VC++ ListBox 响应鼠标右键消息

微软提供的 CListBox 只能响应鼠标双击消息，那如果要响应右键必须要继承 CListBox  这个，然后去响应 WM_RBUTTONUP 或 WM_RBUTTONDOWN 消息，在这个消息映射的函数里面就可以去写右键按下或弹起时的功能了。

图中的列表稍微自绘了一下，顺便也讲一下。调整行高是重写 MeasureItem 函数，如下

void CZZJListBox::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct) 
{
	// TODO: Add your code to determine the size of specified item
	lpMeasureItemStruct->itemHeight = 40;
}

void CZZJListBox::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct) 
{
	// TODO: Add your code to draw the specified item
	if (GetCount() < 1)
	{
		return;
	}

	CDC *pDC = CDC::FromHandle(lpDrawItemStruct->hDC);

	if (lpDrawItemStruct->itemState & ODS_SELECTED) //某一项被选中
	{
		pDC->FillSolidRect(&lpDrawItemStruct->rcItem, RGB(180, 230 ,30)); //用颜色填充这一项
	}
	else
	{
		//实现项之间灰白相间
		if (lpDrawItemStruct->itemID % 2 == 0)
		{
			pDC->FillSolidRect(&lpDrawItemStruct->rcItem, RGB(220, 220, 220));
		}
		else
		{
			pDC->FillSolidRect(&lpDrawItemStruct->rcItem, RGB(255, 255, 255));
		}
	}

	//绘制文字
	CString str;
	GetText(lpDrawItemStruct->itemID, str);
	lpDrawItemStruct->rcItem.left += 10;
	pDC->DrawText(str, &lpDrawItemStruct->rcItem, DT_VCENTER | DT_SINGLELINE);
}

下面正式讲响应鼠标右键消息。一般按下右键后，都希望同时选中鼠标指向的那一项，那么可以向当前鼠标的位置发送一个鼠标单击事件，那样就相当于鼠标在那个位置点击的左键，固然可以选中。代码如下

void CZZJListBox::OnRButtonUp(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	//如果列表中一项的没有，则不响应
	if (0 == GetCount())
	{
		CListBox::OnRButtonUp(nFlags, point);
		return;
	}

	//发送鼠标单击消息
	SendMessage(WM_LBUTTONDOWN, 0, MAKELPARAM(point.x, point.y));
	SendMessage(WM_LBUTTONUP, 0, MAKELPARAM(point.x, point.y));

	//得到当前选中项的字符串
	int curSel = GetCurSel();
	CString str;
	GetText(curSel, str);

	//弹出式菜单
	CMenu menu;
	menu.CreatePopupMenu();
	menu.AppendMenu(MF_STRING, IDM_ITEM1, str);
	menu.AppendMenu(MF_SEPARATOR, 0, _T(""));
	menu.AppendMenu(MF_STRING, IDM_ITEM2, _T("删除"));
	menu.AppendMenu(MF_STRING, IDM_ITEM3, _T("查看详情..."));
	ClientToScreen(&point);
	int nSel = menu.TrackPopupMenu(TPM_LEFTALIGN | TPM_RETURNCMD, point.x, point.y, this);
	menu.DestroyMenu();

	switch (nSel)
	{
	case IDM_ITEM2:
		DeleteString(curSel);
		break;
	case IDM_ITEM3:
		GetText(curSel, str);
		MessageBox(str);
		break;
	default:
		break;
	}
	
	CListBox::OnRButtonUp(nFlags, point);
}

最后，调用 InsertString 或 AddString 测试。

VC++ ListBox 响应鼠标右键消息,布布扣,bubuko.com

VC++ ListBox 响应鼠标右键消息

原文：http://blog.csdn.net/joneeky/article/details/23695717