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- 4D Language Reference
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- Web Area
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Programmed management of Web Areas
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WA Back URL available
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WA Create URL history menu
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WA Evaluate JavaScript
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WA EXECUTE JAVASCRIPT FUNCTION
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WA Forward URL available
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WA Get current URL
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WA GET EXTERNAL LINKS FILTERS
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WA Get last filtered URL
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WA GET LAST URL ERROR
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WA Get page content
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WA Get page title
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WA GET PREFERENCE
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WA GET URL FILTERS
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WA GET URL HISTORY
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WA OPEN BACK URL
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WA OPEN FORWARD URL
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WA OPEN URL
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WA OPEN WEB INSPECTOR
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WA REFRESH CURRENT URL
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WA Run offscreen area
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WA SET EXTERNAL LINKS FILTERS
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WA SET PAGE CONTENT
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WA SET PREFERENCE
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WA SET URL FILTERS
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WA STOP LOADING URL
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WA ZOOM IN
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WA ZOOM OUT
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WA Back URL available
| WA Back URL available ( {* ;} object ) -> Function result | ||||||||
| Parameter | Type | Description | ||||||
| * | Operator |
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If specified, object is an object name (string) If omitted, object is a variable | |||||
| object | Form object |
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Object name (if * is specified) or Variable (if * is omitted) | |||||
| Function result | Boolean |
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True if there is a previous URL in the sequence of URLs opened;otherwise, False | |||||
The WA Back URL available command finds out whether there is a previous URL available in the sequence of URLs opened in the Web area designated by the * and object parameters.
The command returns True if a URL exists and False otherwise. More particularly, this command can be used, in a custom interface, to enable or disable navigation buttons.
Product: 4D
Theme: Web Area
Number:
1026
Created: 4D v11 SQL Release 2
4D Language Reference ( 4D v20 R7)
