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Version: 3.1.0 |
wxFileOutputStream Class Reference
#include <wx/wfstream.h>
Inheritance diagram for wxFileOutputStream:
Detailed Description
This class represents data written to a file.
There are actually two such groups of classes: this one is based on wxFile whereas wxFFileOutputStream is based in the wxFFile class.
Note that wxOutputStream::SeekO() can seek beyond the end of the stream (file) and will thus not return wxInvalidOffset for that.
Library: wxBase
Category: Streams
Public Member Functions | |
| wxFileOutputStream (const wxString &ofileName) | |
| Creates a new file with ofileName name and initializes the stream in write-only mode. | |
| wxFileOutputStream (wxFile &file) | |
| Initializes a file stream in write-only mode using the file I/O object file. | |
| wxFileOutputStream (int fd) | |
| Initializes a file stream in write-only mode using the file descriptor fd. | |
| virtual | ~wxFileOutputStream () |
| Destructor. | |
| bool | IsOk () const |
| Returns true if the stream is initialized and ready. | |
| wxFile * | GetFile () const |
| Returns the underlying file object. | |
| Public Member Functions inherited from wxOutputStream | |
| 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. | |
| Public Member Functions inherited from wxStreamBase | |
| 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 | 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 | |
| Protected Member Functions inherited from wxOutputStream | |
| size_t | OnSysWrite (const void *buffer, size_t bufsize) |
| Internal function. | |
Constructor & Destructor Documentation
| wxFileOutputStream::wxFileOutputStream | ( | const wxString & | ofileName | ) |
Creates a new file with ofileName name and initializes the stream in write-only mode.
- Warning
- You should use wxStreamBase::IsOk() to verify if the constructor succeeded.
| wxFileOutputStream::wxFileOutputStream | ( | wxFile & | file | ) |
Initializes a file stream in write-only mode using the file I/O object file.
| wxFileOutputStream::wxFileOutputStream | ( | int | fd | ) |
Initializes a file stream in write-only mode using the file descriptor fd.
|
virtual |
Destructor.
Member Function Documentation
| wxFile* wxFileOutputStream::GetFile | ( | ) | const |
Returns the underlying file object.
- Since
- 2.9.5
|
virtual |
Returns true if the stream is initialized and ready.
Reimplemented from wxStreamBase.
Reimplemented in wxFileStream.