internal object GetPropertyValue(object component, string propertyName, ref bool succeeded)
{
if (!(component is UnsafeNativeMethods.IDispatch))
{
return(null);
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch)component;
string[] rgszNames = new string[] { propertyName };
int[] rgDispId = new int[] { -1 };
Guid empty = Guid.Empty;
try
{
int hr = dispatch.GetIDsOfNames(ref empty, rgszNames, 1, SafeNativeMethods.GetThreadLCID(), rgDispId);
if ((rgDispId[0] == -1) || System.Windows.Forms.NativeMethods.Failed(hr))
{
return(null);
}
}
catch
{
return(null);
}
return(this.GetPropertyValue(component, rgDispId[0], ref succeeded));
}
internal object GetPropertyValue(object component, string propertyName, ref bool succeeded)
{
if (!(component is UnsafeNativeMethods.IDispatch))
{
return(null);
}
UnsafeNativeMethods.IDispatch iDispatch = (UnsafeNativeMethods.IDispatch)component;
string[] names = new string[] { propertyName };
int[] dispid = new int[1];
dispid[0] = NativeMethods.DISPID_UNKNOWN;
Guid g = Guid.Empty;
try
{
int hr = iDispatch.GetIDsOfNames(ref g, names, 1, SafeNativeMethods.GetThreadLCID(), dispid);
if (dispid[0] == NativeMethods.DISPID_UNKNOWN || NativeMethods.Failed(hr))
{
return(null);
}
}
catch
{
return(null);
}
return(GetPropertyValue(component, dispid[0], ref succeeded));
}
internal unsafe object GetPropertyValue(object component, string propertyName, ref bool succeeded)
{
if (!(component is UnsafeNativeMethods.IDispatch))
{
return(null);
}
UnsafeNativeMethods.IDispatch iDispatch = (UnsafeNativeMethods.IDispatch)component;
string[] names = new string[] { propertyName };
Ole32.DispatchID dispid = Ole32.DispatchID.UNKNOWN;
Guid g = Guid.Empty;
try
{
HRESULT hr = iDispatch.GetIDsOfNames(&g, names, 1, Kernel32.GetThreadLocale(), &dispid);
if (dispid == Ole32.DispatchID.UNKNOWN || !hr.Succeeded())
{
return(null);
}
return(GetPropertyValue(component, dispid, ref succeeded));
}
catch
{
return(null);
}
}
public object InvokeMember(string methodName, params object[] parameter)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS();
dp.rgvarg = IntPtr.Zero;
try
{
UnsafeNativeMethods.IDispatch scriptObject = this.NativeHtmlElement as UnsafeNativeMethods.IDispatch;
if (scriptObject != null)
{
Guid g = Guid.Empty;
string[] names = new string[] { methodName };
int[] dispids = new int[] { NativeMethods.ActiveX.DISPID_UNKNOWN };
int hr = scriptObject.GetIDsOfNames(ref g, names, 1,
SafeNativeMethods.GetThreadLCID(), dispids);
if (NativeMethods.Succeeded(hr) && (dispids[0] != NativeMethods.ActiveX.DISPID_UNKNOWN))
{
// Reverse the arg order below so that parms are read properly thru IDispatch. (
if (parameter != null)
{
// Reverse the parm order so that they read naturally after IDispatch. (
Array.Reverse(parameter);
}
dp.rgvarg = (parameter == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(parameter);
dp.cArgs = (parameter == null) ? 0 : parameter.Length;
dp.rgdispidNamedArgs = IntPtr.Zero;
dp.cNamedArgs = 0;
object[] retVals = new object[1];
hr = scriptObject.Invoke(dispids[0], ref g, SafeNativeMethods.GetThreadLCID(),
NativeMethods.DISPATCH_METHOD, dp,
retVals, new NativeMethods.tagEXCEPINFO(), null);
if (hr == NativeMethods.S_OK)
{
retVal = retVals[0];
}
}
}
}
catch (Exception ex)
{
if (ClientUtils.IsSecurityOrCriticalException(ex))
{
throw;
}
}
finally
{
if (dp.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(dp.rgvarg, parameter.Length);
}
}
return(retVal);
}
/// <include file='doc\COM2TypeInfoProcessor.uex' path='docs/doc[@for="Com2TypeInfoProcessor.GetNameDispId"]/*' />
/// <devdoc>
/// Retrieve the dispid of the property that we are to use as the name
/// member. In this case, the grid will put parens around the name.
/// </devdoc>
public static int GetNameDispId(UnsafeNativeMethods.IDispatch obj)
{
int dispid = NativeMethods.DISPID_UNKNOWN;
string[] names = null;
ComNativeDescriptor cnd = ComNativeDescriptor.Instance;
bool succeeded = false;
// first try to find one with a valid value
cnd.GetPropertyValue(obj, "__id", ref succeeded);
if (succeeded)
{
names = new string[] { "__id" };
}
else
{
cnd.GetPropertyValue(obj, NativeMethods.ActiveX.DISPID_Name, ref succeeded);
if (succeeded)
{
dispid = NativeMethods.ActiveX.DISPID_Name;
}
else
{
cnd.GetPropertyValue(obj, "Name", ref succeeded);
if (succeeded)
{
names = new string[] { "Name" };
}
}
}
// now get the dispid of the one that worked...
if (names != null)
{
int[] pDispid = new int[] { NativeMethods.DISPID_UNKNOWN };
Guid g = Guid.Empty;
int hr = obj.GetIDsOfNames(ref g, names, 1, SafeNativeMethods.GetThreadLCID(), pDispid);
if (NativeMethods.Succeeded(hr))
{
dispid = pDispid[0];
}
}
return(dispid);
}
/// <summary>
/// Retrieve the dispid of the property that we are to use as the name
/// member. In this case, the grid will put parens around the name.
/// </summary>
public unsafe static Ole32.DispatchID GetNameDispId(UnsafeNativeMethods.IDispatch obj)
{
Ole32.DispatchID dispid = Ole32.DispatchID.UNKNOWN;
string[] names = null;
ComNativeDescriptor cnd = ComNativeDescriptor.Instance;
bool succeeded = false;
// first try to find one with a valid value
cnd.GetPropertyValue(obj, "__id", ref succeeded);
if (succeeded)
{
names = new string[] { "__id" };
}
else
{
cnd.GetPropertyValue(obj, Ole32.DispatchID.Name, ref succeeded);
if (succeeded)
{
dispid = Ole32.DispatchID.Name;
}
else
{
cnd.GetPropertyValue(obj, "Name", ref succeeded);
if (succeeded)
{
names = new string[] { "Name" };
}
}
}
// now get the dispid of the one that worked...
if (names != null)
{
Ole32.DispatchID pDispid = Ole32.DispatchID.UNKNOWN;
Guid g = Guid.Empty;
HRESULT hr = obj.GetIDsOfNames(&g, names, 1, Kernel32.GetThreadLocale(), &pDispid);
if (hr.Succeeded())
{
dispid = pDispid;
}
}
return(dispid);
}
public static int GetNameDispId(UnsafeNativeMethods.IDispatch obj)
{
int num = -1;
string[] rgszNames = null;
ComNativeDescriptor instance = ComNativeDescriptor.Instance;
bool succeeded = false;
instance.GetPropertyValue(obj, "__id", ref succeeded);
if (succeeded)
{
rgszNames = new string[] { "__id" };
}
else
{
instance.GetPropertyValue(obj, -800, ref succeeded);
if (succeeded)
{
num = -800;
}
else
{
instance.GetPropertyValue(obj, "Name", ref succeeded);
if (succeeded)
{
rgszNames = new string[] { "Name" };
}
}
}
if (rgszNames != null)
{
int[] rgDispId = new int[] { -1 };
Guid empty = Guid.Empty;
if (System.Windows.Forms.NativeMethods.Succeeded(obj.GetIDsOfNames(ref empty, rgszNames, 1, SafeNativeMethods.GetThreadLCID(), rgDispId)))
{
num = rgDispId[0];
}
}
return(num);
}