Questions tagged [safearray]
145 questions
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how do I overload a function in IDL based on array parameter item type?
suppose I had this function defined in IDL like this:
[propget, id(6), helpstring("property MyArray")]
HRESULT MyArray([out, retval] SAFEARRAY(myEnum)* pVal);
and I wanted to create an overload for that function defined in IDL like this:
[propget,…
mtijn
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Do I need to call SafeArrayUnLock in this code?
I'm new member of the team and I read code below. I wonder do I need to call SafeArrayUnLock in the dctor? I tried to search on web without clear clue. So really appreciate your help!
Code:
class Trasaction
{
private:
CComSafeArray…
Roy
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2 answers
Marshaling a SAFEARRAY of Managed Structures by COM Interop
i am trying to pass an array of struct exported from a c# library to c++ code. the objective is to pass SAFEARRAY of struct from c++ to c#.
I have followed instructions from…
TrustyCoder
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2 answers
COM: Access violation making a SafeArray of BSTRs
The following code worked just fine thank you with one COM client, but with a new client (the updated version of the same software) string_array_to_bstr_safearray_variant throws an access violation and everything dies.
Can anyone tell me if I'm…
Sideshow Bob
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1 answer
SAFEARRAY data to unsigned char*
I am trying to convert a SAFEARRAY data pointer to unsinged char*. However I am not getting the expected data. Here is a snippet.
SafeArrayLock(psaFrameData);
psaFrameData->rgsabound->cElements;
int nCount = psaFrameData->rgsabound->cElements - …
Ilian Zapryanov
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C++ SafeArrayLock/Unlock creates undefined reference
Whenever trying to use SafeArrayLock/Unlock I keep getting the message "undefined reference to 'SafeArrayLock@4'.
I'm using Code::Block and just copy/pasting the default microsoft example for…
efnfast
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How to convert PVOID to int?
I got a function :
SAFEARRAY FAR* pArray = NULL;
and I get that function :
pServer1->GetDirectMemory(dwAddrBegin, dwAddrEnd, wDisplayWidth, &pArray);
I want to get information from pArray, if i look the structure of it, I have PVOID pvData; that…
Fred37b
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COM method return correct value only when it invoked with pause intervals
I have COM object, which I initialize it at once:
ISTIPositionPtr _position;
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
_position.CreateInstance(__uuidof(STIPosition));
Next I have function, that invoke method of this COM object:
LPSAFEARRAY…
Eldar Agalarov
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How to implement a SAFEARRAY(long) parameter?
I currently have a C# method in an interface that has the following parameters when viewed in
ITypeLib
HRESULT _stdcall SomeMethod ([in] Is_interface* inst,
[in] SAFEARRAY(long) bid);
The above method is in an interface and is defined…
Rajeshwar
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1 answer
SafeArray of SafeArrays? Help to transfer VBA code to C++
FieldInfo:=Array(Array(1, 2), Array(2, 2), Array(3, 2), Array(4, 2), Array(5, 2))
such code from above I have at VBA macros. Now the same thing I should create in a C++ code.
As far as I could understand till now - I should use SAFEARRAY type.
But…
graphElem
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