System::SetFilePointer

System::SetFilePointer will change the current file position of a file previously opened by System::CreateFile.

public System::SetFilePointer(
   OSHandle FileHandle,
   Integer Position = 0,
   Integer Method = System::FILE_BEGIN
:  Integer Position
);

Parameters

FileHandle	From previous call to System::CreateFile.
Position	The position that the file wants to be moved to.
Method	Any one of:- System::FILE_BEGIN; System::FILE_CURRENT; xor System::FILE_END.
Position	resulting position after the method has completed.

Return Values

The error.errorCode value will be set to the underlining windows error message code and the error.errorString will have a detailed description of the error.

Remarks

System::SetFilePointer(FileHandle) will move to the begining of the file.
System::SetFilePointer(FileHandle,0,System::FILE_CURRENT:currentPosition) will return the current location of the file.

Example Use

variable fileHandle, fileBuffer;
System::CreateFile(L"MyFile.txt",
   System::OPEN_EXISTING|System::READ_ONLY:fileHandle);
System::SetFilePointer(fileHandle,50);
System::ReadFile(fileHandle:fileBuffer);
System::MessageBox(fileBuffer.ToString(),
   L"File Contents of MyFile.txt after 50 bytes");

Requirements

TScript Version: 1.3

Also See

System::CreateFile, System::ReadFile, System::WriteFile

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