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Syntax

This section describes the syntax and usage of structured exception handling as implemented in Microsoft C. The following keywords are interpreted by the Microsoft C compiler as part of the structured exception-handling mechanism.

Keyword	Description
try	Begins a guarded body of code. Used with the except keyword to construct an exception handler, or with the finally keyword to construct a termination handler.
except	Begins a block of code that is executed only when an exception occurs within its associated try block.
finally	Begins a block of code that is executed whenever the flow of control leaves its associated try block.

The compiler also interprets the GetExceptionCode, GetExceptionInformation, and AbnormalTermination functions as keywords, and their use outside the appropriate exception-handling syntax generates a compiler error. Following are brief descriptions of these functions.

Function	Description
GetExceptionCode	Returns a code that identifies the type of exception. This function can be called only from within the filter expression or exception-handler block of a try-except exception handler.
GetExceptionInformation	Returns a pointer to an EXCEPTION_POINTERS structure containing pointers to the context record and the exception record. This function can be called only from within the filter expression of a try-except exception handler.
AbnormalTermination	Indicates whether the flow of control left the associated try block sequentially after executing the last statement in the block. This function can be called only from within the finally block of a try-finally termination handler.

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