private List<DsObjectPickerItem> ProcessSelections(System.Runtime.InteropServices.ComTypes.IDataObject dataObj)
{
List<DsObjectPickerItem> selections = new List<DsObjectPickerItem>();
if (dataObj == null)
{
return selections;
}
STGMEDIUM stg = new STGMEDIUM();
stg.tymed = TYMED.TYMED_HGLOBAL;
stg.unionmember = IntPtr.Zero;
stg.pUnkForRelease = null;
FORMATETC fe = new FORMATETC();
if (!this.DesignMode)
{
fe.cfFormat = (short)System.Windows.Forms.DataFormats.GetFormat(CfstrDsopDsSelectionList).Id;
}
fe.ptd = IntPtr.Zero;
fe.dwAspect = DVASPECT.DVASPECT_CONTENT;
fe.lindex = -1;
fe.tymed = TYMED.TYMED_HGLOBAL;
dataObj.GetData(ref fe, out stg);
IntPtr pDsSL = UnsafeNativeMethods.GlobalLock(stg.unionmember);
try
{
IntPtr current = pDsSL;
int cnt = Marshal.ReadInt32(current);
if (cnt > 0)
{
current = (IntPtr)((int)current + (Marshal.SizeOf(typeof(uint)) * 2));
for (int i = 0; i < cnt; i++)
{
UnsafeNativeMethods.DsSelection selection =
(UnsafeNativeMethods.DsSelection)Marshal.PtrToStructure(current,
typeof(UnsafeNativeMethods.DsSelection));
Marshal.DestroyStructure(current, typeof(UnsafeNativeMethods.DsSelection));
current = (IntPtr)((int)current + Marshal.SizeOf(typeof(UnsafeNativeMethods.DsSelection)));
DsObjectPickerItem item = new DsObjectPickerItem();
item.Name = selection.pwzName;
item.Upn = GetUpnFromSelection(selection);
item.ClassName = selection.pwzClass.ToLowerInvariant();
item.Sid = GetSidFromUpn(item.Upn);
selections.Add(item);
}
}
}
finally
{
if (stg.unionmember != IntPtr.Zero)
{
UnsafeNativeMethods.GlobalUnlock(stg.unionmember);
}
UnsafeNativeMethods.ReleaseStgMedium(ref stg);
}
return selections;
}
private List <DsObjectPickerItem> ProcessSelections(System.Runtime.InteropServices.ComTypes.IDataObject dataObj)
{
List <DsObjectPickerItem> selections = new List <DsObjectPickerItem>();
if (dataObj == null)
{
return(selections);
}
STGMEDIUM stg = new STGMEDIUM();
stg.tymed = TYMED.TYMED_HGLOBAL;
stg.unionmember = IntPtr.Zero;
stg.pUnkForRelease = null;
FORMATETC fe = new FORMATETC();
if (!this.DesignMode)
{
fe.cfFormat = (short)System.Windows.Forms.DataFormats.GetFormat(CfstrDsopDsSelectionList).Id;
}
fe.ptd = IntPtr.Zero;
fe.dwAspect = DVASPECT.DVASPECT_CONTENT;
fe.lindex = -1;
fe.tymed = TYMED.TYMED_HGLOBAL;
dataObj.GetData(ref fe, out stg);
IntPtr pDsSL = UnsafeNativeMethods.GlobalLock(stg.unionmember);
try
{
IntPtr current = pDsSL;
int cnt = Marshal.ReadInt32(current);
if (cnt > 0)
{
current = (IntPtr)((int)current + (Marshal.SizeOf(typeof(uint)) * 2));
for (int i = 0; i < cnt; i++)
{
UnsafeNativeMethods.DsSelection selection =
(UnsafeNativeMethods.DsSelection)Marshal.PtrToStructure(current,
typeof(UnsafeNativeMethods.DsSelection));
Marshal.DestroyStructure(current, typeof(UnsafeNativeMethods.DsSelection));
current = (IntPtr)((int)current + Marshal.SizeOf(typeof(UnsafeNativeMethods.DsSelection)));
DsObjectPickerItem item = new DsObjectPickerItem();
item.Name = selection.pwzName;
item.Upn = GetUpnFromSelection(selection);
item.ClassName = selection.pwzClass.ToLowerInvariant();
item.Sid = GetSidFromUpn(item.Upn);
selections.Add(item);
}
}
}
finally
{
if (stg.unionmember != IntPtr.Zero)
{
UnsafeNativeMethods.GlobalUnlock(stg.unionmember);
}
UnsafeNativeMethods.ReleaseStgMedium(ref stg);
}
return(selections);
}
