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--- developer:sdksamples:insertpluginmenu [2020/08/14]
127.0.0.1 external edit
+++ — (current)
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-====== 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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