internal int GetPropertyValue(object component, int dispid, object[] retval)
{
if (!(component is UnsafeNativeMethods.IDispatch))
{
return(-2147467262);
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch)component;
try
{
int scode;
Guid empty = Guid.Empty;
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
try
{
scode = dispatch.Invoke(dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 2, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), retval, pExcepInfo, null);
if (scode == -2147352567)
{
scode = pExcepInfo.scode;
}
}
catch (ExternalException exception)
{
scode = exception.ErrorCode;
}
return(scode);
}
catch
{
}
return(-2147467259);
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
object instance = context.Instance;
if (Marshal.IsComObject(instance) && (instance is UnsafeNativeMethods.IDispatch))
{
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch)instance;
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
Guid empty = Guid.Empty;
dispatch.Invoke(-552, ref empty, SafeNativeMethods.GetThreadLCID(), 1, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), null, pExcepInfo, null);
}
return(value);
}
public object GetNativeValue(object component)
{
if (component == null)
{
return(null);
}
if (component is ICustomTypeDescriptor)
{
component = ((ICustomTypeDescriptor)component).GetPropertyOwner(this);
}
if (((component == null) || !Marshal.IsComObject(component)) || !(component is UnsafeNativeMethods.IDispatch))
{
return(null);
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch)component;
object[] pVarResult = new object[1];
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
Guid empty = Guid.Empty;
int errorCode = dispatch.Invoke(this.dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 2, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), pVarResult, pExcepInfo, null);
switch (errorCode)
{
case 0:
case 1:
if ((pVarResult[0] != null) && !Convert.IsDBNull(pVarResult[0]))
{
this.lastValue = pVarResult[0];
break;
}
this.lastValue = null;
break;
case -2147352567:
return(null);
default:
throw new ExternalException(System.Windows.Forms.SR.GetString("DispInvokeFailed", new object[] { "GetValue", errorCode }), errorCode);
}
return(this.lastValue);
}
public override void SetValue(object component, object value)
{
if (this.readOnly)
{
throw new NotSupportedException(System.Windows.Forms.SR.GetString("COM2ReadonlyProperty", new object[] { this.Name }));
}
if (component is ICustomTypeDescriptor)
{
component = ((ICustomTypeDescriptor)component).GetPropertyOwner(this);
}
if (((component != null) && Marshal.IsComObject(component)) && (component is UnsafeNativeMethods.IDispatch))
{
if (this.valueConverter != null)
{
bool cancelSet = false;
value = this.valueConverter.ConvertManagedToNative(value, this, ref cancelSet);
if (cancelSet)
{
return;
}
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch)component;
System.Windows.Forms.NativeMethods.tagDISPPARAMS pDispParams = new System.Windows.Forms.NativeMethods.tagDISPPARAMS();
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
pDispParams.cArgs = 1;
pDispParams.cNamedArgs = 1;
int[] numArray = new int[] { -3 };
GCHandle handle = GCHandle.Alloc(numArray, GCHandleType.Pinned);
try
{
pDispParams.rgdispidNamedArgs = Marshal.UnsafeAddrOfPinnedArrayElement(numArray, 0);
IntPtr ptr = Marshal.AllocCoTaskMem(0x10);
SafeNativeMethods.VariantInit(new HandleRef(null, ptr));
Marshal.GetNativeVariantForObject(value, ptr);
pDispParams.rgvarg = ptr;
try
{
Guid empty = Guid.Empty;
int dwMessageId = dispatch.Invoke(this.dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 4, pDispParams, null, pExcepInfo, new IntPtr[1]);
string message = null;
if ((dwMessageId == -2147352567) && (pExcepInfo.scode != 0))
{
dwMessageId = pExcepInfo.scode;
message = pExcepInfo.bstrDescription;
}
switch (dwMessageId)
{
case -2147467260:
case -2147221492:
return;
case 0:
case 1:
this.OnValueChanged(component, EventArgs.Empty);
this.lastValue = value;
return;
}
if (dispatch is UnsafeNativeMethods.ISupportErrorInfo)
{
empty = typeof(UnsafeNativeMethods.IDispatch).GUID;
if (System.Windows.Forms.NativeMethods.Succeeded(((UnsafeNativeMethods.ISupportErrorInfo)dispatch).InterfaceSupportsErrorInfo(ref empty)))
{
UnsafeNativeMethods.IErrorInfo errorInfo = null;
UnsafeNativeMethods.GetErrorInfo(0, ref errorInfo);
if ((errorInfo != null) && System.Windows.Forms.NativeMethods.Succeeded(errorInfo.GetDescription(null)))
{
message = pBstrDescription;
}
}
}
else if (message == null)
{
StringBuilder lpBuffer = new StringBuilder(0x100);
if (SafeNativeMethods.FormatMessage(0x1200, System.Windows.Forms.NativeMethods.NullHandleRef, dwMessageId, CultureInfo.CurrentCulture.LCID, lpBuffer, 0xff, System.Windows.Forms.NativeMethods.NullHandleRef) == 0)
{
message = string.Format(CultureInfo.CurrentCulture, System.Windows.Forms.SR.GetString("DispInvokeFailed", new object[] { "SetValue", dwMessageId }), new object[0]);
}
else
{
message = lpBuffer.ToString();
while (((message.Length > 0) && (message[message.Length - 1] == '\n')) || (message[message.Length - 1] == '\r'))
{
message = message.Substring(0, message.Length - 1);
}
}
}
throw new ExternalException(message, dwMessageId);
}
finally
{
SafeNativeMethods.VariantClear(new HandleRef(null, ptr));
Marshal.FreeCoTaskMem(ptr);
}
}
finally
{
handle.Free();
}
}
}
internal int GetPropertyValue(object component, int dispid, object[] retval)
{
if (!(component is UnsafeNativeMethods.IDispatch))
{
return -2147467262;
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch) component;
try
{
int scode;
Guid empty = Guid.Empty;
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
try
{
scode = dispatch.Invoke(dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 2, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), retval, pExcepInfo, null);
if (scode == -2147352567)
{
scode = pExcepInfo.scode;
}
}
catch (ExternalException exception)
{
scode = exception.ErrorCode;
}
return scode;
}
catch
{
}
return -2147467259;
}
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
object instance = context.Instance;
if (Marshal.IsComObject(instance) && (instance is UnsafeNativeMethods.IDispatch))
{
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch) instance;
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
Guid empty = Guid.Empty;
dispatch.Invoke(-552, ref empty, SafeNativeMethods.GetThreadLCID(), 1, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), null, pExcepInfo, null);
}
return value;
}
public override void SetValue(object component, object value)
{
if (this.readOnly)
{
throw new NotSupportedException(System.Windows.Forms.SR.GetString("COM2ReadonlyProperty", new object[] { this.Name }));
}
if (component is ICustomTypeDescriptor)
{
component = ((ICustomTypeDescriptor) component).GetPropertyOwner(this);
}
if (((component != null) && Marshal.IsComObject(component)) && (component is UnsafeNativeMethods.IDispatch))
{
if (this.valueConverter != null)
{
bool cancelSet = false;
value = this.valueConverter.ConvertManagedToNative(value, this, ref cancelSet);
if (cancelSet)
{
return;
}
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch) component;
System.Windows.Forms.NativeMethods.tagDISPPARAMS pDispParams = new System.Windows.Forms.NativeMethods.tagDISPPARAMS();
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
pDispParams.cArgs = 1;
pDispParams.cNamedArgs = 1;
int[] numArray = new int[] { -3 };
GCHandle handle = GCHandle.Alloc(numArray, GCHandleType.Pinned);
try
{
pDispParams.rgdispidNamedArgs = Marshal.UnsafeAddrOfPinnedArrayElement(numArray, 0);
IntPtr ptr = Marshal.AllocCoTaskMem(0x10);
SafeNativeMethods.VariantInit(new HandleRef(null, ptr));
Marshal.GetNativeVariantForObject(value, ptr);
pDispParams.rgvarg = ptr;
try
{
Guid empty = Guid.Empty;
int dwMessageId = dispatch.Invoke(this.dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 4, pDispParams, null, pExcepInfo, new IntPtr[1]);
string message = null;
if ((dwMessageId == -2147352567) && (pExcepInfo.scode != 0))
{
dwMessageId = pExcepInfo.scode;
message = pExcepInfo.bstrDescription;
}
switch (dwMessageId)
{
case -2147467260:
case -2147221492:
return;
case 0:
case 1:
this.OnValueChanged(component, EventArgs.Empty);
this.lastValue = value;
return;
}
if (dispatch is UnsafeNativeMethods.ISupportErrorInfo)
{
empty = typeof(UnsafeNativeMethods.IDispatch).GUID;
if (System.Windows.Forms.NativeMethods.Succeeded(((UnsafeNativeMethods.ISupportErrorInfo) dispatch).InterfaceSupportsErrorInfo(ref empty)))
{
UnsafeNativeMethods.IErrorInfo errorInfo = null;
UnsafeNativeMethods.GetErrorInfo(0, ref errorInfo);
if ((errorInfo != null) && System.Windows.Forms.NativeMethods.Succeeded(errorInfo.GetDescription(null)))
{
message = pBstrDescription;
}
}
}
else if (message == null)
{
StringBuilder lpBuffer = new StringBuilder(0x100);
if (SafeNativeMethods.FormatMessage(0x1200, System.Windows.Forms.NativeMethods.NullHandleRef, dwMessageId, CultureInfo.CurrentCulture.LCID, lpBuffer, 0xff, System.Windows.Forms.NativeMethods.NullHandleRef) == 0)
{
message = string.Format(CultureInfo.CurrentCulture, System.Windows.Forms.SR.GetString("DispInvokeFailed", new object[] { "SetValue", dwMessageId }), new object[0]);
}
else
{
message = lpBuffer.ToString();
while (((message.Length > 0) && (message[message.Length - 1] == '\n')) || (message[message.Length - 1] == '\r'))
{
message = message.Substring(0, message.Length - 1);
}
}
}
throw new ExternalException(message, dwMessageId);
}
finally
{
SafeNativeMethods.VariantClear(new HandleRef(null, ptr));
Marshal.FreeCoTaskMem(ptr);
}
}
finally
{
handle.Free();
}
}
}
public object GetNativeValue(object component)
{
if (component == null)
{
return null;
}
if (component is ICustomTypeDescriptor)
{
component = ((ICustomTypeDescriptor) component).GetPropertyOwner(this);
}
if (((component == null) || !Marshal.IsComObject(component)) || !(component is UnsafeNativeMethods.IDispatch))
{
return null;
}
UnsafeNativeMethods.IDispatch dispatch = (UnsafeNativeMethods.IDispatch) component;
object[] pVarResult = new object[1];
System.Windows.Forms.NativeMethods.tagEXCEPINFO pExcepInfo = new System.Windows.Forms.NativeMethods.tagEXCEPINFO();
Guid empty = Guid.Empty;
int errorCode = dispatch.Invoke(this.dispid, ref empty, SafeNativeMethods.GetThreadLCID(), 2, new System.Windows.Forms.NativeMethods.tagDISPPARAMS(), pVarResult, pExcepInfo, null);
switch (errorCode)
{
case 0:
case 1:
if ((pVarResult[0] != null) && !Convert.IsDBNull(pVarResult[0]))
{
this.lastValue = pVarResult[0];
break;
}
this.lastValue = null;
break;
case -2147352567:
return null;
default:
throw new ExternalException(System.Windows.Forms.SR.GetString("DispInvokeFailed", new object[] { "GetValue", errorCode }), errorCode);
}
return this.lastValue;
}
