IUIFramework::Initialize method (uiribbon.h)

Connects the host application to the Windows Ribbon framework.

Syntax

HRESULT Initialize(
  [in] HWND           frameWnd,
  [in] IUIApplication *application
);

Parameters

[in] frameWnd

Type: HWND

Handle to the top-level window that will contain the Ribbon.

[in] application

Type: IUIApplication*

Pointer to the IUIApplication implementation of the host application.

Return value

Type: HRESULT

Returns S_OK if successful; otherwise, an error value from the following list.

Remarks

This method must be called by the host application for each top-level window that requires a ribbon.

This method is used to set up the hooks that enable the Ribbon framework to invoke callbacks in the host application.

To initialize the Ribbon successfully, a compiled Ribbon markup file must be available as a resource and specified in a subsequent call to IUIFramework::LoadUI. This markup file is an integral component of the framework; it specifies the controls to be used and their layout.

If IUIFramework::Initialize returns successfully:

• To eliminate inconsistency, redundancy, and incompatibility between Ribbon and traditional command models, the Ribbon framework removes the standard menu bar of the top-level window in the host application.
• The framework removes references to the WS_EX_CLIENTEDGE style.
  Note  The WS_EX_CLIENTEDGE style specifies that a window has a border with a sunken edge. This style visually interferes with the integration of the Ribbon and the host application.
   
• The framework requires that the WS_SYSMENU style be enabled. If WS_SYSMENU is not enabled, the framework does not provide alternate functionality and unpredictable rendering of the Ribbon may result.
  Note  The WS_SYSMENU style specifies that the application window has a system menu on its title bar. By association, the WS_CAPTION style must also be specified (see ERROR_INVALID_WINDOW_HANDLE in Return Values above).
   

Examples

The following example demonstrates a basic framework initialization function.

//
//  FUNCTION:    InitializeFramework(HWND)
//
//  PURPOSE:    Initialize the Ribbon framework and bind a Ribbon to the application.
//
//  PARAMETERS:    
//                hWnd - Handle to the Ribbon host application window. 
//
//  COMMENTS:
//
//    In order to get a Ribbon to display, the Ribbon framework must be initialized. 
//    This involves three important steps:
//      1) Instantiate the Ribbon framework object (CLSID_UIRibbonFramework).
//      2) Pass the host HWND and IUIApplication object to the framework.
//      3) Load the binary markup compiled by the UI Command Compiler (UICC.exe).
//
//
bool InitializeFramework(HWND hWnd)
{
    // Instantiate the Ribbon framework object.
    HRESULT hr = CoCreateInstance(
        CLSID_UIRibbonFramework, 
        NULL, 
        CLSCTX_INPROC_SERVER, 
        IID_PPV_ARGS(&g_pFramework));
    if (!SUCCEEDED(hr))
    {
        return false;
    }    

    // Create the application object (IUIApplication) and call the 
    // framework Initialize method, passing the application object and the 
    // host HWND that the Ribbon will attach itself to.
    CComObject<CApplication> *pApplication = NULL;
    CComObject<CApplication>::CreateInstance(&pApplication);
    hr = pApplication->QueryInterface(&g_pApplication);
    if (!SUCCEEDED(hr))
    {
        return false;
    } 

    hr = g_pFramework->Initialize(hWnd, g_pApplication);
    if (!SUCCEEDED(hr))
    {
        return false;
    }

    // Load the binary markup.  
    // Initiate callbacks to the IUIApplication object that was 
    // provided to the framework earlier and bind command handler(s) 
    // to individual commands.
    hr = g_pFramework->LoadUI(GetModuleHandle(NULL), L"APPLICATION_RIBBON");
    if (!SUCCEEDED(hr))
    {
        return false;
    }
    return true;
}

Requirements

See also

IUIFramework

IUIFramework::LoadUI

Markup Elements

Windows Ribbon Framework Samples