public static extern int RegisterDragDrop(
IntPtr hWnd,
Raccoom.Win32.IDropTarget IdropTgt);
/// <summary>
/// Do we have to add a dummy node (+ sign)
/// </summary>
protected virtual bool IsFolderWithChilds(Raccoom.Win32.ShellItem fi)
{
return _showAllShellObjects || (fi.IsFileSystem && fi.IsFolder && !fi.IsBrowsable);
}
protected virtual TreeNodePath CreateTreeNode(System.Windows.Forms.TreeNodeCollection parentCollection, TreeNodePath parentNode, Raccoom.Win32.ShellItem shellItem)
{
if (shellItem == null) throw new ArgumentNullException("shellItem");
//
TreeNodePath node = CreateTreeNode(parentCollection, parentNode, shellItem.Text, shellItem.Path, !shellItem.IsFolder, shellItem.HasSubfolder, !shellItem.IsFileSystem);
node.ImageIndex = shellItem.ImageIndex;
node.SelectedImageIndex = shellItem.SelectedImageIndex;
node.Tag = shellItem;
//
shellItem.ShellItemUpdated += delegate(object sender, EventArgs e)
{
node.Text = shellItem.Text;
node.ImageIndex = shellItem.ImageIndex;
node.SelectedImageIndex = shellItem.SelectedImageIndex;
};
return node;
}
/// <summary>
/// Popluates the MyComputer node
/// </summary>
/// <param name="folderItem"></param>
/// <param name="parentCollection"></param>
/// <param name="helper"></param>
protected virtual void FillMyComputer(Raccoom.Win32.ShellItem folderItem, System.Windows.Forms.TreeNodeCollection parentCollection, TreeViewFolderBrowserNodeFactory helper)
{
_rootCollection = parentCollection;
// get wmi logical disk's if we have to
System.IO.DriveInfo driveInfo;
//
folderItem.Expand(true, true, System.IntPtr.Zero);
//
foreach (Raccoom.Win32.ShellItem fi in folderItem.SubFolders)
{
// only File System shell objects ?
if (!_showAllShellObjects && !fi.IsFileSystem) continue;
//
if (DriveTypes != DriveTypes.All && fi.IsDisk)
{
driveInfo = new System.IO.DriveInfo(fi.Path);
//
switch (driveInfo.DriveType)
{
case System.IO.DriveType.CDRom:
if ((DriveTypes & DriveTypes.CompactDisc) == 0) continue;
break;
case System.IO.DriveType.Fixed:
if ((DriveTypes & DriveTypes.LocalDisk) == 0) continue;
break;
case System.IO.DriveType.Network:
if ((DriveTypes & DriveTypes.NetworkDrive) == 0) continue;
break;
case System.IO.DriveType.NoRootDirectory:
if ((DriveTypes & DriveTypes.NoRootDirectory) == 0) continue;
break;
case System.IO.DriveType.Ram:
if ((DriveTypes & DriveTypes.RAMDisk) == 0) continue;
break;
case System.IO.DriveType.Removable:
if ((DriveTypes & DriveTypes.RemovableDisk) == 0) continue;
break;
case System.IO.DriveType.Unknown:
if ((DriveTypes & DriveTypes.NoRootDirectory) == 0) continue;
break;
}
}
// create new node
TreeNodePath node = CreateTreeNode(parentCollection, null, fi);
}
}
public static bool GetIDropTarget(ShellItem item, out IntPtr dropTargetPtr, out Raccoom.Win32.IDropTarget dropTarget)
{
ShellItem parent = item.ParentItem != null ? item.ParentItem : item;
if (parent.ShellFolder.GetUIObjectOf(
IntPtr.Zero,
1,
new IntPtr[] { item.PIDLRel.Ptr },
ref ShellAPI.IID_IDropTarget,
IntPtr.Zero,
out dropTargetPtr) == ShellAPI.S_OK)
{
dropTarget =
(Raccoom.Win32.IDropTarget)Marshal.GetTypedObjectForIUnknown(dropTargetPtr, typeof(Raccoom.Win32.IDropTarget));
return true;
}
else
{
dropTarget = null;
dropTargetPtr = IntPtr.Zero;
return false;
}
}
