public void ShowContextMenu(Point pointScreen)
{
IntPtr intPtr = IntPtr.Zero;
IntPtr zero = IntPtr.Zero;
IntPtr zero2 = IntPtr.Zero;
IntPtr zero3 = IntPtr.Zero;
try
{
if (null == this._arrPIDLs)
{
this.ReleaseAll();
}
else if (!this.GetContextMenuInterfaces(this._oParentFolder, this._arrPIDLs, out zero))
{
this.ReleaseAll();
}
else
{
intPtr = ShellContextMenu.CreatePopupMenu();
int num = this._oContextMenu.QueryContextMenu(intPtr, 0u, 1u, 30000u, ShellContextMenu.CMF.EXPLORE | (((Control.ModifierKeys & Keys.Shift) != Keys.None) ? ShellContextMenu.CMF.EXTENDEDVERBS : ShellContextMenu.CMF.NORMAL));
Marshal.QueryInterface(zero, ref ShellContextMenu.IID_IContextMenu2, out zero2);
Marshal.QueryInterface(zero, ref ShellContextMenu.IID_IContextMenu3, out zero3);
this._oContextMenu2 = (ShellContextMenu.IContextMenu2)Marshal.GetTypedObjectForIUnknown(zero2, typeof(ShellContextMenu.IContextMenu2));
this._oContextMenu3 = (ShellContextMenu.IContextMenu3)Marshal.GetTypedObjectForIUnknown(zero3, typeof(ShellContextMenu.IContextMenu3));
uint num2 = ShellContextMenu.TrackPopupMenuEx(intPtr, ShellContextMenu.TPM.RETURNCMD, pointScreen.X, pointScreen.Y, base.Handle, IntPtr.Zero);
ShellContextMenu.DestroyMenu(intPtr);
intPtr = IntPtr.Zero;
if (num2 != 0u)
{
this.InvokeCommand(this._oContextMenu, num2, this._strParentFolder, pointScreen);
}
}
}
catch
{
throw;
}
finally
{
if (intPtr != IntPtr.Zero)
{
ShellContextMenu.DestroyMenu(intPtr);
}
if (zero != IntPtr.Zero)
{
Marshal.Release(zero);
}
if (zero2 != IntPtr.Zero)
{
Marshal.Release(zero2);
}
if (zero3 != IntPtr.Zero)
{
Marshal.Release(zero3);
}
this.ReleaseAll();
}
}
private ShellContextMenu.IShellFolder GetDesktopFolder()
{
IntPtr zero = IntPtr.Zero;
if (null == this._oDesktopFolder)
{
int num = ShellContextMenu.SHGetDesktopFolder(out zero);
if (0 != num)
{
throw new ShellContextMenuException("Failed to get the desktop shell folder");
}
this._oDesktopFolder = (ShellContextMenu.IShellFolder)Marshal.GetTypedObjectForIUnknown(zero, typeof(ShellContextMenu.IShellFolder));
}
return(this._oDesktopFolder);
}
private void InvokeContextMenuDefault(FileInfo[] arrFI)
{
this.ReleaseAll();
IntPtr intPtr = IntPtr.Zero;
IntPtr zero = IntPtr.Zero;
try
{
this._arrPIDLs = this.GetPIDLs(arrFI);
if (null == this._arrPIDLs)
{
this.ReleaseAll();
}
else if (!this.GetContextMenuInterfaces(this._oParentFolder, this._arrPIDLs, out zero))
{
this.ReleaseAll();
}
else
{
intPtr = ShellContextMenu.CreatePopupMenu();
int num = this._oContextMenu.QueryContextMenu(intPtr, 0u, 1u, 30000u, ShellContextMenu.CMF.DEFAULTONLY | (((Control.ModifierKeys & Keys.Shift) != Keys.None) ? ShellContextMenu.CMF.EXTENDEDVERBS : ShellContextMenu.CMF.NORMAL));
uint menuDefaultItem = (uint)ShellContextMenu.GetMenuDefaultItem(intPtr, false, 0u);
if (menuDefaultItem >= 1u)
{
this.InvokeCommand(this._oContextMenu, menuDefaultItem, arrFI[0].DirectoryName, Control.MousePosition);
}
ShellContextMenu.DestroyMenu(intPtr);
intPtr = IntPtr.Zero;
}
}
catch
{
throw;
}
finally
{
if (intPtr != IntPtr.Zero)
{
ShellContextMenu.DestroyMenu(intPtr);
}
this.ReleaseAll();
}
}
private ShellContextMenu.IShellFolder GetParentFolder(string folderName)
{
ShellContextMenu.IShellFolder result;
if (null == this._oParentFolder)
{
ShellContextMenu.IShellFolder desktopFolder = this.GetDesktopFolder();
if (null == desktopFolder)
{
result = null;
return(result);
}
IntPtr zero = IntPtr.Zero;
uint num = 0u;
ShellContextMenu.SFGAO sFGAO = (ShellContextMenu.SFGAO) 0u;
int num2 = desktopFolder.ParseDisplayName(IntPtr.Zero, IntPtr.Zero, folderName, ref num, out zero, ref sFGAO);
if (0 != num2)
{
result = null;
return(result);
}
IntPtr intPtr = Marshal.AllocCoTaskMem(524);
Marshal.WriteInt32(intPtr, 0, 0);
num2 = this._oDesktopFolder.GetDisplayNameOf(zero, ShellContextMenu.SHGNO.FORPARSING, intPtr);
StringBuilder stringBuilder = new StringBuilder(260);
ShellContextMenu.StrRetToBuf(intPtr, zero, stringBuilder, 260);
Marshal.FreeCoTaskMem(intPtr);
intPtr = IntPtr.Zero;
this._strParentFolder = stringBuilder.ToString();
IntPtr zero2 = IntPtr.Zero;
num2 = desktopFolder.BindToObject(zero, IntPtr.Zero, ref ShellContextMenu.IID_IShellFolder, out zero2);
Marshal.FreeCoTaskMem(zero);
if (0 != num2)
{
result = null;
return(result);
}
this._oParentFolder = (ShellContextMenu.IShellFolder)Marshal.GetTypedObjectForIUnknown(zero2, typeof(ShellContextMenu.IShellFolder));
}
result = this._oParentFolder;
return(result);
}
public int ShowContextMenu(Point pointScreen, string[] AddedItems)
{
IntPtr intPtr = IntPtr.Zero;
IntPtr zero = IntPtr.Zero;
IntPtr zero2 = IntPtr.Zero;
IntPtr zero3 = IntPtr.Zero;
int num = -1;
int result;
try
{
if (null == this._arrPIDLs)
{
this.ReleaseAll();
result = -2;
}
else if (!this.GetContextMenuInterfaces(this._oParentFolder, this._arrPIDLs, out zero))
{
this.ReleaseAll();
result = -2;
}
else
{
intPtr = ShellContextMenu.CreatePopupMenu();
int num2 = this._oContextMenu.QueryContextMenu(intPtr, 0u, 1u, 30000u, ShellContextMenu.CMF.EXPLORE | (((Control.ModifierKeys & Keys.Shift) != Keys.None) ? ShellContextMenu.CMF.EXTENDEDVERBS : ShellContextMenu.CMF.NORMAL));
Marshal.QueryInterface(zero, ref ShellContextMenu.IID_IContextMenu2, out zero2);
Marshal.QueryInterface(zero, ref ShellContextMenu.IID_IContextMenu3, out zero3);
this._oContextMenu2 = (ShellContextMenu.IContextMenu2)Marshal.GetTypedObjectForIUnknown(zero2, typeof(ShellContextMenu.IContextMenu2));
this._oContextMenu3 = (ShellContextMenu.IContextMenu3)Marshal.GetTypedObjectForIUnknown(zero3, typeof(ShellContextMenu.IContextMenu3));
for (int i = 0; i < AddedItems.Length; i++)
{
ShellAPI.InsertMenu(intPtr, (uint)i, ShellAPI.MFT.BYPOSITION, (uint)(30001 + i), AddedItems[i]);
}
ShellAPI.InsertMenu(intPtr, (uint)AddedItems.Length, ShellAPI.MFT.SEPARATOR | ShellAPI.MFT.BYPOSITION, (uint)(30001 + AddedItems.Length), "-");
uint num3 = ShellContextMenu.TrackPopupMenuEx(intPtr, ShellContextMenu.TPM.RETURNCMD, pointScreen.X, pointScreen.Y, base.Handle, IntPtr.Zero);
ShellContextMenu.DestroyMenu(intPtr);
intPtr = IntPtr.Zero;
if (AddedItems.Length > 0 && num3 >= 30001u && (ulong)num3 <= (ulong)((long)(AddedItems.Length - 1 + 30001)))
{
num = (int)(num3 - 30001u);
}
else if (num3 != 0u)
{
this.InvokeCommand(this._oContextMenu, num3, this._strParentFolder, pointScreen);
}
result = num;
}
}
catch
{
Console.WriteLine("Error in Context Menu generation");
result = -1;
}
finally
{
if (intPtr != IntPtr.Zero)
{
ShellContextMenu.DestroyMenu(intPtr);
}
if (zero != IntPtr.Zero)
{
Marshal.Release(zero);
}
if (zero2 != IntPtr.Zero)
{
Marshal.Release(zero2);
}
if (zero3 != IntPtr.Zero)
{
Marshal.Release(zero3);
}
this.ReleaseAll();
}
return(result);
}
