Question: redefine some error

Hi,

errors such as

"Error, (in ImportMatrix) file or directory does not exist"
"Error, Matrix index out of range"

can I redefine the error message in a procedure?

say if "Error, (in ImportMatrix) file or directory does not exist" happens,

I want it to printf("You have not got the message yet.")

Generally, what shall I be looking for in the help in Maple?

 

Thanks.

casper

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