private static BitmapSource GetSystemIconImage(HierarchyItemIdentity item)
{
IVsProject project = item.NestedHierarchy as IVsProject;
if (project != null)
{
string document;
if (ErrorHandler.Succeeded(project.GetMkDocument(item.NestedItemID, out document)))
{
SHFILEINFO shfi = new SHFILEINFO();
uint cbFileInfo = (uint)Marshal.SizeOf(shfi);
IntPtr systemImageList = NativeMethods.SHGetFileInfo(document, 0, ref shfi, cbFileInfo, SHGFI.SysIconIndex | SHGFI.SmallIcon);
if (systemImageList == IntPtr.Zero)
{
systemImageList = NativeMethods.SHGetFileInfo(document, 0, ref shfi, cbFileInfo, SHGFI.SysIconIndex | SHGFI.SmallIcon | SHGFI.UseFileAttributes);
}
if (systemImageList != IntPtr.Zero)
{
NativeImageList imageList = new NativeImageList(systemImageList);
return(imageList.GetImage(shfi.iIcon));
}
}
}
return(null);
}
private static BitmapSource GetImageFromHierarchy(HierarchyItemIdentity item, int iconIndexProperty, int iconHandleProperty)
{
int iconIndex;
IntPtr iconHandle;
IntPtr iconImageList;
BitmapSource iconBitmapSource = null;
IVsHierarchy iconSourceHierarchy = item.Hierarchy;
uint iconSourceItemid = item.ItemID;
if (item.IsNestedItem)
{
bool useNestedHierarchyIconList;
if (TryGetHierarchyProperty(item.Hierarchy, item.ItemID, (int)__VSHPROPID2.VSHPROPID_UseInnerHierarchyIconList, out useNestedHierarchyIconList) && useNestedHierarchyIconList)
{
iconSourceHierarchy = item.NestedHierarchy;
iconSourceItemid = item.NestedItemID;
}
}
if (TryGetHierarchyProperty(iconSourceHierarchy, iconSourceItemid, iconIndexProperty, out iconIndex) &&
TryGetHierarchyProperty(iconSourceHierarchy, VSConstants.VSITEMID_ROOT, (int)__VSHPROPID.VSHPROPID_IconImgList, UnboxAsIntPtr, out iconImageList))
{
NativeImageList imageList = new NativeImageList(iconImageList);
iconBitmapSource = imageList.GetImage(iconIndex);
}
else if (TryGetHierarchyProperty(item.Hierarchy, item.ItemID, iconHandleProperty, UnboxAsIntPtr, out iconHandle))
{
// Don't call DestroyIcon on iconHandle, as it's a shared resource owned by the hierarchy
iconBitmapSource = Imaging.CreateBitmapSourceFromHIcon(iconHandle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
iconBitmapSource.Freeze();
}
if (iconBitmapSource == null)
{
iconBitmapSource = GetSystemIconImage(item);
}
return(iconBitmapSource);
}
