char [4]用于存储IP的数据类型 - VB.NET等价 [英] char[4] data type in c for storing IPs - VB.NET equivalence
问题描述
大家好：
我从dll的文档中读到有一个结构使用
char [4]来存储IP地址。怎么会这样？为什么我能得到
表示字符串VB.NET数据类型中的相同值，知道这个
是它的等价（对于char4）？
接下来是数据类型定义
'''''unsigned char [4]
< System.Runtime.InteropServices。 MarshalAsAttribute（System.Runtime.InteropServices.UnmanagedType.ByVa lTStr，SizeConst：= 4）_
Public IP As String
非常感谢为了你的帮助！
-
Emilio Javier Leyes
T ?? cnico Universitario en Inform ?? tica
Sistema de Emergencias 911
萨尔塔，阿根廷
Hi everyone:
i read from the documentation of a dll that there is a struct that uses
char[4] for storing an IP address. How can it be? and how come i can get to
representate the same value in a string VB.NET data type, knowing that this
is its equivalence (for char4)?
Next is the data type definition
''''''unsigned char[4]
<System.Runtime.InteropServices.MarshalAsAttribute (System.Runtime.InteropServices.UnmanagedType.ByVa lTStr, SizeConst:=4)_
Public IP As String
Thanks very much for your help!
--
Emilio Javier Leyes
T??cnico Universitario en Inform??tica
Sistema de Emergencias 911
Salta, Argentina
推荐答案
''unsigned char''是VB中的字节。 />
例如，相当于以下C ++：
unsigned char test [4];
是：
昏暗测试（3）As Byte
-
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C ++到C＃
C ++到VB
C ++到Java
VB& ; C＃to Java
Java to VB& C＃
即时C＃：VB到C＃
即时VB：C＃到VB
即时C ++：VB，C＃或Java到C ++ / CLI
" emitojleyes"写道：
''unsigned char'' is Byte in VB.
As an example, the equivalent to the following C++:
unsigned char test[4];
is:
Dim test(3) As Byte
--
http://www.tangiblesoftwaresolutions.com
C++ to C#
C++ to VB
C++ to Java
VB & C# to Java
Java to VB & C#
Instant C#: VB to C#
Instant VB: C# to VB
Instant C++: VB, C#, or Java to C++/CLI
"emitojleyes" wrote:
大家好：
i从dll的文档中读取有一个结构使用
char [4]用于存储IP地址。怎么会这样？为什么我能得到
表示字符串VB.NET数据类型中的相同值，知道这个
是它的等价（对于char4）？
接下来是数据类型定义
'''''unsigned char [4]
< System。 Runtime.InteropServices.MarshalAsAttribute（System.Runtime.InteropServices.UnmanagedType.ByVa lTStr，SizeConst：= 4）_
Public IP As String
非常感谢你的帮助！
-
Emilio Javier Leyes
T ?? cnico Universitario en Inform ?? tica
Sistema de Emergencias 911
萨尔塔，阿根廷
Hi everyone:
i read from the documentation of a dll that there is a struct that uses
char[4] for storing an IP address. How can it be? and how come i can get to
representate the same value in a string VB.NET data type, knowing that this
is its equivalence (for char4)?
Next is the data type definition
''''''unsigned char[4]
<System.Runtime.InteropServices.MarshalAsAttribute (System.Runtime.InteropServices.UnmanagedType.ByVa lTStr, SizeConst:=4)_
Public IP As String
Thanks very much for your help!
--
Emilio Javier Leyes
T??cnico Universitario en Inform??tica
Sistema de Emergencias 911
Salta, Argentina
嗨大卫，非常感谢您的回复。
我在vb.net中做了什么，实际上我并没有这样做。我在
中使用了一个应用程序
http://blogs.msdn.com/vbteam/archive...voke-easy.aspx ，
显然帮助了我很多，因为，在这个问题之前，我得到了一个错误，并且找不到解决方案。
现在，你说数据类型必须是字节。 ..那么，我应该写什么价值
以下的ip地址，例如：192.168.010.008？
我尝试用字符串替换字符串：
< System.Runtime.InteropServices.MarshalAsAttribute（System.Runtime.InteropServices.UnmanagedType.ByVa lTStr，SizeConst：= 4）>，但是我收到了错误...
如何我可以继续吗？再次感谢大卫。
-
Emilio Javier Leyes
T ?? cnico Universitario en Inform ?? tica
Sistema de Emergencias 911
阿根廷萨尔塔
David Anton写道：
Hi david, and thanks very muuch for your reply.
What i worte in vb.net, actually i didn''t do it. I used an application
avaiable in
http://blogs.msdn.com/vbteam/archive...voke-easy.aspx,
that apparently helped me a lot, because, before this problem, i was getting
an error and couldn''t find the solution.
Now, you say the data type must be byte... so, what value should i write for
the following ip address, for example: 192.168.010.008?
I tried replacing string for byte in:
<System.Runtime.InteropServices.MarshalAsAttribute (System.Runtime.InteropServices.UnmanagedType.ByVa lTStr, SizeConst:=4)>, but i got an error...
How can i continue? Thanks again david.
--
Emilio Javier Leyes
T??cnico Universitario en Inform??tica
Sistema de Emergencias 911
Salta, Argentina
"David Anton" wrote:
''unsigned char''是VB中的字节。
例如，相当于以下C ++：
unsigned char test [4];
是：
Dim test（3）As Byte
-
http://www.tangiblesoftwaresolutions.com
C ++到C＃
C ++到VB
C ++到Java
VB& C＃to Java
Java to VB& C＃
即时C＃：VB到C＃
即时VB：C＃到VB
即时C ++：VB，C＃或Java到C ++ / CLI
" emitojleyes"写道：
''unsigned char'' is Byte in VB.
As an example, the equivalent to the following C++:
unsigned char test[4];
is:
Dim test(3) As Byte
--
http://www.tangiblesoftwaresolutions.com
C++ to C#
C++ to VB
C++ to Java
VB & C# to Java
Java to VB & C#
Instant C#: VB to C#
Instant VB: C# to VB
Instant C++: VB, C#, or Java to C++/CLI
"emitojleyes" wrote:
大家好：
i从dll的文档中读取有一个结构使用
char [4]用于存储IP地址。怎么会这样？为什么我能得到
表示字符串VB.NET数据类型中的相同值，知道这个
是它的等价（对于char4）？
接下来是数据类型定义
''''''unsigned char [4]
Hi everyone:
i read from the documentation of a dll that there is a struct that uses
char[4] for storing an IP address. How can it be? and how come i can get to
representate the same value in a string VB.NET data type, knowing that this
is its equivalence (for char4)?
Next is the data type definition
''''''unsigned char[4]
< System.Runtime.InteropServices.MarshalAsAttribute（System.Runtime.InteropServices.UnmanagedType.ByVa lTStr，SizeConst：= 4）_
<System.Runtime.InteropServices.MarshalAsAttribute (System.Runtime.InteropServices.UnmanagedType.ByVa lTStr, SizeConst:=4)_
公共IP字符串
非常感谢您的帮助！
-
Emilio Javier Leyes
T ?? cnico Universitario en Inform ?? tica
Sistema de Emergencias 911
萨尔塔，阿根廷
Public IP As String
Thanks very much for your help!
--
Emilio Javier Leyes
T??cnico Universitario en Inform??tica
Sistema de Emergencias 911
Salta, Argentina
emitojleyes写道：
emitojleyes wrote:
嗨大卫，非常感谢您的回复。
我在vb.net中做了什么，实际上我并没有这样做。我在
中使用了一个应用程序
http://blogs.msdn.com/vbteam/archive...voke-easy.aspx ，
显然帮助了我很多，因为，在这个问题之前，我得到了一个错误，并且找不到解决方案。
现在，你说数据类型必须是字节。 ..那么，我应该为
写下以下ip地址的价值，例如：192.168.010.008？
Hi david, and thanks very muuch for your reply.
What i worte in vb.net, actually i didn''t do it. I used an application
avaiable in
http://blogs.msdn.com/vbteam/archive...voke-easy.aspx,
that apparently helped me a lot, because, before this problem, i was getting
an error and couldn''t find the solution.
Now, you say the data type must be byte... so, what value should i write for
the following ip address, for example: 192.168.010.008?
新字节（）{192,168,10,8}
New Byte() { 192, 168, 10, 8 }
我试过替换字符串byte in：
< System.Runtime.InteropServices.MarshalAsAttribute（System.Runtime.InteropServices.UnmanagedType.ByVa lTStr，SizeConst：= 4）>，但我收到错误...
我该如何继续？再次感谢大卫。
I tried replacing string for byte in:
<System.Runtime.InteropServices.MarshalAsAttribute (System.Runtime.InteropServices.UnmanagedType.ByVa lTStr, SizeConst:=4)>, but i got an error...
How can i continue? Thanks again david.
你想要一个大小为4的字节数组，所以它应该是这样的：
< MarshalAsAttribute（UnmanagedType） .LPArray，SizeConst：= 4，
ArraySubType：= UnmanagedType.U1>
-
G ??跑Andersson
_____
http://www.guffa.com
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