C / C++ / MFC

error C2143: syntax error : missing ',' before '*'

6-May-09 23:37

Yeah - you need to handle scrolling yourself. You need to:

When the view is resized, work out if it's big enough to display all the controls. If it is, then disable the scroll bars. If it isn't, then you need to use SetScrollInfo[^] to tell the scrollbars how to display themselves.
You need to add OnVScroll and/or OnHScroll handlers to deal with scroll messages. Use SetScrollPos[^] and ScrollWindow[^] to tell the view about the scrollbar parameters so it can work out which bit of the form should be displayed

Yeah, it's a pain. Microsoft do supply a CScrollView...but that inherits from CView, as does CFormView - and MFC is a bit backward when it comes to OOP.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

subramanyeswari6-May-09 20:31

subramanyeswari

6-May-09 20:31

Hi,

I am compiling the legacy code in VS.Net 2008 64 bit platform. I am getting the above error in the following line

static HRESULT copy(destination_type* pTo , const int source_type* pFrom)

how to resolve the above error?
Please help me

Regards

Re: error C2143: syntax error : missing ',' before '*'

Stuart Dootson6-May-09 20:43

Re: error C2143: syntax error : missing ',' before '*'

6-May-09 20:43

What are destination_type and source_type meant to be?

Also - "const int source_type* pFrom" looks wrong no matter what source_type is (unless it is nothing)

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

subramanyeswari6-May-09 20:52

subramanyeswari

6-May-09 20:52

This is the definition

template <class MapType, class DestinationType = MapType::referent_type>

and source type is defined as

typename MapType::value_type		source_type;

what is wrong here?

Re: error C2143: syntax error : missing ',' before '*'

Stuart Dootson6-May-09 23:00

Re: error C2143: syntax error : missing ',' before '*'

6-May-09 23:00

const int source_type* pFrom

You have two types in that parameter declaration. Let us say that source_type is std::string - that translates to

const int std::string* pFrom

That doesn't make sense, now, does it?

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

KarstenK6-May-09 21:21

KarstenK

6-May-09 21:21

get out to what the original types are solved. Confused | :confused:

Try to make the first or the second paramater to void* to check which parameter is the error. Unsure | :~

Press F1 for help or google it.
Greetings from Germany

Re: error C2143: syntax error : missing ',' before '*'

Member 802752223-Jun-11 5:04

Member 8027522

23-Jun-11 5:04

I figured out why it doesn't work in visual studio c++. Here is the correct code I used to fix my error C2143:

#include "Wave.h" /* This header file has the CWave class in it */

CWave *wave1;

int main()
{
wave1.Load(_T("C:...\Music.wav"));
wave1.Play();
Sleep(100000);
}

How use win32 dll in c#

ashish8patil6-May-09 20:25

ashish8patil

6-May-09 20:25

Hello All ,

I create win32 dll .with simple function Add(int,int).
using dumpbin i can see add function is in my dll.

Then i create new c# console application. in that folder i put trydll.dll,trydll.lib .
then in .cs file i add using System.Runtime.InteropServices;
my class was like this

------
class Program
{
[DllImport("trydll.dll")]
public static extern int Add(int a, int b);
static void Main(string[] args)
{
int c;
//int a=2;
c = Add(5, 6);
Console.Write(c);
}
}
-------

when i run prog .i get run time exception

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

Unhandled Exception: System.DllNotFoundException: Unable to load DLL 'trydll.dll
': The specified module could not be found. (Exception from HRESULT: 0x8007007E)

at dlltry.Program.Add(Int32 a, Int32 b)
at dlltry.Program.Main(String[] args) in C:\Documents and Settings\........

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

What is my mistake

Re: How use win32 dll in c#

Cedric Moonen6-May-09 20:32

Cedric Moonen

6-May-09 20:32

ashish8patil wrote:
in that folder i put trydll.dll,trydll.lib .

Is that the working directory of your application ? Make sure this is the case. I'm not a C# expert but I suppose you can find that in the project options.

Cédric Moonen
Software developer

Charting control [v2.0]
OpenGL game tutorial in C++

Re: How use win32 dll in c#

ashish8patil6-May-09 20:45

ashish8patil

6-May-09 20:45

yes i put it in working dir

Re: How use win32 dll in c#

_AnsHUMAN_ 6-May-09 21:54

_AnsHUMAN_

6-May-09 21:54

you need to put the mangled name for the function.
[DllImport("/*put the path of the dll*/")]
public static extern int Add/*mangled function name instead of Add*/(int a, int b);

You need to google first, if you have "It's urgent please" mentioned in your question.
Wink | ;-)

_AnShUmAn_

Any way to know the physical sectors that a file occupies?

maishuiking6-May-09 20:20

maishuiking

6-May-09 20:20

Any way to know the physical sectors that a file occupies?

how to maintain version information to project

hemlat6-May-09 20:03

6-May-09 20:03

Hi,
I am using visual studio 2005.I have developed MFC application.I need to maintain version information of data files and code.I am new to MFC.I have seen Version under Resource view.How can I use that resource to display version of Project.Can anyone suggest me.Meanwhile I will also search in google.

Madhu Nair6-May-09 20:21

Madhu Nair

6-May-09 20:21

hemlat wrote:
I need to maintain version information of data files and code.

Are you talking about any Source Code Management tools ?

Please go through these sites and rephrase the question ...

Microsoft Visual Source Safe[^]

Subversion[^]

Chandrasekharan P6-May-09 20:33

Chandrasekharan P

6-May-09 20:33

Please have a look at this. This may help you

http://support.microsoft.com/kb/237870[^]

hemlat6-May-09 21:13

6-May-09 21:13

Hi thanks for your reply. Link is very useful for me.

Stuart Dootson6-May-09 20:36

6-May-09 20:36

This article[^] has what you need - a class to read the version resource of a module.

Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p

hemlat6-May-09 21:10

6-May-09 21:10

Hi thanks for your reply. I needed this kind of code.I will work on that and let you know.

hemlat7-May-09 0:16