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我是CMFCMenuButton控件的新手；这是我的代码OnInitDialog()：

// Load application list into menu button
m_ApplicationMenu = CreateMenu();   
m_MenuInfoSize = 2;
m_MenuInfo = new MENUITEMINFO[m_MenuInfoSize];
memset(m_MenuInfo, 0, sizeof(MENUITEMINFO) * m_MenuInfoSize);
UINT menuIndex = 0;
BOOL b; 
// 1st menu item
memset(m_MenuInfo + menuIndex, 0, sizeof(MENUITEMINFO));
m_MenuInfo[menuIndex].cbSize = sizeof(MENUITEMINFO);
m_MenuInfo[menuIndex].fMask = MIIM_ID | MIIM_STRING | MIIM_DATA;
m_MenuInfo[menuIndex].wID = menuIndex;
m_MenuInfo[menuIndex].dwTypeData = new WCHAR[10]; 
swprintf_s(m_MenuInfo[menuIndex].dwTypeData, 10, L"%s", L"A1");
m_MenuInfo[menuIndex].cch = wcslen(m_MenuInfo[menuIndex].dwTypeData) + 1;
b = InsertMenuItem(m_ApplicationMenu, menuIndex, TRUE, &(m_MenuInfo[menuIndex]));
menuIndex++;
// 2nd menu item
memset(&m_MenuInfo[menuIndex], 0, sizeof(MENUITEMINFO));
m_MenuInfo[menuIndex].cbSize = sizeof(MENUITEMINFO);
m_MenuInfo[menuIndex].fMask = MIIM_ID | MIIM_STRING | MIIM_DATA;
m_MenuInfo[menuIndex].wID = menuIndex;
m_MenuInfo[menuIndex].dwTypeData = new WCHAR[10]; 
swprintf_s(m_MenuInfo[menuIndex].dwTypeData, 10, L"%s", L"B2");
m_MenuInfo[menuIndex].cch = wcslen(m_MenuInfo[menuIndex].dwTypeData) + 1;
b = InsertMenuItem(m_ApplicationMenu, menuIndex, TRUE,  &(m_MenuInfo[menuIndex]));
menuIndex++;
// Attach menu to CMFCMenuButton
m_ApplicationList.m_bOSMenu = TRUE;
m_ApplicationList.m_bRightArrow = FALSE;
m_ApplicationList.m_bStayPressed = TRUE;
m_ApplicationList.m_bDefaultClick = FALSE;
m_ApplicationList.m_hMenu = m_ApplicationMenu;
    // Testing the constructed menu with the dialog's menu bar
::SetMenu(this->m_hWnd, m_ApplicationMenu);

当我运行该应用程序时，CMFCMenuButton单击它时会显示一个下拉菜单......但这两个项目是空的，没有文本也没有图像。

我添加了最后一行来测试我构建的菜单；并且这两个项目正确显示在菜单栏中。

我还尝试使用从资源编辑器创建的菜单。它在菜单栏中显示得很好，但在 中CMFCMenuButton，又出现了空白。

我错过了什么？

4

1 回答 1

2

尝试

m_ApplicationMenu = CreatePopupMenu();

另外，如果你想在点击事件中获得of ，你最好使用1作为第一个。因为：menuIndexm_nMenuResultCMFCMenuButton

CMFCMenuButton::m_nMenuResult

一个整数，指示用户从弹出菜单中选择的项目。

如果用户取消菜单而未进行选择或发生错误，则此成员变量的值为零。

于 2013-03-25T09:01:40.827 回答