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Autodocs
 Resources:
 card.resource
  BeginCardAccess
  CardAccessSpeed
  CardChangeCount
  CardForceChange
  CardInterface
  CardMiscControl
  CardProgramVoltage
  CardResetCard
  CardResetRemove
  CopyTuple
  DeviceTuple
  EndCardAccess
  GetCardMap
  IfAmigaXIP
  OwnCard
  ReadCardStatus
  ReleaseCard
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Docs » Autodocs » card.resource » BeginCardAccess

NAME

	BeginCardAccess -- Called before you begin credit-card memory access

SYNOPSIS

	result=BeginCardAccess( handle )
d0 a1
BOOL BeginCardAccess( struct CardHandle * );

FUNCTION

	This function should be called before you begin access
to credit-card memory.
Its effect will depend on the type of Amiga machine your
code happens to be running on. On some machines it
will cause an access light to be turned ON.

INPUTS

	handle - Same handle as that used when OwnCard() was called.

RESULT

	TRUE if you are still the owner of the credit-card, and
memory access is permitted. FALSE if you are no longer
the owner of the credit-card (usually indicating that
the card was removed).

NOTES

	This function may be called from within a task, or from a level 1
or level 2 interrupt.
It is highly recommended that you call this function
before accessing credit-card memory, as well as checking
the return value. If it is a return value of FALSE, you
should stop accessing credit-card memory.

SEE ALSO

OwnCard(), EndCardAccess()

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