cvi的tree控件使用

1、效果如下图

2、代码如下（图标的获取还是跟之前的方法一样）

ToolbarType toolbarHandle;


int CreateTree()
{
	char Tag[32];
	int bitmapID;
	int indexHead, indexOneClosed,indexOneOpen,indexSecond,itemIndex; 
	
	InsertTreeItem (panelHandle, PANEL_TREE, VAL_SIBLING, -1, VAL_NEXT,"根节点", "",Tag,-1 );//创建根节点
	
	GetCtrlDisplayBitmap(icoPanel, ICOPANEL_PICTURE_HEAD, 0, &bitmapID);
    indexHead = AddTreeImage (panelHandle,PANEL_TREE,bitmapID); // 添加头节点图标
    DiscardBitmap (bitmapID);
	
	//根节点展开与折叠时的图标
	SetTreeItemAttribute (panelHandle,PANEL_TREE,0, ATTR_IMAGE_INDEX, indexHead);  
	SetTreeItemAttribute (panelHandle,PANEL_TREE,0, ATTR_COLLAPSED_IMAGE_INDEX, indexHead); 
	
	//一级节点的图标 
	GetCtrlDisplayBitmap(icoPanel, ICOPANEL_PICTURE_ONECLOSE, 0, &bitmapID);
    indexOneClosed = AddTreeImage (panelHandle,PANEL_TREE,bitmapID); // Adds an image of closed folder to the tree control.
    DiscardBitmap (bitmapID);
	
	GetCtrlDisplayBitmap(icoPanel,ICOPANEL_PICTURE_ONEOPEN,0,&bitmapID);
    indexOneOpen = AddTreeImage (panelHandle,PANEL_TREE,bitmapID); // Adds an image of open folder to the tree control.
    DiscardBitmap (bitmapID);
	
	//二级节点图标
    GetCtrlDisplayBitmap(icoPanel,ICOPANEL_PICTURE_SECOND,0,&bitmapID);
    indexSecond = AddTreeImage (panelHandle,PANEL_TREE,bitmapID); // Adds an image of TestItem icon to the tree control.
    DiscardBitmap (bitmapID);   
	
	SetCtrlAttribute (panelHandle,PANEL_TREE,ATTR_SHOW_IMAGES, 1);
	
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 0, VAL_LAST, "一级节点", "",Tag,-1 );    //一级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexOneOpen);
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_COLLAPSED_IMAGE_INDEX, indexOneClosed);
	
	
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 1, VAL_LAST, "二级节点A", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 2, VAL_LAST, "三级节点A", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 2, VAL_LAST, "三级节点B", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 2, VAL_LAST, "三级节点C", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 

	
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 1, VAL_LAST, "二级节点B", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 
	
	itemIndex = InsertTreeItem (panelHandle, PANEL_TREE, VAL_CHILD, 6, VAL_LAST, "三级节点A2", "",Tag,  -1);    //二级节点
	SetTreeItemAttribute (panelHandle,PANEL_TREE,itemIndex, ATTR_IMAGE_INDEX, indexSecond); 

	return 0;
}