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vrf Need help on .net framework

Question asked by VRFuser on May 21, 2008

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> Ah now I see that he's creating
> the buttons programmatically, so
> I'm not sure how it would work in
> that case.

Yep. It's not difficult to do things like this with VB.NET or C#, but in those cases you use New to instantiate a Delegate object & have it respond to the control's events. The C# case should work out pretty much the same using CreateInstance in VEE, but I can't find the right way to make it work.

FCL people?
-SHAWN-

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VRFuser May 20, 2008 8:08 PM
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Thanks for the clarification Vlad. It helps to understand the situation. It’s a shame to lose some of the functionality.

Cheers

Nick

_____

From: Losik, Vlad [mailto:losikv@tycoelectronics.com]
Sent: 20 May 2008 15:46
To: VRF
Subject: RE: [vrf] Matlab 2007a figure viewer menu items

I raised this question before and got reply from Agilent.

In a nutshell it goes like this:

Prior to Vee8.5 the matlab engine was "matlab run time server"

In latest matlab release this was replaced by matlab compiler generated binary libraries.

So it includes only the future Mathworks decided to make available (in that case not all menu options on graph figure are made available in binaries.)

Among other things it means that you can no longer extend matlab engine by compiling your own functions in p-code.

This was decided by MathWorks and has nothing to do with Agilent so nothing can be done about it.

Hope this helps

Vlad

_____

From: Nick Evans [mailto:nick@evanstest.co.uk]
Sent: Tuesday, May 20, 2008 10:09 AM
To: VRF
Subject: [vrf] Matlab 2007a figure viewer menu items

Hi All

I am using agilent vee pro 8.5. I just had occasion to revisit some old code developed in vee 8.0 that uses Matlab graphing. I notice now that when the graph pops up in Matlab (2007a) the matlab menu bar is now severely depopulated.

With the version of Matlab script shipped with vee 8.0, the figure menu bar includes items for “File”, “Edit”, “Tools”, “Window”, “Help”. The new version of Matlab only shows “File” and even that menu item has been depopulated of items (no page setup now for example).

Has anyone else noticed this? More importantly, how can I get the default menu items from the previous version of matlab back? The old Matlab window had nice built in functions to allow the user to annotate the graph, etc.

Interestingly if you look at the documentation for Matlab 2007a it at least implies that there should be a lot of menu items present (based on screen shots). Is vee restricting the menu items being shown in some way?

Thanks and regards

Nick

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VRFuser May 21, 2008 2:23 AM
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Hi Shawn,

Thanks for the help. I have read thru the code that you attached. I saw that you have declared item0 to item4. Is there a way where we do not need to declare as the buttons that I have in mind is a variable? Or there is another way around this.

Thank you.

-----Original Message-----
From: Shawn Fessenden [mailto:shawn@vrfarchive.com]
Sent: Wednesday, May 21, 2008 5:22 PM
To: PDL-LISTS,VRF (A-Lists,unix1)
Subject: RE: [vrf] Need help on .net framework

> My problem is how I can assign
> controls to the buttons that I
> have just created.

The way I usually do it is to assign the Button a surrogate object and use that for the function.

I think the way this is supposed to be done is assign an EventHandler delegate to the Buttons as they're created , but I don't know how to do that with VEE.

Anybody know how to do Delegates in VEE?
-SHAWN-

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VRFuser May 21, 2008 2:47 AM
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Hi Shawn,

Thanks for the help. I have read thru the code that you attached. I saw that you have declared item0 to item4. Is there a way where we do not need to declare as the buttons that I have in mind is a variable? Or there is another way around this.

Thank you.

-----Original Message-----
From: Shawn Fessenden [mailto:shawn@vrfarchive.com]
Sent: Wednesday, May 21, 2008 5:22 PM
To: PDL-LISTS,VRF (A-Lists,unix1)
Subject: RE: [vrf] Need help on .net framework

> My problem is how I can assign
> controls to the buttons that I
> have just created.

The way I usually do it is to assign the Button a surrogate object and use that for the function.

I think the way this is supposed to be done is assign an EventHandler delegate to the Buttons as they're created , but I don't know how to do that with VEE.

Anybody know how to do Delegates in VEE?
-SHAWN-

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VRFuser May 21, 2008 3:01 AM
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> Is there a way where we do not need
> to declare as the buttons that I have
> in mind is a variable?

That's what the Delegate is supposed to be for. You create an EventHandler Delegate for each button and assign it to the buttons as they're created. When the button is clicked, the click Delegate is called back instead of the button's OnClick event handler.

The problem is you need an address to assign a Delegate and there's no way to get that from VEE or the Delegate object itself.

If somebody else knows how to do Delegates in VEE please post!
-SHAWN-
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VRFuser May 21, 2008 3:38 AM
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I've just been going over all this again, and I still don't see a way to get it done. From a C point of view it's all very straight forward and simple to understand. As soon as you involve an oo framework, it gets all weird and mystical. Maybe what's needed is a new framework that simply assumes you need to do something useful without chewing up twice as many resources as necessary.

The old VB control array handled this case very well. There's got to be some way to do this intelligently. Panel.Controls needs to be able to short circuit it's members events and map them elsewhere. THAT would be simple.
-SHAWN-
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VRFuser May 21, 2008 6:16 AM
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If you right-click on the control, you have a menu choice of Create Event Handler. This is a function that is called when the selected event occurs.

Reiner

_____________________________________________
From: Shawn Fessenden [mailto:shawn@vrfarchive.com]
Sent:   Wednesday, May 21, 2008 6:01 AM
To:     VRF
Subject:        RE: [vrf] Need help on .net framework

> Is there a way where we do not need
> to declare as the buttons that I have
> in mind is a variable?

That's what the Delegate is supposed to be for. You create an EventHandler Delegate for each button and assign it to the buttons as they're created. When the button is clicked, the click Delegate is called back instead of the button's OnClick event handler.

The problem is you need an address to assign a Delegate and there's no way to get that from VEE or the Delegate object itself.

If somebody else knows how to do Delegates in VEE please post!
-SHAWN-
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VRFuser May 21, 2008 6:21 AM
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Ah now I see that he's creating the buttons programmatically, so I'm not sure how it would work in that case. If you open the example button.vee under dotNET, you can right click on the control and create an event handler for it.

Sorry I can't be of more help...

Reiner

_____________________________________________
From: Shawn Fessenden [mailto:shawn@vrfarchive.com]
Sent:   Wednesday, May 21, 2008 6:38 AM
To:     VRF
Subject:        RE: [vrf] Need help on .net framework

I've just been going over all this again, and I still don't see a way to get it done. From a C point of view it's all very straight forward and simple to understand. As soon as you involve an oo framework, it gets all weird and mystical. Maybe what's needed is a new framework that simply assumes you need to do something useful without chewing up twice as many resources as necessary.

The old VB control array handled this case very well. There's got to be some way to do this intelligently. Panel.Controls needs to be able to short circuit it's members events and map them elsewhere. THAT would be simple.

-SHAWN-
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vrf Need help on .net framework

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