using namespace System::IO;
Read Bytes From A File
__int64 FileByteNumber;
int ReadByte;
FileStream ^SourceFile = gcnew FileStream(SelectFileDialog->FileName, FileMode::Open, FileAccess::Read, FileShare::None);
for (FileByteNumber = 0; FileByteNumber < SourceFile->Length; FileByteNumber++)
{
//----- READ EACH BYTE -----
if ((ReadByte = SourceFile->ReadByte()) == -1)
throw gcnew Exception("File read too short");
//ReadByte has the value but is actually an integer
}
SourceFile->Close();
Overwrite Bytes In A File As Its Read
//Use
FileAccess::ReadWrite
//and
SourceFile->WriteByte(Convert::ToByte('-'))
To move back 1 byte before writing:
SourceFile->Seek(-1,SeekOrigin::Current);
SourceFile->WriteByte(Convert::ToByte('-'));
SourceFile->ReadByte();
Read String From A File
if (File::Exists(TemporaryDirectory + EXTERNAL_EXPORTER_STATUS_FILE))
{
StreamReader ^StreamReader1 = gcnew StreamReader(TemporaryDirectory + EXTERNAL_EXPORTER_STATUS_FILE);
MyString = StreamReader1->ReadToEnd();
StreamReader1->Close();
}
USEFUL?
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