在菜单中添加复选标记用CheckMenuItem函数
CheckMenuItem函数原型:
DWORD
WINAPI
CheckMenuItem(
_In_ HMENU hMenu, //菜单句柄
_In_ UINT uIDCheckItem, //菜单ID
_In_ UINT uCheck); //复选标记MF_CHECKED(添加复选标记)和MF_UNCHECKED(取消复选标记)
实例:
LRESULT MyWnd::OnCommand(DWORD dwID, DWORD dwEnter, HWND hCtrlWnd) { HMENU hMenu = GetMenu(m_hWnd); //获得窗口菜单句柄 HMENU hItem = GetSubMenu(hMenu, 1);//获得第二个子菜单项的句柄 switch (dwID) { case ID_TOOBAR_MENU: { //判断是否有复选标记,如果有就取消复选标记,没有就添加复选标记 if (CheckMenuItem(hItem, ID_TOOBAR_MENU, MF_CHECKED)&MF_CHECKED) CheckMenuItem(hItem, ID_TOOBAR_MENU, MF_UNCHECKED); break; } case ID_STAT_MENU: { if (CheckMenuItem(hItem, ID_STAT_MENU, MF_CHECKED)&MF_CHECKED) CheckMenuItem(hItem, ID_STAT_MENU, MF_UNCHECKED); break; } case ID_MENU_MENU: { if (CheckMenuItem(hItem, ID_MENU_MENU, MF_CHECKED)&MF_CHECKED) CheckMenuItem(hItem, ID_MENU_MENU, MF_UNCHECKED); break; } } return 0; }
在菜单中添加单选标记用CheckMenuRadioItem函数
CheckMenuRadioItem函数原型:
BOOL
WINAPI
CheckMenuRadioItem(
_In_ HMENU hmenu, //菜单句柄
_In_ UINT first, //第一个菜单项ID
_In_ UINT last, //最后一个菜单项ID
_In_ UINT check, //要标记的菜单项ID
_In_ UINT flags); //单选标记MF_BYCOMMAND
实例:
//菜单ID号要是连续的Id号
#define ID_TOOBAR_MENU 40027
#define ID_STAT_MENU 40028
#define ID_MENU_MENU 40029
LRESULT MyWnd::OnCommand(DWORD dwID, DWORD dwEnter, HWND hCtrlWnd) { HMENU hMenu = GetMenu(m_hWnd); HMENU hItem = GetSubMenu(hMenu, 1); switch (dwID) { case ID_TOOBAR_MENU: { CheckMenuRadioItem(hItem, ID_TOOBAR_MENU, ID_MENU_MENU, ID_TOOBAR_MENU, MF_BYCOMMAND); break; } case ID_STAT_MENU: { CheckMenuRadioItem(hItem, ID_TOOBAR_MENU, ID_MENU_MENU, ID_STAT_MENU, MF_BYCOMMAND); break; } case ID_MENU_MENU: { CheckMenuRadioItem(hItem, ID_TOOBAR_MENU, ID_MENU_MENU, ID_MENU_MENU, MF_BYCOMMAND); break; } } return 0; }
效果图: