C / C++ / MFC

CWinApp * pApp = AfxGetApp ();
ASSERT_VALID ( pApp );

// Iterate through the application's document templates list
POSITION posTemplate = pApp->GetFirstDocTemplatePosition ();

while ( NULL != posTemplate ) {

	// For each document template object...
	CDocTemplate * pTemplate = pApp->GetNextDocTemplate ( posTemplate );
	ASSERT_VALID ( pTemplate );
	ASSERT_KINDOF ( CDocTemplate, pTemplate );

	// Iterate through the template's document list
	POSITION posDocument = pTemplate->GetFirstDocPosition ();		

	while ( NULL != posDocument ) {

		// For each document object...
		CDocument * pDocument = pTemplate->GetNextDoc ( posDocument );
		ASSERT_VALID ( pDocument );
		
		// update the documents view
		pDocument->UpdateAllViews ( NULL );

	}

}