MFC中动态创建N级菜单以及响应事件

创建一个基于对话框的工程，工程名为CreateMenu

为该对话框增加一个文件菜单项和测试菜单项，如下图所示





测试菜单项至少要有一个子菜单项

在对话框属性中关联该菜单

在resource.h中增加一个ID_TESTMENU宏

#define ID_TESTMENU 5000

在对话框中添加一个Button按钮，建立消息映射，编辑代码如下

void CCreateMenuDlg::OnButton1()
{
// TODO: Add your control notification handler code here
char buf[2];
//获取顶级菜单
CMenu* pMenu=GetMenu();
//获取1级菜单
CMenu* pFileMenu=pMenu->GetSubMenu(0);
CMenu* pTestMenu=pMenu->GetSubMenu(1);
//添加2级菜单
if(pTestMenu->GetSafeHmenu()==NULL)
return;
//添加一个2级弹出菜单，将"文件"菜单项作为该菜单的子菜单
pTestMenu->AppendMenu(MF_POPUP,(UINT)pFileMenu->m_hMenu,"文件");
//添加一个2级弹出菜单，该菜单的子菜单为空
pTestMenu->AppendMenu(MF_POPUP,(UINT)pTestMenu->m_hMenu,"测试");
//添加10个2级普通菜单
for(UINT m_ID=1;m_ID<=10;m_ID++)
{
itoa(m_ID,buf,10);
pTestMenu->AppendMenu(MF_SEPARATOR);
pTestMenu->AppendMenu(
MF_STRING,m_ID+ID_TESTMENU,"2级菜单"+CString(buf));
}

//添加n级菜单
CMenu* pnMenu=pTestMenu->GetSubMenu(2);
pnMenu->AppendMenu(MF_POPUP,(UINT)pnMenu->m_hMenu,"3级菜单");
for(int i=0;i<5;i++)
{
pnMenu=pnMenu->GetSubMenu(0);
if(pnMenu==NULL) return;
itoa(i+4,buf,10);
pnMenu->AppendMenu(
MF_POPUP,(UINT)pnMenu->m_hMenu,buf + CString("级菜单"));
}
pnMenu->GetSubMenu(0)->AppendMenu(
MF_STRING,ID_TESTMENU,"9级菜单");
}

响应单击菜单的事件

添加OnCommand的消息映射，编辑代码如下

BOOL CCreateMenuDlg::OnCommand(WPARAM wParam, LPARAM lParam)
{
// TODO: Add your specialized code here and/or call the base class
UINT uMsg=LOWORD(wParam);
char buf[2];
if(uMsg==ID_TESTMENU)
{
MessageBox("HELLO!");
}
for(UINT i=1;i<=10;i++)
{
if(uMsg==ID_TESTMENU+i)
{
itoa(i,buf,10);
MessageBox("HELLO! " + CString(buf));
}
}
return CDialog::OnCommand(wParam, lParam);
}

转载来自：/article/5656688.html