如何给对话框添加菜单栏

2025-10-07 13:48:26

1、新建菜单资源

2、添加到对话框里

3、手动在对话框CPP文件的MESSAGE_MAP里添加ON_WM_INITMENUPOPUP()消息

4、手动添加消息响应函数 OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu)

5、把下面函数里的东西加上就行了,这些东西都是单文档里的。

void CXXXXXDlg::OnInitMenuPopup(CMenu *pPopupMenu, UINT nIndex, BOOL bSysMenu)

{

ASSERT(pPopupMenu != NULL);

// Check the enabled state of various menu items.

CCmdUI state;

state.m_pMenu = pPopupMenu;

ASSERT(state.m_pOther == NULL);

ASSERT(state.m_pParentMenu == NULL);

// Determine if menu is popup in top-level menu and set m_pOther to

// it if so (m_pParentMenu == NULL indicates that it is secondary popup).

HMENU hParentMenu;

if (AfxGetThreadState()->m_hTrackingMenu == pPopupMenu->m_hMenu)

{

state.m_pParentMenu= pPopupMenu; // Parent == child for tracking popup.

}

else if ((hParentMenu = ::GetMenu(m_hWnd)) != NULL)

{

CWnd* pParent = this;

// Child windows don't have menus--need to go to the top!

if (pParent != NULL && (hParentMenu = ::GetMenu(pParent->m_hWnd)) != NULL)

{

int nIndexMax = ::GetMenuItemCount(hParentMenu);

for (int nIndex = 0; nIndex < nIndexMax; nIndex++)

{

if (::GetSubMenu(hParentMenu, nIndex) == pPopupMenu->m_hMenu)

{

// When popup is found, m_pParentMenu is containing menu.

state.m_pParentMenu = CMenu::FromHandle(hParentMenu);

break;

}

}

}

}

state.m_nIndexMax = pPopupMenu->GetMenuItemCount();

for (state.m_nIndex = 0; state.m_nIndex < state.m_nIndexMax;state.m_nIndex++)

{

state.m_nID = pPopupMenu->GetMenuItemID(state.m_nIndex);

if (state.m_nID == 0)

{

continue; // Menu separator or invalid cmd - ignore it.

}

ASSERT(state.m_pOther == NULL);

ASSERT(state.m_pMenu != NULL);

if (state.m_nID == (UINT)-1)

{

// Possibly a popup menu, route to first item of that popup.

state.m_pSubMenu = pPopupMenu->GetSubMenu(state.m_nIndex);

if (state.m_pSubMenu == NULL

|| (state.m_nID = state.m_pSubMenu->GetMenuItemID(0)) == 0

|| state.m_nID == (UINT)-1)

{

continue; // First item of popup can't be routed to.

}

state.DoUpdate(this, TRUE); // Popups are never auto disabled.

}

else

{

// Normal menu item.

// Auto enable/disable if frame window has m_bAutoMenuEnable

// set and command is _not_ a system command.

state.m_pSubMenu = NULL;

state.DoUpdate(this, FALSE);

}

// Adjust for menu deletions and additions.

UINT nCount = pPopupMenu->GetMenuItemCount();

if (nCount < state.m_nIndexMax)

{

state.m_nIndex -= (state.m_nIndexMax - nCount);

while (state.m_nIndex < nCount

&& pPopupMenu->GetMenuItemID(state.m_nIndex) == state.m_nID)

{

state.m_nIndex++;

}

}

state.m_nIndexMax = nCount;

}

}

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