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developer:sdksamples:insertpluginmenu [2015/09/14]
 developer:sdksamples:insertpluginmenu [2020/08/14]
127.0.0.1 external edit
Line 1: Line 1:
 +====== Add a Custom Menu to Rhino's Menu ======
 +====== C++ ======
 +> **Summary:** //Demonstrates how to add a custom menu to Rhino's menu using the Rhino SDK//
 +
 +=====Question=====
 +I am trying to add a submenu to Rhino's **File** menu. I have been fiddling around with the Insert­Plug­In­Menu­To­Rhino­Menu() and ­Insert­Plug­In­Item­To­Rhino­Menu() functions but I do not seem to be getting anywhere. Insert­Plug­In­Menu­To­Rhino­Menu() adds a menu into the Rhino's main menu bar. Insert­Plug­In­Item­To­RhinoMenu() adds a menu item anywhere in the Rhino menu. I believe I want a little of both.
 +
 +=====Answer=====
 +To insert a menu item, or a submenu, into Rhino's menu, do the following:
 +
 +  - Use CRhinoApp::FindMenuItem to search through Rhino's menu structure for an existing menu item that's where you want to insert your menu item.
 +  - Use CRhinoPlugIn::InsertPlugInItemToRhinoMenu to insert your menu into Rhino's menu.
 +
 +=====Example=====
 +The following example command demonstrates how to add and remove a custom menu from Rhino's menu.
 +
 +
 +<code c++>
 +////////////////////////////////////////////////////////////////
 +// cmdMyMenu.cpp
 +
 +#include "StdAfx.h"
 +#include "MyTestPlugIn.h"
 +#include "Resource.h"
 +
 +////////////////////////////////////////////////////////////////
 +////////////////////////////////////////////////////////////////
 +//
 +// BEGIN MyMenu command
 +//
 +
 +class CCommandMyMenu : public CRhinoCommand
 +{
 +public:
 +  CCommandMyMenu() {}
 +  ~CCommandMyMenu() {}
 +  UUID CommandUUID()
 +  {
 +    static const GUID MyMenuCommand_UUID =
 +    { <TODO: add your command uuid here> };
 +    return MyMenuCommand_UUID;
 +  }
 +  const wchar_t* EnglishCommandName() { return L"MyMenu"; }
 +  const wchar_t* LocalCommandName() { return L"MyMenu"; }
 +  CRhinoCommand::result RunCommand( const CRhinoCommandContext& );
 +
 +  BOOL LoadMyMenu();
 +  BOOL UnloadMyMenu();
 +
 +private:
 +  CMenu m_menu;
 +};
 +
 +// The one and only CCommandMyMenu object
 +static class CCommandMyMenu theMyMenuCommand;
 +
 +CRhinoCommand::result CCommandMyMenu::RunCommand( const CRhinoCommandContext& context )
 +{
 +  bool bVisible = ( m_menu.GetSafeHmenu() ) ? true : false;
 +
 +  ON_wString prompt;
 +  prompt.Format( L"%s is %s. New value", 
 +    EnglishCommandName(), 
 +    bVisible ? L"visible" : L"hidden" 
 +    );
 +
 +  CRhinoGetOption go;
 +  go.SetCommandPrompt( prompt );
 +  int s_opt = go.AddCommandOption( RHCMDOPTNAME(L"Show") );
 +  int h_opt = go.AddCommandOption( RHCMDOPTNAME(L"Hide") );
 +  int t_opt = go.AddCommandOption( RHCMDOPTNAME(L"Toggle") );
 +  go.GetOption();
 +  if( go.CommandResult() != success )
 +    return go.CommandResult();
 +
 +  const CRhinoCommandOption* opt = go.Option();
 +  if( 0 == opt )
 +    return failure;
 +
 +  if( opt->m_option_index == s_opt )
 +  {
 +    if( false == bVisible )
 +      LoadMyMenu();
 +  }
 +  else if( opt->m_option_index == h_opt )
 +  {
 +    if( true == bVisible )
 +      UnloadMyMenu();
 +  }
 +  else
 +  {
 +    if( true == bVisible )
 +      UnloadMyMenu();
 +    else
 +      LoadMyMenu();
 +  }
 +
 +  return success;
 +}
 +
 +BOOL CCommandMyMenu::LoadMyMenu()
 +{
 +  // Switch the module state so resources are read 
 +  // from our plug-in (DLL), not Rhino.
 +  AFX_MANAGE_STATE( AfxGetStaticModuleState() );
 +
 +  // Try to load our menu resource from our plug-in.
 +  // Note, m_my_menu is a CMenu member variable.
 +  if( 0 == m_menu.GetSafeHmenu() )
 +  {
 +    if( !m_menu.LoadMenu(IDR_MY_MENU) )
 +      return FALSE;
 +  }
 +
 +  // Find a location in Rhino's menu to insert our
 +  // menu item. For this example, we will insert our
 +  // menu on the "Tools" menu just below the "Commands"
 +  // item.
 +  HMENU hParent = 0;
 +  int index = 0;
 +  //if( !RhinoApp().FindRhinoMenuItem(L"&File::&Print...Ctrl+P", hParent, index) )
 +  if( !RhinoApp().FindRhinoMenuItem(L"Too&ls::&Commands", hParent, index) )
 +  {
 +    m_menu.DestroyMenu();
 +    return FALSE;
 +  }
 +
 +  // Create and initialize a MENUITEMINFO struct.
 +  MENUITEMINFO mi;
 +  memset( &mi, 0, sizeof(mi) );
 +  mi.cbSize = sizeof(mi);
 +
 +  // Fill in our menu info
 +  mi.fMask = MIIM_ID | MIIM_TYPE | MIIM_STATE | MIIM_SUBMENU;
 +  mi.wID = MF_POPUP;
 +  mi.fType = MFT_STRING;
 +
 +  ON_wString wstr = L"MyMenu";
 +  mi.dwTypeData = wstr.Array();
 +
 +  mi.fState = MFS_ENABLED;
 +  mi.hSubMenu = m_menu.GetSafeHmenu();
 +  mi.hSubMenu = ::GetSubMenu( mi.hSubMenu, 0 );
 +  mi.wID = IDR_MY_MENU;
 +
 +  // Add our menu to Rhino's menu
 +  BOOL rc = MyTestPlugIn().InsertPlugInItemToRhinoMenu( hParent, index + 1, &mi );
 +  if( !rc )
 +    m_menu.DestroyMenu();
 +
 +  return rc;
 +}
 +
 +BOOL CCommandMyMenu::UnloadMyMenu()
 +{
 +  BOOL rc = FALSE;
 +
 +  // Find our menu item in Rhino's menu.
 +  HMENU hParent = 0;
 +  int index = 0;
 +  if( RhinoApp().FindRhinoMenuItem(L"Too&ls::MyMenu", hParent, index) )
 +  {
 +    // Remove our menu item.
 +    if( ::RemoveMenu(hParent, index, MF_BYPOSITION) )
 +    {
 +      // Redraw Rhino's menu bar.
 +      DrawMenuBar( RhinoApp().MainWnd() );
 +      m_menu.DestroyMenu();
 +      rc = TRUE;
 +    }
 +  }
 +
 +  return rc;
 +}
 +
 +//
 +// END MyMenu command
 +//
 +////////////////////////////////////////////////////////////////
 +////////////////////////////////////////////////////////////////
 +
 +</code>
 +
 +
 +{{tag>Developer cplusplus}}
  

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