IDL Wavelet Toolkit User's Guide

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64 Chapter 4: IDL Wavelet Toolkit ReferenceKeywords to WIDGET_CONTROL and WIDGET_INFOThe widget ID returned by most compound widgets is actually the ID of thecompound widget’s base widget. This means that many keywords to theWIDGET_CONTROL and WIDGET_INFO routines that affect or return informationon base widgets can be used with compound widgets.In addition, you can use the GET_VALUE and SET_VALUE keywords toWIDGET_CONTROL to obtain or set the value of the wavelet. Use the command:WIDGET_CONTROL, id, GET_VALUE=valueto read the current wavelet. To change the current wavelet, use the command:WIDGET_CONTROL, id, SET_VALUE=valueIn both cases value is an anonymous structure, {FAMILY: '', ORDER: 0}, whereFAMILY is a string containing the name (for example ‘Daubechies’), and ORDER isa variable giving the order number. Depending on the family, ORDER can be of typeInteger or Double.See “Creating a Compound Widget” (Chapter 2, User Interface Programming) for amore complete discussion of controlling compound widgets usingWIDGET_CONTROL and WIDGET_INFO.Widget Events Returned by the WV_CW_WAVELETWidgetThis widget generates event structures each time the family or order is changed. Theevent structure has the following definition:Event = { ID:0L, TOP:0L, HANDLER:0L, FAMILY:'', ORDER:0}The ID field is the widget ID of the WV_CW_WAVELET widget. The TOP field isthe widget ID of the top-level widget. HANDLER is the widget ID of the widgethandler. The FAMILY field contains the family name. The ORDER field containsthe order number, and can be an Integer or a Double depending on the family.Version History5.3 IntroducedWV_CW_WAVELETIDL Wavelet Toolkit
Chapter 4: IDL Wavelet Toolkit Reference 65See AlsoWV_FN_COIFLET, WV_FN_DAUBECHIES, WV_FN_GAUSSIAN,WV_FN_HAAR, WV_FN_MORLET, WV_FN_PAUL, WV_FN_SYMLETIDL Wavelet ToolkitWV_CW_WAVELET
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IDL WaveletToolkit User’sGuideIDL
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ContentsChapter 1Introduction to th
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Chapter 1Introduction to the IDLWav
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Chapter 1: Introduction to the IDL
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Chapter 1: Introduction to the IDL
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Chapter 2Using the IDL WaveletToolk
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IDL Wavelet Toolkit User's Guide

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