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R
richardn41953489
Known Participant
September 11, 2020
Question

buttonGetIcon return value

  • September 11, 2020
  • 2 replies
  • 1520 views

I have sifted thru posts, but can't find a solution ...

I want to execute a script from a button that will evaluate many image fields to determine if an image is assigned to the field.  The purpose is to clear a hidden text field of the original path of the imported icon in each. I have tried:

var isIcon = this.getField("Image17_af_image").value;

which returns "null"

var isIcon = this.getField("Image17_af_image").buttonGetIcon();

which returns [object Icon]

var isIcon = util.iconStreamFromIcon(this.getField("Image17_af_image").buttonGetIcon());

which returns [object Stream]

Is it possible to get a "Yes"/"No" response?

 

This topic has been closed for replies.

2 replies

try67
Community Expert
try67Community Expert
Community Expert
September 11, 2020

You can do it like this:

 

var buttonIcon = this.getField("Button3").buttonGetIcon();
try {
	var buttonIconStream = util.iconStreamFromIcon(buttonIcon);
	var streamLength = buttonIconStream.width*buttonIconStream.height;
	app.alert("Icon size: " + streamLength);
} catch (e) {
	app.alert("No icon found.");
}
R
richardn41953489Author
Known Participant
September 11, 2020

Thanks try67! I'll be looking at "try" functionality.  Expect it will be very useful.

Code performing as needed:

var i = 0
for (var i=16;i<=112;i++)
if(i<70 || i>71){
{
s=i+"";
}
var buttonIcon = this.getField("Image"+s+"_af_image").buttonGetIcon();
try {
var buttonIconStream = util.iconStreamFromIcon(buttonIcon);
var streamLength = buttonIconStream.width*buttonIconStream.height;
// app.alert(streamLength);
}
catch (e) {
getField("FilePost"+s).value="";
getField("Text"+s).value="";
// app.alert("No icon found.");
}
}

 

try67
Community Expert
try67Community Expert
Community Expert
September 11, 2020

You can comment out the streamLength variable, too.

The try-catch clause is used to catch run-time errors and handle them properly (instead of just existing the code immediately). The iconStreamFromIcon method throws such an error when you use it on an empty Icon object.

T
Test Screen Name
Legend
September 11, 2020

Maybe the width and height of the icon object will give interesting info. Maybe not; perhaps there is always some kind of image assigned, even if it is blank.

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