win32下怎么获得tree view当前点击的节信息呀

[ayiyi0910]

如题, win32下怎么获得tree view当前点击的节信息呀, 注意我要的不是mfc中的方法

我在网上找到了下面的方法, 但是在单击节点时，获得的节点信息是单击某节点之前被选中节点的信息。求教一下怎么取得当前的节点


响应WM_NOTIFY消息，并判断；
单击鼠标左键，获得被选择的项：
if(((LPNMHDR)lParam)->code == NM_CLICK)
{
char Text[255]="";
memset(&tvi,0,sizeof(tvi));
Selected=(HTREEITEM)SendDlgItemMessage(hWnd,IDC_TREE1,TVM_GETNEXTITEM,TVGN_CARET,(LPARAM)Selected);//请求被选节点的句柄

if(Selected==NULL)
{
MessageBox(hWnd,"No Items in TreeView","Error",MB_OK|MB_ICONINFORMATION);
break;
}

tvi.mask= TVIF_TEXT;
tvi.pszText= Text;
tvi.cchTextMax=256;
tvi.hItem= Selected;//指向当前被选节点的句柄

if(SendDlgItemMessage(hWnd,IDC_TREE1,TVM_GETITEM,TVGN_CARET,(LPARAM)&tvi)) //取得所选的节点
{
if(tvi.cChildren==0 && strcmp(tvi.pszText,"Click Me!")==0)
{//如果被选节点的文字信息是“Click me!”,那么我们删除掉这个节点
MessageBox(hWnd,"Press OK to delete me!","Example",MB_OK|MB_ICONINFORMATION);
//删除所选择的节点
SendDlgItemMessage(hWnd,IDC_TREE1,TVM_DELETEITEM,TVGN_CARET,(LPARAM)tvi.hItem);
break;
}
}
}

[allenhiman]

TreeView_GetSelection Macro

--------------------------------------------------------------------------------

Retrieves the currently selected item in a tree-view control. You can use this macro, or you can explicitly send the TVM_GETNEXTITEM message with the TVGN_CARET flag.

Syntax

HTREEITEM TreeView_GetSelection(
HWND hwndTV
);

Parameters

hwndTV
Handle to the tree-view control.
Return Value

Returns the handle to the item if successful, or NULL otherwise.

[allenhiman]

HTREEITEM itemSel = TreeView_GetSelection（ hWndTree);

[Eleven]

case WM_NOTIFY:
		{
			LPNMHDR lpnmh = (LPNMHDR)lParam;
			if(NM_CLICK == lpnmh->code)
			{
				DWORD dwPos = GetMessagePos();
				POINT pt;
				pt.x = LOWORD(dwPos);
				pt.y = HIWORD(dwPos);
				ScreenToClient(lpnmh->hwndFrom, &pt);
				TVHITTESTINFO ht = {0};
				ht.pt = pt;
				ht.flags = TVHT_ONITEM;
				HTREEITEM hItem = TreeView_HitTest(lpnmh->hwndFrom, &ht);
				TVITEM ti = {0};
				ti.mask = TVIF_HANDLE | TVIF_TEXT;
				TCHAR buf[MAX_COUNT] = {0};
				ti.cchTextMax = MAX_COUNT;
				ti.pszText = buf;
				ti.hItem = hItem;
				TreeView_GetItem(lpnmh->hwndFrom, &ti);
				MessageBox(hWnd, buf, NULL, 0);
			}
		}
		break;

[Eleven]

http://blog.csdn.net/visualeleven/article/details/6650973

[ayiyi0910]

楼主能不能说的详细一点,谢谢了

TreeView_GetSelection应该是取得句柄, 然后我是不是用下面这样的方法呀

TV_ITEMW tvItem;
memset(&tvItem, 0, sizeof(tvItem));

tvi.hItem= Selected;//指向当前被选节点的句柄

if(SendDlgItemMessage(hWnd,IDC_TREE1,TVM_GETITEM,TVGN_CARET,(LPARAM)&tvi))

[allenhiman]

你看看吧 实际上MFC也是用那些宏发的消息 每个MFC的CTreeCtrl的类方法都有对应的宏定义 你只要能用MFC实现 win32翻译成那些"TreeView_" 开头的宏就可以了 或者发消息 我建议用宏

[ayiyi0910]

谢谢了, 这个问题弄好了