556 Chapter 12: Methods
stringP()
Usage
stringP(expression)
Description
Function; determines whether an expression is a string (TRUE) or not (FALSE).
The P in
stringP stands for predicate.
Parameters
expression
Required. The expression to test.
Example
This statement checks whether 3 is a string:
put stringP("3")
The result is 1, which is the numeric equivalent of TRUE.
This statement checks whether the floating-point number 3.0 is a string:
put stringP(3.0)
Because 3.0 is a floating-point number and not a string, the result is 0, which is the numeric
equivalent of
FALSE.
See also
floatP(), ilk(), integerP(), objectP(), symbolP()
subPictureType()
Usage
-- Lingo syntax
dvdObjRef.subPictureType(intStream)
// JavaScript syntax
dvdObjRef.subPictureType(intStream);
Description
DVD method; specifies the type of a specified sub-picture stream.
This method can return the following values:
Parameters
intStream
Required. An integer that specifies the stream to test.
Symbol Description
#unknown The sub-picture type is unknown.
#Language The sub-picture contains language-related content such as movie subtitles or
other text.
#Other The sub-picture contains non language-related content such as a bouncing ball in
karaoke titles.
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