Base class for streams.
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#include <ibstream.h>
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virtual tresult | read (void *buffer, int32 numBytes, int32 *numBytesRead=nullptr)=0 |
| Reads binary data from stream.
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virtual tresult | write (void *buffer, int32 numBytes, int32 *numBytesWritten=nullptr)=0 |
| Writes binary data to stream.
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virtual tresult | seek (int64 pos, int32 mode, int64 *result=nullptr)=0 |
| Sets stream read-write position.
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virtual tresult | tell (int64 *pos)=0 |
| Gets current stream read-write position.
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virtual tresult | queryInterface (const TUID _iid, void **obj)=0 |
| Query for a pointer to the specified interface.
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virtual uint32 | addRef ()=0 |
| Adds a reference and returns the new reference count.
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virtual uint32 | release ()=0 |
| Releases a reference and returns the new reference count.
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Base class for streams.
- read/write binary data from/to stream
- get/set stream read-write position (read and write position is the same)
◆ IStreamSeekMode
Enumerator |
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kIBSeekSet | set absolute seek position
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kIBSeekCur | set seek position relative to current position
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kIBSeekEnd | set seek position relative to stream end
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◆ read()
virtual tresult read |
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void * | buffer, |
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int32 | numBytes, |
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int32 * | numBytesRead = nullptr ) |
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pure virtual |
Reads binary data from stream.
- Parameters
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buffer | : destination buffer |
numBytes | : amount of bytes to be read |
numBytesRead | : result - how many bytes have been read from stream (set to 0 if this is of no interest) |
◆ write()
virtual tresult write |
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void * | buffer, |
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int32 | numBytes, |
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int32 * | numBytesWritten = nullptr ) |
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pure virtual |
Writes binary data to stream.
- Parameters
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buffer | : source buffer |
numBytes | : amount of bytes to write |
numBytesWritten | : result - how many bytes have been written to stream (set to 0 if this is of no interest) |
◆ seek()
Sets stream read-write position.
- Parameters
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pos | : new stream position (dependent on mode) |
mode | : value of enum IStreamSeekMode |
result | : new seek position (set to 0 if this is of no interest) |
◆ tell()
Gets current stream read-write position.
- Parameters
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pos | : is assigned the current position if function succeeds |
◆ iid
const::Steinberg::FUID iid |
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static |