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CStats:GetErrMsg
The GetErrMsg method returns the error message when a statistics calculation fails.
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sMsg = CStats:GetErrMsg() |
On success, the
error message string sMsg is
returned.
If there was no
error, an empty string, "", is
returned.
Each CStats calculation returns a value and not a status code. If you wish to check the result of a calculation, check GetStatus for a non zero value. If it is non-zero, you can fetch the error message using GetErrMsg. Note: This method also returns an empty string if there is no CStats object.
The following script fragment checks the MinMaxClipMean calculation for success and prints an error message if it failed:
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S = CStats:new() |
-- create a CStats object |
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S:Init( I, R ) |
-- specify CImage and CRect to measure |
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nVal = S:MinMaxClipMean() |
-- returns the mean value |
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if ( S:GetStatus() ) then |
-- if stats calculation failed, this returns non 0 |
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Msg( S:GetErrMsg() ) |
-- show the error message |
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end |
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