CImage:KwdGetStrEx
The KwdGetStrEx method returns a success code and the value of a string keyword in the image header.
sValue, bSuccess = CImage:KwdGetStrEx( sKwd ) |
sKwd is the keyword name.
sValue is the returned value of sKwd .
On success, bSuccess is true.
On failure, bSuccess is false and sValue is nil.
This method returns a boolean success code that tells if the keyword exists in the image header. If true, then the keyword value is also returned. Alternatively, KwdGetStr returns only 1 parameter, which is the keyword value.
Suppose a CImage named I exists and contains keyword "FILTER" with the value "Red". The following script returns the value of FILTER for the imageI:
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-- does the keyword exist? |
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-- keyword exists |
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-- prints FILTER= Red |
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