/// <summary>
/// Displays shell shortcut menu.
/// </summary>
/// <param name="idlw">IDLWrapper object that specifies shell item</param>
/// <param name="pntShow">location of the shortcut menu, in screen coordinates.</param>
/// <param name="hwndParent">Handle of parent control. Parent control will get focus, and receives the messages about drawing 'Send to' submenues.</param>
/// <param name="fCanRemove">set true to add 'remove this' menu item.</param>
/// <returns>
/// 0xFFFF user selected "Remove this item from menu".
/// 0xFFFE user selected "Open containing folder".
/// 0xFFFD If the user cancels the menu without making a selection, or if an error occurs
/// </returns>
public int Open(IDLWrapper idlw, Point pntShow, IntPtr hwndParent, bool fCanRemove)
{
const uint MF_STRING = 0x00000000;
const uint MF_SEPARATOR = 0x00000800;
const uint CMF_NORMAL = 0x00000000;
const uint CMF_EXTENDEDVERBS = 0x00000100;
const uint TPM_RETURNCMD = 0x0100;
const uint S_OK = 0;
const int COMMANDID_REMOVEITEM = 0xffff; // todo: move to const class
const int COMMANDID_OPENPARENT = 0xfffe;
const int COMMANDID_USERCANCEL = 0xfffd;
IShellFolder shellFolderParent = null;
try {
// get IShellFolder
IntPtr pIDLRelative;
if(idlw.Available && S_OK == PInvoke.SHBindToParent(idlw.PIDL, ExplorerGUIDs.IID_IShellFolder, out shellFolderParent, out pIDLRelative) && shellFolderParent != null) {
// get IContextMenu2
IntPtr[] pIDLs = new IntPtr[] { pIDLRelative };
uint reserved = 0;
object oUnk;
if(S_OK == shellFolderParent.GetUIObjectOf(IntPtr.Zero, (uint)pIDLs.Length, pIDLs, ExplorerGUIDs.IID_IContextMenu, ref reserved, out oUnk)) {
pIContextMenu2 = oUnk as IContextMenu2;
if(pIContextMenu2 != null) {
using(ContextMenu contextMenu = new ContextMenu()) {
int nResult = -1;
uint uFlags = CMF_NORMAL;
if((Control.ModifierKeys & Keys.Shift) == Keys.Shift) {
uFlags |= CMF_EXTENDEDVERBS;
}
pIContextMenu2.QueryContextMenu(contextMenu.Handle, 0, 1, 0xffff, uFlags);
// append optional menus
if(fCanRemove) {
// "Remove this item from menu"
PInvoke.AppendMenu(contextMenu.Handle, MF_SEPARATOR, IntPtr.Zero, null);
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_REMOVEITEM), QTUtility.ResMain[25]);
}
if(idlw.HasPath && idlw.Path.Length > 3 && idlw.IsFileSystem /*&& ( idlw.IsFileSystemFolder || idlw.IsFileSystemFile )*/ ) {
// "Open containing folder"
if(!fCanRemove) {
// separator
PInvoke.AppendMenu(contextMenu.Handle, MF_SEPARATOR, IntPtr.Zero, null);
}
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_OPENPARENT), QTUtility.ResMain[26]);
}
uint commandID = PInvoke.TrackPopupMenu(contextMenu.Handle, TPM_RETURNCMD, pntShow.X, pntShow.Y, 0, hwndParent, IntPtr.Zero);
if(commandID != 0) {
if(commandID == COMMANDID_REMOVEITEM) {
return COMMANDID_REMOVEITEM;
}
else if(commandID == COMMANDID_OPENPARENT) {
if(idlw.HasPath) {
try {
QTTabBarClass tabbar = InstanceManager.GetThreadTabBar();
if(tabbar != null) {
using(IDLWrapper idlwParent = idlw.GetParent()) {
if(idlwParent.Available) {
tabbar.OpenNewTabOrWindow(idlwParent);
}
}
}
// DesktopTool will handle it by itself
nResult = COMMANDID_OPENPARENT;
}
catch {
System.Media.SystemSounds.Asterisk.Play();
}
}
}
else {
CMINVOKECOMMANDINFO cmInfo = new CMINVOKECOMMANDINFO {
cbSize = Marshal.SizeOf(typeof(CMINVOKECOMMANDINFO)),
fMask = 0,
hwnd = hwndParent,
lpVerb = (IntPtr)((commandID - 1) & 0xFFFF),
lpParameters = IntPtr.Zero,
lpDirectory = IntPtr.Zero,
nShow = 1, //SW_SHOWNORMAL;
dwHotKey = 0,
hIcon = IntPtr.Zero
};
// returns S_OK if successful, or an error value otherwise.
// E_ABORT when user clicked "Open folder link target exists" of link file...( E_ABORT _HRESULT_TYPEDEF_(0x80004004L) )
nResult = pIContextMenu2.InvokeCommand(ref cmInfo);
}
}
else {
// 'if the user cancels the menu without making a selection, or if an error occurs' (MSDN)
nResult = COMMANDID_USERCANCEL;
}
return nResult;
}
}
}
}
// if failed to create shell context menu, show 'remove this' menu instead
if(fCanRemove) {
using(ContextMenu contextMenu = new ContextMenu()) {
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_REMOVEITEM), QTUtility.ResMain[25]);
if(COMMANDID_REMOVEITEM == PInvoke.TrackPopupMenu(contextMenu.Handle, TPM_RETURNCMD, pntShow.X, pntShow.Y, 0, hwndParent, IntPtr.Zero)) {
return COMMANDID_REMOVEITEM;
}
}
}
return COMMANDID_USERCANCEL;
}
catch {
}
finally {
if(shellFolderParent != null) {
Marshal.ReleaseComObject(shellFolderParent);
}
if(pIContextMenu2 != null) {
Marshal.ReleaseComObject(pIContextMenu2);
pIContextMenu2 = null;
}
}
return -1;
}
/// <summary>
/// Displays shell shortcut menu.
/// </summary>
/// <param name="idlw">IDLWrapper object that specifies shell item</param>
/// <param name="pntShow">location of the shortcut menu, in screen coordinates.</param>
/// <param name="hwndParent">Handle of parent control. Parent control will get focus, and receives the messages about drawing 'Send to' submenues.</param>
/// <param name="fCanRemove">set true to add 'remove this' menu item.</param>
/// <returns>
/// 0xFFFF user selected "Remove this item from menu".
/// 0xFFFE user selected "Open containing folder".
/// 0xFFFD If the user cancels the menu without making a selection, or if an error occurs
/// </returns>
public int Open(IDLWrapper idlw, Point pntShow, IntPtr hwndParent, bool fCanRemove)
{
const uint MF_STRING = 0x00000000;
const uint MF_SEPARATOR = 0x00000800;
const uint CMF_NORMAL = 0x00000000;
const uint CMF_EXTENDEDVERBS = 0x00000100;
const uint TPM_RETURNCMD = 0x0100;
const uint S_OK = 0;
const int COMMANDID_REMOVEITEM = 0xffff; // todo: move to const class
const int COMMANDID_OPENPARENT = 0xfffe;
const int COMMANDID_USERCANCEL = 0xfffd;
IShellFolder shellFolderParent = null;
try {
// get IShellFolder
IntPtr pIDLRelative;
if (idlw.Available && S_OK == PInvoke.SHBindToParent(idlw.PIDL, ExplorerGUIDs.IID_IShellFolder, out shellFolderParent, out pIDLRelative) && shellFolderParent != null)
{
// get IContextMenu2
IntPtr[] pIDLs = new IntPtr[] { pIDLRelative };
uint reserved = 0;
object oUnk;
if (S_OK == shellFolderParent.GetUIObjectOf(IntPtr.Zero, (uint)pIDLs.Length, pIDLs, ExplorerGUIDs.IID_IContextMenu, ref reserved, out oUnk))
{
pIContextMenu2 = oUnk as IContextMenu2;
if (pIContextMenu2 != null)
{
using (ContextMenu contextMenu = new ContextMenu()) {
int nResult = -1;
uint uFlags = CMF_NORMAL;
if ((Control.ModifierKeys & Keys.Shift) == Keys.Shift)
{
uFlags |= CMF_EXTENDEDVERBS;
}
pIContextMenu2.QueryContextMenu(contextMenu.Handle, 0, 1, 0xffff, uFlags);
// append optional menus
if (fCanRemove)
{
// "Remove this item from menu"
PInvoke.AppendMenu(contextMenu.Handle, MF_SEPARATOR, IntPtr.Zero, null);
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_REMOVEITEM), QTUtility.ResMain[25]);
}
if (idlw.HasPath && idlw.Path.Length > 3 && idlw.IsFileSystem /*&& ( idlw.IsFileSystemFolder || idlw.IsFileSystemFile )*/)
{
// "Open containing folder"
if (!fCanRemove)
{
// separator
PInvoke.AppendMenu(contextMenu.Handle, MF_SEPARATOR, IntPtr.Zero, null);
}
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_OPENPARENT), QTUtility.ResMain[26]);
}
uint commandID = PInvoke.TrackPopupMenu(contextMenu.Handle, TPM_RETURNCMD, pntShow.X, pntShow.Y, 0, hwndParent, IntPtr.Zero);
if (commandID != 0)
{
if (commandID == COMMANDID_REMOVEITEM)
{
return(COMMANDID_REMOVEITEM);
}
else if (commandID == COMMANDID_OPENPARENT)
{
if (idlw.HasPath)
{
try {
QTTabBarClass tabbar = InstanceManager.GetThreadTabBar();
if (tabbar != null)
{
using (IDLWrapper idlwParent = idlw.GetParent()) {
if (idlwParent.Available)
{
tabbar.OpenNewTabOrWindow(idlwParent);
}
}
}
// DesktopTool will handle it by itself
nResult = COMMANDID_OPENPARENT;
}
catch {
System.Media.SystemSounds.Asterisk.Play();
}
}
}
else
{
CMINVOKECOMMANDINFO cmInfo = new CMINVOKECOMMANDINFO {
cbSize = Marshal.SizeOf(typeof(CMINVOKECOMMANDINFO)),
fMask = 0,
hwnd = hwndParent,
lpVerb = (IntPtr)((commandID - 1) & 0xFFFF),
lpParameters = IntPtr.Zero,
lpDirectory = IntPtr.Zero,
nShow = 1, //SW_SHOWNORMAL;
dwHotKey = 0,
hIcon = IntPtr.Zero
};
// returns S_OK if successful, or an error value otherwise.
// E_ABORT when user clicked "Open folder link target exists" of link file...( E_ABORT _HRESULT_TYPEDEF_(0x80004004L) )
nResult = pIContextMenu2.InvokeCommand(ref cmInfo);
}
}
else
{
// 'if the user cancels the menu without making a selection, or if an error occurs' (MSDN)
nResult = COMMANDID_USERCANCEL;
}
return(nResult);
}
}
}
}
// if failed to create shell context menu, show 'remove this' menu instead
if (fCanRemove)
{
using (ContextMenu contextMenu = new ContextMenu()) {
PInvoke.AppendMenu(contextMenu.Handle, MF_STRING, new IntPtr(COMMANDID_REMOVEITEM), QTUtility.ResMain[25]);
if (COMMANDID_REMOVEITEM == PInvoke.TrackPopupMenu(contextMenu.Handle, TPM_RETURNCMD, pntShow.X, pntShow.Y, 0, hwndParent, IntPtr.Zero))
{
return(COMMANDID_REMOVEITEM);
}
}
}
return(COMMANDID_USERCANCEL);
}
catch {
}
finally {
if (shellFolderParent != null)
{
Marshal.ReleaseComObject(shellFolderParent);
}
if (pIContextMenu2 != null)
{
Marshal.ReleaseComObject(pIContextMenu2);
pIContextMenu2 = null;
}
}
return(-1);
}
