473,698 Members | 2,298 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

array <Byte>^ to unsigned char*

I've two functions. One is managed and receives an array, and the other
is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?

Jul 29 '06 #1
4 2715
zo******@gmail. com wrote:
I've two functions. One is managed and receives an array, and the
other is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?
Yes. Get a pin_ptr<Bytetha t references the first byte of n and pass it to
Foo

using namespace System;

struct A
{
int Foo(unsigned char* m)
{
return *m;
}
};

ref class B
{
A* m_pA;
int Boo(array< Byte >^ n)
{
pin_ptr<unsigne d charpn = &n[0];
return m_pA->Foo(pn);
}
};

-cd
Jul 30 '06 #2
zo******@gmail. com wrote:
I've two functions. One is managed and receives an array, and the other
is unmanaged and receives a pointer, just like this
class A
{
int Foo(unsigned char* m){};
...
}

ref class B
{
int Boo(array< Byte >^ n){};
...
}

Is there anyway to call the function Foo from Boo passing n directly?
http://www.google.com/search?q=how+t...+to+byte+array

-- Barry

--
http://barrkel.blogspot.com/
Jul 30 '06 #3
zo******@gmail. com wrote:
int Boo(array< Byte >^ n){};
Can someone tell me what this ^ means? I'm still using the C# 1.x
compiler (occasionally 2.x) and I only know ^ as the exclusive-or
operator.

Eq.
Jul 30 '06 #4
Paul E Collins wrote:
zo******@gmail. com wrote:
>int Boo(array< Byte >^ n){};

Can someone tell me what this ^ means? I'm still using the C# 1.x
compiler (occasionally 2.x) and I only know ^ as the exclusive-or
operator.
This questsion was misposted - it's about C++/CLI, where the ^ operator is
used to derefence a "tracking pointer". It's roughly analogous to the '.'
in C# between an object reference and a member name.

-cd
Jul 30 '06 #5

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

16
9190
by: Vince | last post by:
Hi, I have replaced my BYTE* by a vector<BYTE> and before I used to do : void CCardRecord::GetRecData(int nOffset, int nDataSize, CString& csValue) { BYTE *pTmp = NULL; pTmp = new BYTE; memset(pTmp, 0, nDataSize + 1); //memcpy(pTmp, &m_pData, nDataSize);
15
3587
by: jeko | last post by:
Hi, is it possible to read a double variable one byte at a time. I would want store each byte into unsigned char and then assemble again the double variable again. thanx Andrea
9
2244
by: Andrea | last post by:
how can I convert a byte to a string ? Any idea? Andrea
2
1278
by: vertigo | last post by:
Hello How can i convert byte array to string ? Thanx Michal
3
3649
by: David | last post by:
Hi, how to convert a char array(byte) to a string variable? byte buffer; string strTest; /*the blow codes all get type of 'buffer': System.Byte! strTest = buffer.ToString() strTest = System.Convert.ToString(buffer)
9
30509
by: Gregory.A.Book | last post by:
I am interested in converting sets of 4 bytes to floats in C++. I have a library that reads image data and returns the data as an array of unsigned chars. The image data is stored as 4-byte floats. How can I convert the sets of 4 bytes to floats? Thanks, Greg Book
1
1637
by: Hyun-jik Bae | last post by:
Hi, I heard roughly that List<bytekeep data in one block like byte. Is that really true? Please reply. Thanks in advance. Hyun-jik Bae
2
12169
by: blueflyy | last post by:
Hello, I wish to initialize a vector<BYTE> from an existing BYTE array. Simple example: BYTE buf = {0,1,2,3,4,5}; std::vector<BYTE> vec(buf, buf + sizeof(buf)/sizeof(buf));
2
5916
by: Nag76 | last post by:
I have a requirement in the C# app to find if a byte exists as part of byte array and take decision based on that. I came across few of two ways to do that. Use the basic byte Array and use for loop to find the existence of the byte i am looking for (Or) Use some thing like List<byte> byteList and then "byteList.Contains((byte)byteVar)" .
0
8598
by: Hystou | last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it. First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
0
9014
jinu1996
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...
1
8885
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
8855
tracyyun
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...
0
7708
agi2029
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...
0
5857
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();...
0
4358
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
2
2320
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
1995
bsmnconsultancy
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...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.