Questions tagged [safearray]
145 questions
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Why is my variant showing as VT_EMPTY despite containing a safearray
I am trying to return an array which is a portion of a vector to VBA. The vector is just an array of data from a test file stored as an std::string. I would like to pass a Row variable to the DLL and have this return the given data from that line…
Wrightmare
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I tried to add a new template helper function to my class and now I get a LNK2001 error. How to fix?
I asked a couple of questions recently on StackOverflow to see if I could consolidate some functions into one by making use of templates. Those questions were:
Can these methods that convert safe arrays into std::list objects be turned into a…
Andrew Truckle
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How to pass single element safearray to COM function in MATLAB
I have an out of process COM server which provides a function f with the following signature:
f = void f(handle, int32, SafeArray(int32), SafeArray(int32))
When I try
h = actxserver('Server.Object.1');
x0=int32([0 0]);
y0=int32([0…
MiB_Coder
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Passing a byte array to WMI provider class in C++
I have an implementation of WMI client application in C++. I am looking to call ProtectKeyWithExternalKey method of the Win32_EncryptableVolume class. It takes a byte array as parameter (ExternalKey).
uint32 ProtectKeyWithExternalKey(
[in,…
ank
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Passing SAFEARRAY value to COM client
I am trying to Automate a Tool via win32com.client module which expects the Input to be in the following format,The format shown below if specific to MATLAB.
HRESULT StaticStokesParameters([in] SAFEARRAY(double) newVal)
I have no clue what does…
Ashesh Nair
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C#: Reading SafeArray wrapped in Variant from C++ COM
I'm struggling with using a COM-Object in C#. I referenced the dll, and I'm able to call all the functions that return basic data types. But one function that returns a larger data object always throws a SEHException.
The function is defined as…
juju
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How can I free the memory of a c++ safearray in c#
I need to pass data from a C++ dll to a C# environment. Therefore I use a 2d SafeArray of doubles.
This function passes the data from C++ to C#:
void GetIndividualExposures(SAFEARRAY*& data)
{
SAFEARRAYBOUND bounds[2];
bounds[0].lLbound =…
JKlein
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CComSafeArray - type mismatch error when filling array passed from C#
I am trying to pass an array of UINT32 from a C# client to C++ ATL COM service.
The IDL declaration is:
[propput, id(1)] HRESULT ThingyData([in] SAFEARRAY(UINT32) newVal);
The C# code that calls it is:
thingy.ThingyData = new UInt32[] { (UInt32)1…
smead
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Passing a SAFEARRAY variant to vba from a c++ dll
I have in a DLL the following code, which is supposed to take some input from a routine written in VBA, do some stuff with it, and return two 2D-arrays back (so a function is not really doable, besides, if I wanted to return an array containing the…
Noldor130884
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How to pass COM parameter of type SAFEARRAY** from C#
I'm trying to call a COM interface function from C# code. This is an aggregated COM interface where I load the implementing COM interface by ProgID and I have to declare the interface myself. The c++ function definition looks…
forother
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How to pass a list of COleDateTime objects as a SAFEARRAY*
This is my method definition:
IMSAToolsLibraryInterface : IUnknown
{
//
// Raw methods provided by interface
//
virtual HRESULT __stdcall SetPathXML (
/*[in]*/ BSTR strPathXML,
/*[out]*/ __int64 * iResult ) = 0;
…
Andrew Truckle
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Passing array as out parameter from c# using COM
I want to call, using COM, a function with the following signature:
void GetCompoundList(ref object compIds, ref object formulae, ref object names, ref object boilTemps, ref object molwts, ref object casnos)
I have no access to the implementation,…
seb007
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CComSafeArray alignment of of pvData
In VS c++ I am allocating a CComSafeArray and need the data array behind to be 32 byte aligned. How do I do that.
It is not a solution to align the CComSafeArray itself because that does not align the data array behind.
Jens Mose Pedersen
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4 answers
trouble using unmanaged c++ from c# using dllimport
i am having trouble importing c++ unmanaged dll into C# [winform]. Can someone help?
Basically i am just trying to create a safearray of strings in c++ and trying to send it to C#.
Here is my c++ code.
extern "C" __declspec(dllexport) BOOL…
Alag20
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1 answer
Passing an array of interfaces from C# to C++/CLI
I am trying to pass an array of interfaces from C# to C++/CLI. Here is the code:
// *** SafeArrayTesting_PlusPlus.cpp ***
#include "stdafx.h"
#include
using namespace System;
using namespace…
user181813
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