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Include
GuruMeditation
Docs » Autodocs » graphics.library » CINIT

NAME

	CINIT -- Initialize user copperlist to accept intermediate 
user copper instructions.

SYNOPSIS

 	cl = CINIT( ucl , n )
cl = UCopperListInit( ucl , n )
a0 d0
struct CopList *UCopperListInit( struct UCopList *, UWORD );

FUNCTION

	Allocates and/or initialize copperlist structures/buffers
internal to a UCopList structure.
This is a macro that calls UCopListInit. You must pass a
(non-initialized) UCopList to CINIT (CINIT will NOT allocate
a new UCopList if ucl==0 ). If (ucl != 0) it will initialize the
intermediate data buffers internal to a UCopList.
The maximum number of intermediate copper list instructions
that these internal CopList data buffers contain is specified
as the parameter n.

INPUTS

	ucl - pointer to UCopList structure
n - number of instructions buffer must be able to hold

RESULT

	cl- a pointer to a buffer which will accept n intermediate copper 
instructions.
NOTE: this is NOT a UCopList pointer, rather a pointer to the
UCopList's->FirstCopList sub-structure.

BUGS

	CINIT will not actually allocate a new UCopList if ucl==0.
Instead you must allocate a block MEMF_PUBLIC|MEMF_CLEAR, the
sizeof(struct UCopList) and pass it to this function.
The system's FreeVPortCopLists function will take care of
deallocating it if they are called.
Prior to release V36 the CINIT macro had { } braces surrounding
the definition, preventing the proper return of the result value.
These braces have been removed for the V36 include definitions.

SEE ALSO

CINIT(), CMOVE(), CEND(), <graphics/copper.h>

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