and information (this works). The measurement loop should stop if the STOP button is true. Later START is enabled again and we should be able to press START again. It does not work as the front panel is locked. Curiously the last implemented user action works very well: by pressing X of VI, the PANEL CLOSE? is called in the first loop and should stop the two loops: If the measurement loop is running, STOP is True first, stop the loop measurement. Then a secondary structure event waits until the JUDGMENT is again set to False. If the measure is not in the process of running the first loop stops. In both cases, the event close user is sent to the second loop, successfully stop.

  I'm really confused, because I have no idea what is wrong. I would greatly appreciate any help on this.

  Best regards

  Daniel

  Thank you very much! This solves the problem. I did not understand that structures of events queued events even if they are not "active".

  (Finally there is even no need one notifier, you can just change the value of the real STOP button and will raise the event close user, comapare attached, work VI)

  Thanks again,

  Daniel

• The quit event structure works when I switch the cdaq to crio

  I changed my structure of producer of written consumer 2009 for use crio in 2010 and my event structure enough work. The event source is the same.

  

  Panel controls raise no events on targets in real time as the cRIO, as these systems have not really accessible facades by the user.  When they do not display a façade, it runs on the separate development of the cRIO system; LabVIEW just give a homogeneous appearance.

• Event Structure Weirdness

  Last night, SAP posted an interesting question on his blog (The Daily CLAD).

  In short, we create a dynamic event, enter it and generate two events with the data being 1 and 2.  Then we travel a structure of the event that is registered for the dynamic event.  Inside of the event is another structure of event which is also on the dynamic event inside a loop set FOR to run twice.  The data of the event was autoindexed and went straight to the final output.  Now logic would state that the output should be {1,2}.  But when I run it, I get {1,1}.  I thought it was really strange.  So of course, I got to play.

  I changed the buckle FOR to run 3 times.  Oh, it is here and waiting for another event.  If it is to see two events, as it should be.  It's just that for the second event data is not transmitted correctly.

  But let's play others.  I put another LOOP around the external event structure and did run twice.  He does not see the second event at all (that is to say, is there and waiting for another event on the second iteration).  Why not?  It is registered for it?  He saw the first event?  Why wouldn't it the second event in its queue?

  Now if I remove the inside OF the loop and let my loop FOR external, everything works perfectly as I expect.

  Now, it becomes even more strange.  I added a button and changing the value for the button of my external event structure (the two structures event with loops to go twice).  The structure of the external event is also ignorant of my button value change event.

  OR, what the #* $& @* is happening here?

  The problem is not with nested structures event, but with the shared record refnum. An event record refnum should belong only to a single event structure. As soon as share you, you get undefined behavior. It could work very well, he might behave in a totally random way.

  Example of David is wrong for the same reason. He may have worked when he ran, but it is not something that must be invoked. The structure of substantive event should have a separate record node.

• While loops and event structures

  Is there a problem using more then one While loop with an internal structure of the event, in a single VI?

  In my (only a partially attached printscreen) VI there is more then 2 all in curls with a structure internal even who controls a different devices.

  Event structures are being controlled by a box structure.

  From time to time the VI gets stuck and resetting local variables.

  

  Hello

  Using two while the loop is not a problem, it depends on how you structure the code.

  Generally, we use two while loop for Producure-consumer, master - slave structure type of applications. Try to use the structure of State machine inside while loops, see standard state machine examples in the palette of NOR find example.

• the exact position of the mouse click xy graph while he plotted graph with mouse events

  Hello

  IAM using Graph xy for multi locations

  IAM traced graphic with mouse movement and events using the example attached (draw the graph with mouse events)

  but in sub vi Values.vi scale there are two constants 66 and 30 when I change my plot (I also change the scales), then the mouse position and chart position (cursor) value are not well aligned, but when I change the constants mentioned above I get the alignment perfect between the cursor and the last point in the path.

  as I went to another parcel (with scalability again) the same alignment problem resurfaced.

  I need to replace these two constants with something dynamic

  Please help

  

  concerning

  Mazhar

  solution to my problem is