public unsafe object InvokeMember(string methodName, params object[] parameter)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS
{
rgvarg = IntPtr.Zero
};
try
{
if (NativeHtmlElement is UnsafeNativeMethods.IDispatch scriptObject)
{
Guid g = Guid.Empty;
string[] names = new string[] { methodName };
Ole32.DispatchID dispid = Ole32.DispatchID.UNKNOWN;
HRESULT hr = scriptObject.GetIDsOfNames(&g, names, 1, Kernel32.GetThreadLocale(), &dispid);
if (hr.Succeeded() && dispid != Ole32.DispatchID.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(
dispid,
ref g,
Kernel32.GetThreadLocale(),
NativeMethods.DISPATCH_METHOD,
dp,
retVals,
new NativeMethods.tagEXCEPINFO(),
null);
if (hr == HRESULT.S_OK)
{
retVal = retVals[0];
}
}
}
}
catch (Exception ex) when(!ClientUtils.IsSecurityOrCriticalException(ex))
{
}
finally
{
if (dp.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(dp.rgvarg, parameter.Length);
}
}
return(retVal);
}
public object InvokeMember(string methodName, params object[] parameter)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS
{
rgvarg = IntPtr.Zero
};
try
{
if (NativeHtmlElement is UnsafeNativeMethods.IDispatch scriptObject)
{
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\HtmlDocument.uex' path='docs/doc[@for="HtmlDocument.InvokeScript"]/*' />
public object InvokeScript(string scriptName, object[] args)
{
object retVal = null;
NativeMethods.tagDISPPARAMS dp = new NativeMethods.tagDISPPARAMS();
dp.rgvarg = IntPtr.Zero;
try
{
UnsafeNativeMethods.IDispatch scriptObject = this.NativeHtmlDocument2.GetScript() as UnsafeNativeMethods.IDispatch;
if (scriptObject != null)
{
Guid g = Guid.Empty;
string[] names = new string[] { scriptName };
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))
{
if (args != null)
{
// Reverse the arg order so that parms read naturally after IDispatch. (
Array.Reverse(args);
}
dp.rgvarg = (args == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(args);
dp.cArgs = (args == null) ? 0 : args.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, args.Length);
}
}
return(retVal);
}
public object InvokeMember(string methodName, params object[] parameter)
{
object obj2 = null;
System.Windows.Forms.NativeMethods.tagDISPPARAMS pDispParams = new System.Windows.Forms.NativeMethods.tagDISPPARAMS {
rgvarg = IntPtr.Zero
};
try
{
System.Windows.Forms.UnsafeNativeMethods.IDispatch nativeHtmlElement = this.NativeHtmlElement as System.Windows.Forms.UnsafeNativeMethods.IDispatch;
if (nativeHtmlElement != null)
{
Guid empty = Guid.Empty;
string[] rgszNames = new string[] { methodName };
int[] rgDispId = new int[] { -1 };
if (!System.Windows.Forms.NativeMethods.Succeeded(nativeHtmlElement.GetIDsOfNames(ref empty, rgszNames, 1, System.Windows.Forms.SafeNativeMethods.GetThreadLCID(), rgDispId)) || (rgDispId[0] == -1))
{
return(obj2);
}
if (parameter != null)
{
Array.Reverse(parameter);
}
pDispParams.rgvarg = (parameter == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(parameter);
pDispParams.cArgs = (parameter == null) ? 0 : parameter.Length;
pDispParams.rgdispidNamedArgs = IntPtr.Zero;
pDispParams.cNamedArgs = 0;
object[] pVarResult = new object[1];
if (nativeHtmlElement.Invoke(rgDispId[0], ref empty, System.Windows.Forms.SafeNativeMethods.GetThreadLCID(), 1, pDispParams, pVarResult, new System.Windows.Forms.NativeMethods.tagEXCEPINFO(), null) == 0)
{
obj2 = pVarResult[0];
}
}
return(obj2);
}
catch (Exception exception)
{
if (System.Windows.Forms.ClientUtils.IsSecurityOrCriticalException(exception))
{
throw;
}
}
finally
{
if (pDispParams.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(pDispParams.rgvarg, parameter.Length);
}
}
return(obj2);
}
public unsafe object InvokeScript(string scriptName, object[] args)
{
object retVal = null;
var dispParams = new Ole32.DISPPARAMS
{
rgvarg = IntPtr.Zero
};
try
{
if (NativeHtmlDocument2.GetScript() is UnsafeNativeMethods.IDispatch scriptObject)
{
Guid g = Guid.Empty;
string[] names = new string[] { scriptName };
Ole32.DispatchID dispid = Ole32.DispatchID.UNKNOWN;
HRESULT hr = scriptObject.GetIDsOfNames(&g, names, 1, Kernel32.GetThreadLocale(), &dispid);
if (hr.Succeeded() && dispid != Ole32.DispatchID.UNKNOWN)
{
if (args != null)
{
// Reverse the arg order so that parms read naturally after IDispatch. (
Array.Reverse(args);
}
dispParams.rgvarg = (args == null) ? IntPtr.Zero : HtmlDocument.ArrayToVARIANTVector(args);
dispParams.cArgs = (args == null) ? 0 : (uint)args.Length;
dispParams.rgdispidNamedArgs = IntPtr.Zero;
dispParams.cNamedArgs = 0;
object[] retVals = new object[1];
var pExcepInfo = new Ole32.EXCEPINFO();
hr = scriptObject.Invoke(
dispid,
&g,
Kernel32.GetThreadLocale(),
Oleaut32.DISPATCH.METHOD,
&dispParams,
retVals,
&pExcepInfo,
null);
if (hr == HRESULT.S_OK)
{
retVal = retVals[0];
}
}
}
}
catch (Exception ex) when(!ClientUtils.IsSecurityOrCriticalException(ex))
{
}
finally
{
if (dispParams.rgvarg != IntPtr.Zero)
{
HtmlDocument.FreeVARIANTVector(dispParams.rgvarg, args.Length);
}
}
return(retVal);
}
