# OLEVIEW Sample: ActiveX Object Viewer

The OLEVIEW sample illustrates how to implement ActiveX Object viewers through custom ActiveX interfaces. These custom interfaces are implemented in Iviewers.dll.

Security Note
This sample code is provided to illustrate a concept and should not be used in applications or Web sites, as it may not illustrate the safest coding practices.

# Building and Running the Sample

#### To build and run the OLEVIEW sample

1. Open the solution oleview.sln.

2. On the Build menu, click Build.

The application has an SDI interface with two panes. The left pane allows you to browse the registry by means of a tree control. Once you select a node, the right pane will display the pertinent information.

Note that this sample application cannot display information for all the objects, but rather only for objects that support the `IViewer` interface.

# Keywords

This sample demonstrates the following keywords:

AfxGetInstanceHandle; AfxMessageBox; AfxOleInit; AfxThrowMemoryException; AfxThrowOleException; BitBlt; CBitmap::CreateBitmap; CBitmap::LoadBitmap; CBrush::CreateSolidBrush; CCmdTarget::BeginWaitCursor; CCmdTarget::EndWaitCursor; CDC::Attach; CDC::BitBlt; CDC::CreateCompatibleDC; CDC::DeleteDC; CDC::Detach; CDC::GetPixel; CDC::GetTextMetrics; CDC::SelectObject; CDialog::DoModal; CDialog::OnInitDialog; CDocument::OnCloseDocument; CDocument::OnNewDocument; CDocument::UpdateAllViews; CFileDialog::DoModal; CFileDialog::GetPathName; CFont::CreateFontIndirect; CFrameWnd::Create; CFrameWnd::GetActiveDocument; CFrameWnd::LoadFrame; CFrameWnd::OnCreateClient; CFrameWnd::SetActiveView; CGdiObject::DeleteObject; CListBox::SetCurSel; CObject::AssertValid; CObject::Dump; CRect::Height; CRect::Width; CScrollView::SetScrollSizes; CSplitterWnd::CreateStatic; CSplitterWnd::CreateView; CSplitterWnd::GetColumnInfo; CSplitterWnd::GetPane; CSplitterWnd::SetColumnInfo; CStatic::SetIcon; CString::Format; CString::GetBuffer; CString::IsEmpty; CString::LoadString; CString::ReleaseBuffer; CView::GetDocument; CView::OnDragEnter; CView::OnDragLeave; CView::OnDragOver; CView::OnDrop; CView::OnInitialUpdate; CView::OnUpdate; CWinApp::AddDocTemplate; CWinApp::ExitInstance; CWinApp::InitInstance; CWinApp::OnFileNew; CWinApp::SetRegistryKey; CWnd::DoDataExchange; CWnd::DragAcceptFiles; CWnd::GetParent; CWnd::GetSafeHwnd; CWnd::GetStyle; CWnd::GetWindowPlacement; CWnd::GetWindowRect; CWnd::OnCreate; CWnd::OnDestroy; CWnd::OnSize; CWnd::OnSysColorChange; CWnd::ScreenToClient; CWnd::SetFocus; CWnd::SetFont; CWnd::SetRedraw; CWnd::SetWindowPlacement; CWnd::SetWindowPos; CWnd::SetWindowText; CWnd::ShowWindow; ClientToScreen; CoCreateInstance; CoFreeUnusedLibraries; CoGetClassObject; CoGetMalloc; CreateSolidBrush; DeleteItem; DeleteObject; EnumFontFamilies; ExtTextOut; ExtractIcon; FormatMessage; FreeLibrary; FreeProcInstance; GetBkColor; GetClientRect; GetDC; GetDeviceCaps; GetNearestColor; GetObject; GetParent; GetProcAddress; GetProfileInt; GetProfileString; GetStockObject; GetSysColor; GetSystemMetrics; GetTextExtentPoint; GetTextMetrics; GetUserDefaultLCID; GetVersionEx; GetWindowLong; GetWindowRect; IClassFactory::CreateInstance; IMalloc::Free; IUnknown::QueryInterface; IUnknown::Release; IsWindow; LoadBitmap; LoadIcon; LoadLibrary; LoadLibraryEx; LocalFree; MAKEINTRESOURCE; MakeProcInstance; MulDiv; OffsetRect; Polygon; RGB; RectVisible; RegCloseKey; RegEnumKey; RegOpenKey; RegQueryValue; ReleaseDC; SelectObject; SetBkColor; SetTextColor; SetWindowPos; TabbedTextOut; WinExec; WinHelp; WriteProfileString; _fstrnicmp; atoi; isdigit; isspace; isxdigit; lstrcat; lstrcmpi; lstrcpy; lstrlen; max; strrchr; toupper; wsprintf

Note
Some samples, such as this one, have not been modified to reflect the changes in the Visual C++ wizards, libraries, and compiler, but still demonstrate how to complete your desired task.