about change the size of the panel and centerlize the window

[PKIM]

Hi there,

  I have a simple subvi, it has a string indicator embeded into the panel. I have the string fit to the pane. I am going to change the size of the panel to width 240 and height 24 then centerlize the panel. I found some code in the forum. If I don't put the string there, the code works perfect. But after putting the string, it will run into error.

And I call the subvi FP.vi in a main vi (main.vi).  The error is

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Error 1 occurred at Property Node (arg 1) in FP.vi->main

Possible reasons(s):

LabVIEW:  An input parameter is invalid. For example if the input is a path, the path might contain a character not allowed by the OS such as ? or @.

Property Name: Front Panel Window:Panel Bounds

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Any suggestion why this error?

[lh845 · Accepted solution]

I don't see a reference to the FP subVI in your image.  You need to have a VI reference going into the FP.PanelBounds Property Node.

[JÞB]

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@lh845 wrote:

I don't see a reference to the FP subVI in your image.  You need to have a VI reference going into the FP.PanelBounds Property Node.

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Left unwired the property node uses "This VI" as a default value.

 

That works OK

Do you have a minimum size set in the vi properties?

[lh845]

Yes, I thought he was trying to call a subVI reference, though.

Anyway, I played around with the same VI's and I get the same error message if I try to use the same coordinates, but when I increased the bottom coordinate to a value of 26 then I don't get the error.  

[lh845]

Here is a snippet that worked for me.

.

[JÞB]

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@lh845 wrote:

Here is a snippet that worked for me.

.

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Yes there is a minimum height for string indicators you violated that

[PKIM]

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@lh845 wrote:

I don't see a reference to the FP subVI in your image.  You need to have a VI reference going into the FP.PanelBounds Property Node.

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I put everything in the subvi and I call the subvi in other code. I wonder if that subvi refer to itself automatically

[PKIM]

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@PKIM wrote:

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@lh845 wrote:

I don't see a reference to the FP subVI in your image.  You need to have a VI reference going into the FP.PanelBounds Property Node.

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I put everything in the subvi and I call the subvi in other code. I wonder if that subvi refer to itself automatically

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I just test that without the "This VI" it doesn't work. Thanks for your pointing out.

[PKIM]

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@lh845 wrote:

Yes, I thought he was trying to call a subVI reference, though.

Anyway, I played around with the same VI's and I get the same error message if I try to use the same coordinates, but when I increased the bottom coordinate to a value of 26 then I don't get the error.  

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Thanks for pointing that out. I just want to know how to figure out 26 is the minimum coordinate I should use other tha something else. Instead of hardcoding that, anywhere I can refer to so to get the minimum? Thanks.

[JÞB]

Min size is a property of many controls.  it changes.  for instance, with a silver style string control its 37 pixels high with the default font size. ( it Makes sense, that it shows 1 line of text clearly)  

By scaling to pane- the string min size is forced into the min pane size of the 1 pane panel (FP) so setting the height lower than the control could show 1 line of text clearly yielded an error. 

Or, in other words, the error explaination could have been clearer when it was first implemented.