/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Ansi)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringA(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
int index;
iContextMenu.GetCommandString(
idcmd,
(executeString ? ShellFolders.GCS.VERBA : ShellFolders.GCS.HELPTEXTA),
0,
bytes,
ShellFolders.MAX_PATH);
index = 0;
while (index < bytes.Length && bytes[index] != 0)
{
index++;
}
if (index < bytes.Length)
{
info = Encoding.Default.GetString(bytes, 0, index);
}
return(info);
}
/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Unicode)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringW(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
iContextMenu.GetCommandString(
idcmd,
(executeString ? GCS.VerbW : GCS.HelpTextW),
0,
bytes,
ShellApi.MaxPath);
int index = 0;
while (index < bytes.Length - 1 && (bytes[index] != 0 || bytes[index + 1] != 0))
{
index += 2;
}
if (index < bytes.Length - 1)
{
info = Encoding.Unicode.GetString(bytes, 0, index + 1);
}
return info;
}
/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Unicode)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringW(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
int index;
iContextMenu.GetCommandString(
idcmd,
(executeString ? ShellFolders.GCS.VERBW : ShellFolders.GCS.HELPTEXTW),
0,
bytes,
ShellFolders.MAX_PATH);
index = 0;
while (index < bytes.Length - 1 && (bytes[index] != 0 || bytes[index + 1] != 0))
{
index += 2;
}
if (index < bytes.Length - 1)
{
info = Encoding.Unicode.GetString(bytes, 0, index);
}
return(info);
}
/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Ansi)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringA(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
iContextMenu.GetCommandString(
idcmd,
(executeString ? GCS.VerbA : GCS.HelpTextA),
0,
bytes,
ShellApi.MaxPath);
int index = 0;
while (index < bytes.Length && bytes[index] != 0)
{
index++;
}
if (index < bytes.Length)
{
info = Encoding.Default.GetString(bytes, 0, index);
}
return info;
}
/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Unicode)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringW(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
iContextMenu.GetCommandString(
idcmd,
(executeString ? ShellAPI.GCS.VERBW : ShellAPI.GCS.HELPTEXTW),
0,
bytes,
ShellAPI.MAX_PATH);
int index = 0;
while (index < bytes.Length - 1 && (bytes[index] != 0 || bytes[index + 1] != 0))
{
index += 2;
}
if (index < bytes.Length - 1)
{
info = Encoding.Unicode.GetString(bytes, 0, index + 1);
}
return info;
}
/// <summary>
/// Retrieves the command string for a specific item from an iContextMenu (Ansi)
/// </summary>
/// <param name="iContextMenu">the IContextMenu to receive the string from</param>
/// <param name="idcmd">the id of the specific item</param>
/// <param name="executeString">indicating whether it should return an execute string or not</param>
/// <returns>if executeString is true it will return the executeString for the item,
/// otherwise it will return the help info string</returns>
public static string GetCommandStringA(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
string info = string.Empty;
byte[] bytes = new byte[256];
iContextMenu.GetCommandString(
idcmd,
(executeString ? ShellAPI.GCS.VERBA : ShellAPI.GCS.HELPTEXTA),
0,
bytes,
ShellAPI.MAX_PATH);
int index = 0;
while (index < bytes.Length && bytes[index] != 0)
{
index++;
}
if (index < bytes.Length)
{
info = Encoding.Default.GetString(bytes, 0, index);
}
return info;
}
private string GetCommandStringA(IContextMenu iContextMenu, uint idcmd, bool executeString)
{
var sb = new StringBuilder(MAX_PATH);
iContextMenu.GetCommandString(
idcmd,
executeString ? GCS.VERBA : GCS.HELPTEXTA,
0,
sb,
MAX_PATH);
return(sb.ToString());
}
public static string[] GetVerbs(IContextMenu cm, bool ansi = true)
{
IntPtr menu = IntPtr.Zero;
try
{
menu = CreateMenu();
// It isn't clear why short.MaxValue, but 0x7FFF is very used around the .NET!
int res = cm.QueryContextMenu(menu, 0, 0, short.MaxValue, 0);
if (res < 0)
{
Marshal.ThrowExceptionForHR(res);
}
//var sb = new StringBuilder(128);
int count = GetMenuItemCount(menu);
var verbs = new List <string>(count);
var handle = default(GCHandle);
try
{
var bytes = new byte[ansi ? 128 : 256];
handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
IntPtr ptr = handle.AddrOfPinnedObject();
for (int i = 0; i < count; i++)
{
uint id = GetMenuItemID(menu, i);
if (id == uint.MaxValue)
{
continue;
}
//GetMenuString(menu, (uint)i, sb, sb.Capacity, 0x00000400 /* MF_BYPOSITION */);
//string description = sb.ToString();
//sb.Clear();
res = cm.GetCommandString((UIntPtr)id, ansi ? (uint)0x00000002 /* GCS_VALIDATEA */ : 0x00000006 /* GCS_VALIDATEW */, IntPtr.Zero, ptr, bytes.Length);
if (res < 0)
{
continue;
}
if (res == 0)
{
res = cm.GetCommandString((UIntPtr)id, ansi ? (uint)0x00000000 /* GCS_VERBA */ : 0x00000004 /* GCS_VERBW */, IntPtr.Zero, ptr, bytes.Length);
if (res < 0)
{
Marshal.ThrowExceptionForHR(res);
}
verbs.Add(ansi ? Marshal.PtrToStringAnsi(ptr) : Marshal.PtrToStringUni(ptr));
}
}
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
return(verbs.ToArray());
}
finally
{
if (menu != IntPtr.Zero)
{
DestroyMenu(menu);
}
}
}