win32api给右键菜单添加单选标志

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

一个窗口中是不能创建多个菜单的

SetMenu只能在没有菜单的窗口中把资源文件中定义的菜单添加进去

CreateWindow创建WD_CHILD风格的窗口是不能定义菜单项的

所以，木有这个api。

下面来介绍一下如何在win32 中实现点击右键d出菜单，步骤如下：1：先在头文件中中先定义三个IDM资源， #define IDM_AAA200 #define IDM_BBB201 #define IDM_CCC 2022.定义一个全局变量 HMENU hMenu3.在InitInstance中添加代码： hMenu=CreatePopupMenu()AppendMenu(hMenu,MF_STRING,IDM_AAA,_T("&AAA"))AppendMenu(hMenu,MF_SEPARATOR,0,NULL)AppendMenu(hMenu,MF_STRING,IDM_BBB,_T("&BBB"))AppendMenu(hMenu,MF_STRING,IDM_CCC,_T("&CCC"))4在WM_RBUTTONDOWN中添加响应代码POINT point；point.x=LOWORD(lParam)point.y=HIWORD(lParam)ClientToScreen(hWnd,&point)TrackPopupMenu(hMenu,TMP_RIGHTALIGN,point.x,point.y,0,hWnd,NULL)当单击某个菜单项时，还可以设置该项位选中状态。CheckMenuItem(hMenu,IDM_AAA,MF_CHECKED)

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