ThumbViewer.CompareThumbs - Revision history

Admin: 3 revisions imported

2015-08-07T15:25:16Z

3 revisions imported

Admin at 19:54, 19 May 2013

2013-05-19T19:54:17Z

Admin: 1 revision

2013-05-19T19:53:12Z

1 revision

RB WikiCreator at 19:53, 19 May 2013

2013-05-19T19:53:12Z

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{{EventBox
| name=CompareThumbs
| owner=[[ThumbViewer]]
| ownertype=class
| parameters=Thumb1 As ThumbNail, Thumb2 As ThumbNail, ByRef Result As Integer
| returntype=Boolean
| platform=all
| newinversion=
| version=0.9.0
}}

The CompareRows event is used for sorting ThumbNails in a manner that is not provided by the default mechanism.
The result of the comparison is returned in the last parameter, Result, which is declared Byref.
The default mechanism sorts Thumb names lexicographically.
If you implement the event, it gets called during a ThumbViewer sort.

Parameters:

*Thumb1: First thumb being compared.
*Thumb2: Second thumb being compared.

Set Result to:

*0: If Thumb1 and Thumb2 are equal.
*-1: Contents of Thumb1 < Contents of Thumb2.
*1: Contents of Thumb1 > Contents of Thumb2.
Return True if the returned Result parameter is accurate for sorting.

Return False if you want the ThumbViewer to use the default lexicographic sorting of the Thumbs.

← Older revision		Revision as of 19:54, 19 May 2013
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	Return False if you want the ThumbViewer to use the default lexicographic sorting of the Thumbs.		Return False if you want the ThumbViewer to use the default lexicographic sorting of the Thumbs.
		+
		+	===Example===
		+	The following code in the CompareThumbs event will compare the ThumbNails according to the value of their respective Tag property.
		+	<source lang="realbasic">
		+	If Thumb1.Tag.DoubleValue > Thumb2.Tag.DoubleValue then
		+	Result = 1
		+	elseif Thumb1.Tag.DoubleValue < Thumb2.Tag.DoubleValue then
		+	Result = -1
		+	else
		+	Result = 0
		+	End If
		+	Return True
		+	</source>

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