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Ayuda / WLanguage / Funciones WLanguage / Funciones estándar / Funciones de geolocalización
  • Managing locks
  • Browsers allowing the geolocation
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WINDEV Mobile
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Otros
Procedimientos almacenados
Retrieves information about the current device position.
Ejemplo
MyLocation is geoPosition
MyLocation = GPSGetPosition()
// Checks the position validity with ErrorOccurred
IF ErrorOccurred THEN RETURN
Info("Latitude: " + MaPosition.Latitude)  
Info("Longitude: " + MaPosition.Longitude)
WEBDEV - Código Navegador
// Geolocation from WEBDEV, a browser procedure is called.
// Process performed from a button whose action is "none"
GPSGetPosition(BrowserProc, 200)
// "BrowserProc" browser procedure
PROCEDURE BrowserProc(MyLocation is geoPosition, nMyError is int)
SWITCH nMyError
	CASE gpsErrorOK
		// No error was detected
		PAGE_Page1.SAI_SansNom1 = MyPosition.Altitude + " " + MyPosition.Longitude
	CASE gpsErrorRights
		PAGE_Page1.SAI_SansNom1 = "The browser does not have the rights " + ...
				"to use the geolocation (or non-HTTPS site)."
	CASE gpsErrorPosition
		PAGE_Page1.EDT_NoName1 = "Unable to define the position " + ...
				"(internal error of provider for example)."
	CASE gpsErrorTimeout
		PAGE_Page1.EDT_NoName1 =  ...
			"The location could not be retrieved within the timeout."
	OTHER CASE
		PAGE_Page1.EDT_NoName1 = "Undefined error"
END
Sintaxis
WEBDEV - Código Navegador

Retrieving the information in browser code Ocultar los detalles

GPSGetPosition([<WLanguage procedure> [, <Timeout>]])
<WLanguage procedure>: Procedure name
Name of the WLanguage procedure in browser code ("callback") called when the location is retrieved.
This procedure has the following format:
PROCEDURE <Procedure name>(<Position>,<Error>)
where:
  • <Error> is an Integer constant corresponding to the error code and that can take the following values:
    gpsErrorOKNo error was detected.
    gpsErrorPositionUnable to determine the location (e.g., access provider internal error).
    gpsErrorRights
    • The browser has no sufficient rights to use geolocation.
    • The browser is recent and the site is not using the HTTPS secure protocol.
    gpsErrorTimeoutThe location could not be retrieved within the timeout.
<Timeout>: Optional integer or optional Duration
Maximum timeout (in hundredths of a second) for updating the device position.
  • If this timeout ends before the device position is updated, gpsErrorTimeOut is returned in the <Error> parameter of the WLanguage procedure.
  • If this parameter is not specified, the timeout is set to 1 minute.
Note: This parameter can correspond to:
  • an integer corresponding to the number of hundredths of a second,
  • a Duration variable,
  • the duration in a readable format (e.g., 1 s or 10 ms).
Observaciones

Managing locks

GPSGetPosition blocks execution until the current device location is retrieved or until the timeout defined by the <Timeout> parameter expires.
If the function is called in the main thread of the application, an hourglass will be displayed during the function execution. The message displayed by the hourglass can be specified via the <Message> parameter.
Otherwise, the execution of secondary thread will be locked during the function execution and no hourglass will be displayed.
WEBDEV - Código Navegador This function is not locking.
Note: To find out the last known position of the device without delay, use the GPSLastPosition function.. Caution, the positioning information that was retrieved may not correspond to the current device position if the device was moved while the GPS signal was not valid for example. You can use the MeasurementDate property of the geoPosition variable to determine the date and time at which the position was calculated.
WEBDEV - Código Navegador

Browsers allowing the geolocation

During the call to a geolocation function, the browser requests a location authorization.Note: As of Chrome 50 (including Android), the function GPSGetPosition function can only be used on secure sites (via an SSL certificate, for example). If the site is not secured, the function returns a result that cannot be used. During the test in local (localhost), the function operates properly.
Clasificación Lógica de negocio / UI: Lógica de negocio
Componente: wd300java.dll
Versión mínima requerida
  • Versión 15
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Comentarios
Exemplo
https://forum.pcsoft.fr/fr-FR/pcsoft.br.windev/3701-trabalhando-com-gps/read.awp
Boller
13 03 2021
Video GpsGetPosition
https://youtu.be/4MqAx_qiFts

https://windevdesenvolvimento.blogspot.com/2019/01/dicas-1987-windev-mobile-dicas-14.html
amarildo
16 01 2019
GPS Functions
https://forum.pcsoft.fr/fr-FR/pcsoft.br.windev/519-busca-endereco-rota-endereco-das-coordendas-523/read.awp?hl=enderecodascoordenadas

https://forum.pcsoft.fr/fr-FR/pcsoft.br.windev/2875-informatica-exemplo-google-maps-com-json-retornando-distancia/read.awp?lastview
BOLLER
10 11 2018
Video Trajeto Mapa
https://youtu.be/bSk0ysOlacE
amarildo
03 11 2018

Última modificación: 27/03/2025

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