CStats:GetErrMsg
The GetErrMsg method returns the error message when a statistics calculation fails.
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 checks the MinMaxClipMean calculation for success and prints an error message if it failed:
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-- create a CStats object |
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-- specify CImage and CRect to measure |
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-- returns the mean value |
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-- if stats calculation failed, this returns non 0 |
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-- show the error message |
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