Cmenu类方法判断弹出按钮选中状态并做相应处理

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此方法实现每次点击菜单项时,使其选中的菜单项,打√标记,并设置到Disable状态.

在菜单项的响应函数中调用,形参传递对应的ID即可!

CMenu* pSubMenu=NULL; UINT Sub_IndexMax=0; pSubMenu = CMenu::FromHandle(GetSkinMenu(m_pMainWnd->m_hWnd))->GetSubMenu(1); Sub_IndexMax = pSubMenu->GetMenuItemCount(); MENUITEMINFO info; info.cbSize = sizeof (MENUITEMINFO); // must fill up this field info.fMask = MIIM_STATE | MIIM_ID;             // get the state and the id of the menu item for (UINT cout =0; cout < Sub_IndexMax; cout++) {  VERIFY(pSubMenu->GetMenuItemInfo(cout, &info,TRUE));  if (info.wID == m_ID)  {   pSubMenu->CheckMenuItem(m_ID,MF_BYCOMMAND | MF_CHECKED);  //打√   pSubMenu->EnableMenuItem(m_ID,MF_DISABLED | MF_GRAYED); //Disable menu   continue;  }   if (info.fState & MF_CHECKED)   pSubMenu->CheckMenuItem(cout, MF_UNCHECKED | MF_BYPOSITION);  if (info.fState & (MF_DISABLED | MF_GRAYED))   pSubMenu->EnableMenuItem(cout,MF_ENABLED | MF_BYPOSITION); }

说明:

pSubMenu = CMenu::FromHandle(GetSkinMenu(m_pMainWnd->m_hWnd))->GetSubMenu(1);

//作为CwinApp的成员函数,pSubMenu指向要处理的菜单项,GetSkinMenu为Skin类成员函数,在使用skin美化之后需要这样处理(具体请看上篇文章描述)

SkinMagic使用后按钮加自定义图标或菜单GetMneu返回NULL的解决方法

Sub_IndexMax = pSubMenu->GetMenuItemCount(); //调用Cemnu成员函数获取菜单项数量

info.fMask = MIIM_STATE | MIIM_ID; // 使其返回菜单状态及ID信息

//m_ID为菜单项的ID号
  if (info.wID == m_ID)
  {
   pSubMenu->CheckMenuItem(m_ID,MF_BYCOMMAND | MF_CHECKED); //打√
   pSubMenu->EnableMenuItem(m_ID,MF_DISABLED | MF_GRAYED); //变灰及取消选中状态
   continue;
  }

//每次选中任意菜单项前,先初始化所有菜单项的状态
  if (info.fState & MF_CHECKED)
   pSubMenu->CheckMenuItem(cout, MF_UNCHECKED | MF_BYPOSITION);
  if (info.fState & (MF_DISABLED | MF_GRAYED))
   pSubMenu->EnableMenuItem(cout,MF_ENABLED | MF_BYPOSITION);