_FWrite( ) API Library Routine


unsigned int _FWrite(FCHAN chan, char FAR buffer, int length) FCHAN chan; / File channel of file to write to. / char FAR buffer; /* Buffer address. / int length; / Number of bytes to write. */

_FWrite( ) doesn't add a terminator to the file. No translation is performed on the bytes before they are written. _FWrite( ) returns the number of bytes written.

For more information on how to create an API library and integrate it with Visual FoxPro, see Accessing the Visual FoxPro API.

The following example creates a test file and writes some data to it using _FWrite( ).

Visual FoxPro Code

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SET LIBRARY TO FWRITE

C Code

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#include <pro_ext.h> FAR Example(ParamBlk FAR parm) { FCHAN fchan; fchan = _FCreate("temp.tmp", FC_NORMAL); _FWrite(fchan, "Hello, world.", _StrLen("Hello, world.")); _FWrite(fchan, "\xd\xa", 2); _FWrite(fchan, "1234567890", 10); _FClose(fchan); } FoxInfo myFoxInfo[] = { {"FWRITE", (FPFI) Example, CALLONLOAD, ""}, }; FoxTable _FoxTable = { (FoxTable FAR ) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo };

Copy Code

#include <pro_ext.h>
FAR Example(ParamBlk FAR *parm)
{
   FCHAN fchan;
   fchan = _FCreate("temp.tmp", FC_NORMAL);
   _FWrite(fchan, "Hello, world.", _StrLen("Hello, world."));
   _FWrite(fchan, "\xd\xa", 2);
   _FWrite(fchan, "1234567890", 10);
   _FClose(fchan);
}
FoxInfo myFoxInfo[] = {
   {"FWRITE", (FPFI) Example, CALLONLOAD, ""},
};
FoxTable _FoxTable = {
   (FoxTable FAR *) 0, sizeof(myFoxInfo)/sizeof(FoxInfo), myFoxInfo
};

Reference

_FFlush( ) API Library Routine
_FPuts( ) API Library Routine
_FSeek( ) API Library Routine

Other Resources

API Library Construction
Accessing the Visual FoxPro API

Remarks

Example

Visual FoxPro Code

C Code

See Also

Reference

Other Resources