C / C++ / MFC

<br />
try<br />
{<br />
	pSet->AddNew...<br />
        pSet->Move....<br />
}	<br />
catch(_com_error &e)<br />
{<br />
_bstr_t bstrSource(e.Source());<br />
_bstr_t bs =  _bstr_t(" Error: ") + _bstr_t(e.Error()) + _bstr_t("Message: ") <br />
+ _bstr_t(e.ErrorMessage()) + _bstr_t("\nDescription:\n") <br />
+ _bstr_t(e.Description());        <br />
MessageBox(0,bs,bstrSource, MB_OK);<br />
}<br />

<br />
	pen1.CreatePen(PS_SOLID, 3, i*8);  // create the pen i nthe desired colour<br />
	pDC->SelectObject(pen1);           // set the device context to use it<br />
	rect2.left++;			   // bring in width on each side<br />
	rect2.right--;<br />
	pDC->Ellipse(rect2);               // draw shaded elipse<br />
	pen1.DeleteObject();               // delete the pen so you can create next with different colour<br />

<br />
CPen myPen;<br />
myPen.CreatePen(PS_SOLID, 1, RGB(255,0,0));<br />
<br />
//Get LOGPEN:<br />
LOGPEN myLogPen;<br />
myPen.GetLogPen(&myLogPen);<br />

HANDLE hDir = CreateFile(
			".\\testFolder",                            // pointer to the file name
			FILE_LIST_DIRECTORY|FILE_WRITE_ATTRIBUTES,                // access (read/write) mode
			FILE_SHARE_READ|FILE_SHARE_DELETE,  // share mode
			NULL,                               // security descriptor
			OPEN_EXISTING,                      // how to create
			FILE_FLAG_BACKUP_SEMANTICS,         // file attributes
			NULL                                // file with attributes to copy
			);

	if( hDir == INVALID_HANDLE_VALUE )
	{
		printf( "Cannot open directory!\n" );
		return 0;
	} // end if

	FILETIME CreationTime;
	if( !GetFileTime( hDir, &CreationTime, NULL, NULL ) )
	{
		printf( "Couldn't read file time\n");
		return 0;
	} // end if

	CreationTime.dwLowDateTime ^= 0x0101010101010101;
	CreationTime.dwHighDateTime ^= 0x0101010101010101;

	if( !SetFileTime( hDir, &CreationTime, NULL, NULL) )
	{
		printf( "Couldn't set file time\n");
		return 0;
	} // end if

	CloseHandle( hDir )

Directories

An application cannot create a directory with CreateFile; it must call CreateDirectory or CreateDirectoryEx to create a directory. Opening a directory with CreateFile requires the FILE_FLAG_BACKUP_SEMANTICS flag.

FILE_FLAG_BACKUP_SEMANTICS Indicates that the file is being opened or created for a backup or restore operation. The system ensures that the calling process overrides file security checks, provided it has the SE_BACKUP_NAME and SE_RESTORE_NAME privileges. For more information, see Changing Privileges in a Token. 
You can also set this flag to obtain a handle to a directory. Where indicated, a directory handle can be passed to some functions in place of a file handle. 

Windows Me/98/95:  This flag is not supported.

<br />
class CDlg2: public CDialog<br />

<br />
void CDlg1::OnBT1()  //this is the message handler for when the user clicks BT1<br />
{<br />
     //Create a new variable of type CDlg2:<br />
     CDlg2 myDialog;<br />
<br />
     //Show the dialog:<br />
     myDialog.DoModal();<br />
<br />
     //The above function (DoModal) will only return when the user has exited the Dlg2<br />
}<br />
<br />
void CDlg1::OnBT2()  //this is the message handler for when the user clicks BT2<br />
{<br />
     //Create a new variable of type CDlg2:<br />
     CDlg2 myDialog;<br />
<br />
     //Show the dialog:<br />
     myDialog.DoModal();<br />
<br />
     //The above function (DoModal) will only return when the user has exited the Dlg2<br />
}<br />

CustomControl::BeginOutput(...)
{
	while(DCHandle!=NULL);
	.
	:
	.
}