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The FNWRITE macro provides the declaration for the application-defined callback function to write data to a file in an FDI context.
Syntax
void FNWRITE(
[in] fn
);
Parameters
[in] fn
An application-defined value used to identify the open file.
Return value
None
Remarks
The function accepts parameters similar to _write.
Examples
FNWRITE(fnFileWrite)
{
DWORD dwBytesWritten = 0;
if ( WriteFile((HANDLE)hf, pv, cb, &dwBytesWritten, NULL) == FALSE )
{
dwBytesWritten = (DWORD)-1;
}
return dwBytesWritten;
}
Requirements
Requirement | Value |
---|---|
Target Platform | Windows |
Header | fdi.h |