PathOperations (C++)

Description

This examples demonstrates the use of methods in TPath class to do operations with files and directories.

Code

void __fastcall TForm1::btnDriveExistsClick(TObject *Sender)
{
	/* Check if drive exists */
	if (TPath::DriveExists(edPath->Text))
		MessageDlg("Drive exists!", mtInformation, TMsgDlgButtons() << mbOK, 0);
	else
		MessageDlg("Not drive found to specified path!", mtInformation, TMsgDlgButtons() << mbOK, 0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::btnChangeExtentionClick(TObject *Sender)
{
	/* Change the extention of the given file or directory with the specified extention */
	try
	{
		edPath->Text = TPath::ChangeExtension(edPath->Text, edExtention->Text);
	}
	catch(...)
	{
    	/* Catch the possible exceptions */
		MessageDlg("Incorrect path or extention", mtError, TMsgDlgButtons() << mbOK, 0);
	}
}
//---------------------------------------------------------------------------

void __fastcall TForm1::btnGetDirectoryNameClick(TObject *Sender)
{
	String LDirectoryName;
	/* Extract the directory name from specified parh */
	try
	{
		LDirectoryName = TPath::GetDirectoryName(edPath->Text);

		if (LDirectoryName == "")
			MessageDlg("No directory found at specified path", mtInformation, TMsgDlgButtons() << mbOK, 0);
		else
			MessageDlg("The directory name is: " + LDirectoryName, mtInformation, TMsgDlgButtons() << mbOK, 0);
	}
	catch(...)
	{
		/* Catch the possible exceptions */
		MessageDlg("Incorrect path!", mtError, TMsgDlgButtons() << mbOK, 0);
	}
}
//---------------------------------------------------------------------------

void __fastcall TForm1::btnGetFileNameClick(TObject *Sender)
{
	String LFileName;
	/* Extract the file name from specified parh */
	try
	{
		LFileName = TPath::GetFileName(edPath->Text);

		if (LFileName == "")
			MessageDlg("No file found at specified path", mtInformation, TMsgDlgButtons() << mbOK, 0);
		else
			MessageDlg("The file name is: " + LFileName, mtInformation, TMsgDlgButtons() << mbOK, 0);
	}
	catch(...)
	{
		/* Catch the possible exceptions */
		MessageDlg("Incorrect path!", mtError, TMsgDlgButtons() << mbOK, 0);
	}
}
//---------------------------------------------------------------------------

void __fastcall TForm1::btnHasExtentionClick(TObject *Sender)
{
	if (TPath::HasExtension(edPath->Text))
		MessageDlg("The file has extention!", mtInformation, TMsgDlgButtons() << mbOK, 0);
	else
		MessageDlg("Incorrect path!", mtError, TMsgDlgButtons() << mbOK, 0);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::btnGetExtentionClick(TObject *Sender)
{
	String LExtention;
	/* Extract the extention from specified parh */
	try
	{
		LExtention = TPath::GetExtension(edPath->Text);

		if (LExtention == "")
			MessageDlg("The file name has no extention", mtInformation, TMsgDlgButtons() << mbOK, 0);
		else
			MessageDlg("The extention is: " + LExtention, mtInformation, TMsgDlgButtons() << mbOK, 0);
	}
	catch(...)
	{
		/* Catch the possible exceptions */
		MessageDlg("Incorrect path!", mtError, TMsgDlgButtons() << mbOK, 0);
	}
}
//---------------------------------------------------------------------------

Uses

• System.IOUtils.TPath.ChangeExtension ( fr | de | ja )
• System.IOUtils.TPath.DriveExists ( fr | de | ja )
• System.IOUtils.TPath.GetDirectoryName ( fr | de | ja )
• System.IOUtils.TPath.GetExtension ( fr | de | ja )
• System.IOUtils.TPath.GetFileName ( fr | de | ja )
• System.IOUtils.TPath.HasExtension ( fr | de | ja )