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NAME
- OpenIFF
-
prepare an IFFHandle to read or write a new IFF stream. (V36)
SYNOPSIS
error = OpenIFF(iff, rwMode);
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LONG OpenIFF(struct IFFHandle *, LONG);
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LONG OpenIFF(struct IFFHandle *, LONG);
FUNCTION
Initializes an IFFHandle structure for a new read or write. The direction of the I/O is given by the value of rwMode, which can be either IFFF_READ or IFFF_WRITE.
As part of its initialization procedure, OpenIFF() calls the client- supplied stream hook vector. The IFFStreamCmd packet will contain the following:
As part of its initialization procedure, OpenIFF() calls the client- supplied stream hook vector. The IFFStreamCmd packet will contain the following:
- sc_Command
-
IFFCMD_INIT
- sc_Buf
-
(Not applicable)
- sc_NBytes
-
(Not applicable)
INPUTS
- iff
-
pointer to IFFHandle structure. Starting with V39, this may be NULL, in which case IFFERR_NOMEM is returned.
- rwMode
-
IFFF_READ or IFFF_WRITE
RESULT
- error
-
contains an error code or 0 if successful