Creates a new JSON object and returns a pointer to it.
JSON is a lightweight data exchange format. It is described
at http://json.org. It is based on the
Javascript language.
The JSON Objects used in Seminar Pro contain a collection of
key-value pairs.
(The internal JSON
object is of Xojo type JSONItem [classic
Xojo framework])
Once a JSON object exists, one can add or read child values
with JsonSetValue or JsonGetValue.
Parameters:
|
Name |
Type |
Description |
|
jsnString |
String |
A
valid JSON String in curly brackets, with key/value pairs, separated by
commas. Example JSON String: {"subject":"title","content":"bodytext","recipientemail":"support@seminar.pro"} Hint: Use double-quotes inside a
string definition, in order to avoid a runtime-exception. See example below |
Returns:
|
Type |
Value |
Description |
|
Integer |
Handle
to JSON object |
Returns
a pointer to the created JSON object, of type Integer Returns
0 or higher, if JSON object successfully has been created If -1
is returned, then the creation failed If -2
is returned, then a runtime exception occured |
Available in:
|
WindowMain |
WindowLink |
|
YES |
YES |
Hint: You can
find references to XojoScripts which make use of this function by sending the
following SQL statement to the database:
Select id,GUID, ScriptName,ScriptCode from
im_scripts where ScriptCode Like '%JsonCreateFromString%'
Example XojoScript:
// Using double-quotes inside of string, to escape exception
Dim
js As String
= _
"{""subject"":""title"",""content"":""bodytext"",""recipientemail"":""support@seminar.pro""}"
// Create new JSON Object from JSON string js
Dim
handle As Integer
= JsonCreatefromString(js)
// Retrieve email address from JSON object
If
handle >= 0 Then
Dim email As String
email = JsonGetValue(handle,"recipientemail")
MsgBox("Email : " + email)
End
If