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- Properties specific to nfcData variables
- Reinitialization
The nfcData type is used to describe and handle the data of a variable of type nfcTag. You can define and change the characteristics of this data using different WLanguage properties. Note: For more details on the declaration of this type of variable and the use of WLanguage properties, see Declaring a variable.
tag is nfcTag
tag = NFCReadTag()
IF NOT ErrorOccurred = True THEN
FOR EACH data OF tag.Data
SWITCH data.Type
CASE nfcText
sLanguage is string = LanguageToName(data.Language)
sText is string = data.Content
CASE nfcURI
IF StringStartsWith(data.Content, "http") THEN
BrowserRunApp(data.Content)
END
CASE nfcMedia
IF data.MIMEType ~= "image/png" THEN
fSaveBuffer(CompleteDir(SysDirStorageCard()) + ...
"image.png", data.Content)
END
END
END
END
Propiedades Properties specific to nfcData variables The following properties can be used to handle data of an NFC tag: | | | | Property name | Type used | Effect |
|---|
| Content | Binary/Buffer | Data content. Its type depends on the value of the Type property. If the Type property corresponds to: - the nfcText constant:
 the Content property can be an Ansi or Unicode string.   the Content property is a Unicode string.
When writing the NFC tag: - if the Content property is an ANSI string, the text will be encoded in UTF-8,
- if the Content property is a Unicode string, the text will be encoded in UTF-16.
- the nfcURI constant, the Content property corresponds to an Ansi string.
- the nfcMedia constant, the Content property corresponds to a buffer.
The interpretation of the buffer data depends of MIME type associated with the nfcData variable. - the constant nfcVide: A fatal error will be triggered if an attempt is made to modify the property Contenu.
- the constant nfcInconnu: A fatal error will be triggered if an attempt is made to modify the property Contenu.
| | Language | Integer | Language of the text stored in the Content property. This property must be used only when the type of the nfcData variable is nfcText. A fatal error will occur if there is an attempt to read or modify the Language property of a variable of type nfcData or a different type. By default, the Language property is initialized with the current language of the application. To find out: | | MIMEType | Character string | MIME type of the resource stored in the Content property. The specified MIME type can correspond to: - a standard MIME type. More than 150 types are defined in the MIME communication standard (available on Internet). The most common values are:
- "application/pdf": PDF file (*.pdf)
- "text/html": HTML page (*.htm, *.html)
- "text/plain": text file (*.txt)
- "image/gif": GIF image (*.gif)
- "image/jpeg": JPEG image (*.jpg, *.jpeg)
- "video/mpeg": MPEG video (*.mpg, *.mpeg)
- "application/msword": Word file.
- "application/vnd.ms-excel": Excel file.
- a custom type.
The MIMEType property must be used only when the nfcData variable is of type nfcMedia. A fatal error will occur if there is an attempt to read or modify the MIMEType property of a variable of type nfcData or a different type. | | Type | Integer constant | Type of data, corresponding to one of the following constants: - nfcText Text data.
- nfcURI URI (Uniform Resource Identifier) data type. Can correspond to:
- the url of a Web page (http://www.windev.com),
- an FTP address (ftp://ftp.windev.com/),
- a phone number (tel:0123456789),
- an email address (mailto:address@mail.com), etc.
You have the ability to use ShellExecute with this URI (for example, to open the browser when the URI corresponds to the address of a Web site).
- nfcMedia Media type data. Can correspond to any resource identified by a MIME type (image, video, document, etc.).
- nfcVide Empty type. This type is used when creating a variable of type nfcData as long as no data type has been specified.
- nfcUnknown Type unknown.
Important note Changing the type of a variable of type nfcData variable results in a reset of its contents. Therefore, don't forget to specify the type before the content. |
Observaciones Reinitialization You can use VariableReset to reset the content of a variable of type nfcData. |
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