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by: Aaron Queenan |
last post by:
When I build a C++ library to .NET using the managed C++ compiler, I get the
following error message:
Linking...
LINK : error LNK2020: unresolved token (0A000005) _CrtDbgReport
LINK : error LNK2020: unresolved token (0A000007) memset
LINK : error LNK2020: unresolved token (0A000008) free
LINK : error LNK2020: unresolved token (0A00000A) atexit
LINK : error LNK2020: unresolved token (0A000028) wcscpy
LINK : error LNK2020: unresolved...
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by: Klaus Bonadt |
last post by:
I have an existing VC6 application using the MFC.
I am able to pass CString and other parameters from such a VC6 dll to an
unmanaged MFC dll (compiled in Visual Studio .NET).
Now I want to use .Net functionality, i.e. calling methods in managed code.
How do I pass CString variables for input and output usage, i.e. providing
and retrieving char arrays?
Regards,
Klaus
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by: Johannes Unfried |
last post by:
Problem
Best practice needed to marshal STL data from managed code to unmanaged code & vice vers
Details
managed code is written in managed C++ & accesses the unmanaged code (i.e. lives in a mixed mode DLL
unmanaged code is written in unmanaged C++ & resides in an unmanaged DL
Product used is VS.NET 200
Please tell me what is the best practice for getting and setting data fro
unmanaged to managed part when I have a class with...
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by: Bob Rock |
last post by:
Hello,
converting from the managed to the unmanaged world (and viceversa strings)
and byte arrays is something I do often and I'd like to identify the most
correct and efficient way to do it.
Also, I was wondering could there be issues in not making copies when
converting??? I was thinking, when "pointing" to the same data with both
managed and unmanaged strings/arrays couldn't there be issues such as the
garbage collector trying to...
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by: joye |
last post by:
Hello,
How to convert an unmanaged string with char array type to a managed string
with char array type?
Thanks.
Regards,
Tsung-Yu
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by: Maileen |
last post by:
Hi,
How can we convert string^ to String or to LPCWSTR ?
thx,
Maileen
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by: Andy |
last post by:
I'm having trouble accessing an unmanaged long from a managed class in
VC++.NET
When I do, the contents of the variable seem to be mangled. If I
access the same variable byte-by-byte, I get the correct value.
Regardless what I set the variable to, the value that is returned for a
long is always the same value. What's going on...can anyone help me?
A short version of the code follows:
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by: Serge BRIC |
last post by:
My application, written in .NET VB, tries to get a communication port handle
from a TAPI object with this code:
Dim vFileHandle As Byte() = appel.GetIDAsVariant("comm/datamodem")
The vFileHandle is supposed to be a file handle (an IntPtr, I suppose). How
can I convert this Byte() in this IntPtr ?
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by: Madhu_TN |
last post by:
Hi All,
I am new to this board. I am trying to create a Crystal Report viewer into a
VS C++ Dot NET 2003 app ( This uses both managed and unmanaged code).
I get the following compilation error:
C:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\atlmfc\include\
cstringt.h(875): error C2664: 'PtrToStringChars' : cannot convert parameter 1
from 'unsigned char *' to 'const System::String __gc *'
The code segemnt is:
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by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
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by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
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by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
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by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
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