System.SysUtils.FileWrite
Delphi
function FileWrite(Handle: THandle; const Buffer; Count: LongWord): Integer;
function FileWrite(Handle: THandle; const Buffer:TBytes; Offset, Count: LongWord): Integer;
C++
extern DELPHI_PACKAGE int __fastcall FileWrite(Winapi::Windows::THandle Handle, const void *Buffer, System::LongWord Count)/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.SysUtils.pas System.SysUtils.hpp |
System.SysUtils | System.SysUtils |
Description
Writes the contents of a buffer to the current position in a file.
FileWrite writes Count bytes to the file given by Handle from the buffer specified by Buffer. Handle is a file handle returned by the FileOpen or FileCreate method.
The return value is the number of bytes actually written, or -1 if an error occurred.
Note: Do not mix routines that take or return file handles with those that use Delphi language file variables (typically seen as var F). To write to a file specified by a Delphi file variable, use Write, Writeln, or BlockWrite instead.
See Also