public static extern int SendMessage(IntPtr hWnd, MSG Msg,
int wParam, ref TVITEMW lParam);
public static extern int SendMessage(IntPtr hWnd, MSG Msg,
int wParam, ref TVITEMW lParam);
void SetNodeImage(TreeNode node)
{
TVITEMW itemInfo = new TVITEMW();
ShellItem folder = (ShellItem)node.Tag;
// We need to set the images for the item by sending a
// TVM_SETITEMW message, as we need to set the overlay images,
// and the .Net TreeView API does not support overlays.
itemInfo.mask = TVIF.TVIF_IMAGE | TVIF.TVIF_SELECTEDIMAGE |
TVIF.TVIF_STATE;
itemInfo.hItem = node.Handle;
itemInfo.iImage = folder.GetSystemImageListIndex(
ShellIconType.SmallIcon, ShellIconFlags.OverlayIndex);
itemInfo.iSelectedImage = folder.GetSystemImageListIndex(
ShellIconType.SmallIcon, ShellIconFlags.OpenIcon);
itemInfo.state = (TVIS)(itemInfo.iImage >> 16);
itemInfo.stateMask = TVIS.TVIS_OVERLAYMASK;
User32.SendMessage(m_TreeView.Handle, MSG.TVM_SETITEMW,
0, ref itemInfo);
}
