#include <wx/mstream.h>
This class allows using all methods taking a wxOutputStream reference to write to in-memory data.
Example:
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Public Member Functions | |
wxMemoryOutputStream (void *data=NULL, size_t length=0) | |
If data is NULL, then it will initialize a new empty buffer which will grow if required. | |
virtual | ~wxMemoryOutputStream () |
Destructor. | |
size_t | CopyTo (void *buffer, size_t len) const |
Allows you to transfer data from the internal buffer of wxMemoryOutputStream to an external buffer. | |
wxStreamBuffer * | GetOutputStreamBuffer () const |
Returns the pointer to the stream object used as an internal buffer for this stream. | |
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wxOutputStream () | |
Creates a dummy wxOutputStream object. | |
virtual | ~wxOutputStream () |
Destructor. | |
virtual bool | Close () |
Closes the stream, returning false if an error occurs. | |
virtual size_t | LastWrite () const |
Returns the number of bytes written during the last Write(). | |
void | PutC (char c) |
Puts the specified character in the output queue and increments the stream position. | |
virtual wxFileOffset | SeekO (wxFileOffset pos, wxSeekMode mode=wxFromStart) |
Changes the stream current position. | |
virtual wxFileOffset | TellO () const |
Returns the current stream position. | |
virtual wxOutputStream & | Write (const void *buffer, size_t size) |
Writes up to the specified amount of bytes using the data of buffer. | |
wxOutputStream & | Write (wxInputStream &stream_in) |
Reads data from the specified input stream and stores them in the current stream. | |
bool | WriteAll (const void *buffer, size_t size) |
Writes exactly the specified number of bytes from the buffer. | |
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wxStreamBase () | |
Creates a dummy stream object. | |
virtual | ~wxStreamBase () |
Destructor. | |
wxStreamError | GetLastError () const |
This function returns the last error. | |
virtual wxFileOffset | GetLength () const |
Returns the length of the stream in bytes. | |
virtual size_t | GetSize () const |
This function returns the size of the stream. | |
virtual bool | IsOk () const |
Returns true if no error occurred on the stream. | |
virtual bool | IsSeekable () const |
Returns true if the stream supports seeking to arbitrary offsets. | |
void | Reset (wxStreamError error=wxSTREAM_NO_ERROR) |
Resets the stream state. | |
bool | operator! () const |
Returns the opposite of IsOk(). | |
Additional Inherited Members | |
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size_t | OnSysWrite (const void *buffer, size_t bufsize) |
Internal function. | |
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virtual wxFileOffset | OnSysSeek (wxFileOffset pos, wxSeekMode mode) |
Internal function. | |
virtual wxFileOffset | OnSysTell () const |
Internal function. | |
If data is NULL, then it will initialize a new empty buffer which will grow if required.
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virtual |
Destructor.
If the buffer wasn't provided by the user, it will be deleted here.
Allows you to transfer data from the internal buffer of wxMemoryOutputStream to an external buffer.
len specifies the size of the buffer.
wxStreamBuffer * wxMemoryOutputStream::GetOutputStreamBuffer | ( | ) | const |
Returns the pointer to the stream object used as an internal buffer for this stream.