/// <include file='doc\OleMenuCommandService.uex' path='docs/doc[@for="OleMenuCommandService.IOleCommandTarget.Exec"]/*' />
/// <internalonly/>
/// <devdoc>
/// Executes the given command.
/// </devdoc>
int IOleCommandTarget.Exec(ref Guid guidGroup, uint nCmdId, uint nCmdExcept, IntPtr pIn, IntPtr vOut)
{
int hr = NativeMethods.S_OK;
MenuCommand cmd = FindCommand(guidGroup, (int)nCmdId, ref hr);
// If the command is not supported check if it can be handled by the parent command service
if ((cmd == null || !cmd.Supported) && _parentTarget != null)
{
return(_parentTarget.Exec(ref guidGroup, nCmdId, nCmdExcept, pIn, vOut));
}
else if (cmd != null)
{
object o = null;
if (pIn != (IntPtr)0)
{
o = Marshal.GetObjectForNativeVariant(pIn);
}
OleMenuCommand vsCmd = cmd as OleMenuCommand;
if (null == vsCmd)
{
cmd.Invoke(o);
}
else
{
vsCmd.Invoke(o, vOut);
}
}
return(hr);
}
/// <include file='doc\OleMenuCommandService.uex' path='docs/doc[@for="OleMenuCommandService.IOleCommandTarget.Exec"]/*' />
/// <internalonly/>
/// <devdoc>
/// Executes the given command.
/// </devdoc>
int IOleCommandTarget.Exec(ref Guid guidGroup, uint nCmdId, uint nCmdExcept, IntPtr pIn, IntPtr vOut)
{
const uint vsCmdOptQueryParameterList = 1;
int hr = NativeMethods.S_OK;
MenuCommand cmd = FindCommand(guidGroup, (int)nCmdId, ref hr);
// If the command is not supported check if it can be handled by the parent command service
if ((cmd == null || !cmd.Supported) && _parentTarget != null)
{
return(_parentTarget.Exec(ref guidGroup, nCmdId, nCmdExcept, pIn, vOut));
}
else if (cmd != null)
{
// Try to see if the command is a OleMenuCommand.
OleMenuCommand vsCmd = cmd as OleMenuCommand;
// Check the execution flags;
uint loWord = LoWord(nCmdExcept);
// If the command is not an OleMenuCommand, it can handle only the default
// execution.
if (((uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT != loWord) && (null == vsCmd))
{
return(NativeMethods.S_OK);
}
object o = null;
if (pIn != IntPtr.Zero)
{
o = Marshal.GetObjectForNativeVariant(pIn);
}
if (null == vsCmd)
{
cmd.Invoke(o);
}
else
{
switch (loWord)
{
// Default execution of the command: call the Invoke method
case (uint)OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT:
vsCmd.Invoke(o, vOut);
break;
case (uint)OLECMDEXECOPT.OLECMDEXECOPT_SHOWHELP:
// Check the hi word of the flags to see what kind of help
// is needed. We handle only the request for the parameters list.
if (vsCmdOptQueryParameterList == HiWord(nCmdExcept) && IntPtr.Zero != vOut)
{
// In this case vOut is a pointer to a VARIANT that will receive
// the parameters description.
if (!string.IsNullOrEmpty(vsCmd.ParametersDescription))
{
Marshal.GetNativeVariantForObject(vsCmd.ParametersDescription, vOut);
}
}
break;
default:
break;
}
}
}
return(hr);
}
