TFileStream Read Write?

Hvad mener du med at læse en string fra en filestream ?
Hvis det er en ASCII fil (altså ikke binær), så brug en Tstringlist, det
er nemmere.

Vedr. parametre synes jeg det er miget godt forklaret i hjælpen:

To create or open a file and get access to a handle for the file, you simply instantiate a TFileStream. This opens or creates a named file and provides methods to read from or write to it. If the file cannot be opened, TFileStream raises an exception.

constructor Create(const filename: string; Mode: Word);

The Mode parameter specifies how the file should be opened when creating the file stream. The Mode parameter consists of an open mode and a share mode or’ed together. The open mode must be one of the following values:

Table 1.11    Open modes

Value    Meaning
fmCreate    TFileStream a file with the given name. If a file with the given name exists, open the file in write mode.
fmOpenRead    Open the file for reading only.
fmOpenWrite    Open the file for writing only. Writing to the file completely replaces the current contents.
fmOpenReadWrite    Open the file to modify the current contents rather than replace them.
The share mode can be one of the following values with the restrictions listed below:

Table 1.12    Share modes

Value    Meaning
fmShareCompat    Sharing is compatible with the way FCBs are opened.
fmShareExclusive    Other applications can not open the file for any reason.
fmShareDenyWrite    Other applications can open the file for reading but not for writing.
fmShareDenyRead    Other applications can open the file for writing but not for reading.
fmShareDenyNone    No attempt is made to prevent other applications from reading from or writing to the file.
Note that which share mode you can use depends on which open mode you used. The following table shows shared modes that are available for each open mode.

Open Mode    fmShareCompat    fmShareExclusive    fmShareDenyWrite    fmShareDenyRead    fmShareDenyNone
fmOpenRead    Can’t use    Can’t use    Available    Can’t use    Available
fmOpenWrite    Available    Available    Can’t use    Available    Available
fmOpenReadWrite    Available    Available    Available    Available    Available
The file open and share mode constants are defined in the SysUtils unit.

Stoney

takker...

Skriver du lige et svar, så du kan inkassere pointene.

:-)

Stoney