Re: multithread - Managed C++/CLI Discussion Boards

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Re: printing the customized data through printer in vc++ 6.0 dialog based.

Richard MacCutchan18-Jun-17 22:44

Richard MacCutchan

18-Jun-17 22:44

You need to use the Device Context GDI/GDI+ functions as described in Legacy Graphics (Windows)[^].

Re: printing the customized data through printer in vc++ 6.0 dialog based.

rahul199515-Jun-17 20:16

rahul1995

15-Jun-17 20:16

right now i it printing like
name : xyz age : 19
but i want like this
name : xyz
age : 19
how do i format that

create c++ dll gui and call it on c#

Member 1313968619-Apr-17 21:15

Member 13139686

19-Apr-17 21:15

i want a simple project to create a simple form in c++ which is dll file and call it on c#(Csharp).

Re: create c++ dll gui and call it on c#

Richard MacCutchan19-Apr-17 23:16

Richard MacCutchan

19-Apr-17 23:16

I want a ferrari and a million pounds.

Re: create c++ dll gui and call it on c#

logicalz14-May-17 7:47

logicalz

14-May-17 7:47

It seems like i am in wrong place where no one in serious mood. I think its not a professional forum.

Re: create c++ dll gui and call it on c#

Gerry Schmitz12-May-17 8:51

Gerry Schmitz

12-May-17 8:51

Why?

And what does "on c#" mean?

"(I) am amazed to see myself here rather than there ... now rather than then".
― Blaise Pascal

multithread

Member 1306030229-Mar-17 22:42

Member 13060302

29-Mar-17 22:42

how to make a program multithread to find a max number in array??
sample code please..

Re: multithread

Jochen Arndt29-Mar-17 23:55

Jochen Arndt

29-Mar-17 23:55

Sample code can be found in the web.

We are going to help if you have already tried something and got stuck. But we will not write the code for you.

But there is a simple approach:
Write a function that calculates the max. for a passed range (start pointer and number of items) and stores the maximum value in another array. Create a number of threads that calls that function passing sub ranges of your array. When all threads has finished call the function again passing the array containing the results.

An alternative solution would not use an additional array but a shared variable to hold the maxmimum value found so far. But then the threads must use locking which is probably not very efficient.

modified 30-Mar-17 6:01am.

Re: multithread

Member 1306030229-Mar-17 23:57

Member 13060302

29-Mar-17 23:57

thank you.

Re: multithread

Munchies_Matt2-Apr-17 23:34

Munchies_Matt

2-Apr-17 23:34

#define D define
#D Y return
#D R for
#D e while
#D I printf
#D l int
#D W if
#D C y=v+111;H(x,v)*y++= *x
#D H(a,b)R(a=b+11;a<b+89;a++)
#D s(a)t=scanf("%d",&a)
#D U Z I
#D Z I("123\
45678\n");H(x,V){putchar(".XO"[*x]);W((x-V)%10==8){x+=2;I("%d\n",(x-V)/10-1);}}
l V[1600],u,r[]={-1,-11,-10,-9,1,11,10,9},h[]={11,18,81,88},ih[]={22,27,72,77},
bz,lv=60,*x,*y,m,t;S(d,v,f,_,a,b)l*v;{l c=0,*n=v+100,j=d<u-1?a:-9000,w,z,i,g,q=
3-f;W(d>u){R(w=i=0;i<4;i++)w+=(m=v[h[i]])==f?300:m==q?-300:(t=v[ih[i]])==f?-50:
t==q?50:0;Y w;}H(z,0){W(E(v,z,f,100)){c++;w= -S(d+1,n,q,0,-b,-j);W(w>j){g=bz=z;
j=w;W(w>=b||w>=8003)Y w;}}}W(!c){g=0;W(_){H(x,v)c+= *x==f?1:*x==3-f?-1:0;Y c>0?
8000+c:c-8000;}C;j= -S(d+1,n,q,1,-b,-j);}bz=g;Y d>=u-1?j+(c<<3):j;}main(){R(;t<
1600;t+=100)R(m=0;m<100;m++)V[t+m]=m<11||m>88||(m+1)%10<2?3:0;I("Level:");V[44]
=V[55]=1;V[45]=V[54]=2;s(u);e(lv>0){Z do{I("You:");s(m);}e(!E(V,m,2,0)&&m!=99);
W(m!=99)lv--;W(lv<15&&u<10)u+=2;U("Wait\n");I("Value:%d\n",S(0,V,1,0,-9000,9000
));I("move: %d\n",(lv-=E(V,bz,1,0),bz));}}E(v,z,f,o)l*v;{l*j,q=3-f,g=0,i,w,*k=v
+z;W(*k==0)R(i=7;i>=0;i--){j=k+(w=r[i]);e(*j==q)j+=w;W(*j==f&&j-w!=k){W(!g){g=1
;C;}e(j!=k)*((j-=w)+o)=f;}}Y g;}

I have OCX created in VC++ that has many functions. OCX has got some GUI. I want to use those functions in C# web application without loading OCX. i.e. I want to extract only functions from OCX. Can anyone please suggest how this can be done?

Member 109266063-Mar-17 1:10

Member 10926606

3-Mar-17 1:10

I have OCX created in VC++ that has many functions. OCX has got some GUI.
I want to use those functions in C# web application without loading OCX. i.e. I want to extract only functions from OCX. Can anyone please suggest how this can be done?

Re: I have OCX created in VC++ that has many functions. OCX has got some GUI. I want to use those functions in C# web application without loading OCX. i.e. I want to extract only functions from OCX. Can anyone please suggest how this can be done?

Richard Andrew x645-Mar-17 6:06

Richard Andrew x64

5-Mar-17 6:06

Copy and paste? Hmmm | :|

The difficult we do right away...
...the impossible takes slightly longer.

how do I fix this

girl74326-Feb-17 19:02

girl7432

6-Feb-17 19:02

i have been trying to make create this program, it's kinda hard for me to get help in real life because I'm the only computer science student in my second semester. 

this is c++. I have to use arrays 
I have to make a program that shows grades, based on marks. The number of students depends on the user input. 

grade A >=90
grade B >=80
grade C >=70
grade D >=60
grade F <=59

based on the homework my lecturer has given me, the output has to be like this

Enter the number of students: 4
Enter 4 marks: 40 55 70 58
student 0 mark is 40 and grade is C
student 1 mark is 55 and grade is B 
student 2 mark is 70 and grade is A
student 3 mark is 58 and grade is B 

This is my code: 

#include<iostream>
using namespace std;
int main(){
int students;
int mark;
int x;
char grade[6]={'A','B','C','D','F','\0'};
cout<<"enter the number of students"<<endl;
cin>>students;
cout<<"enter "<<students<<" marks "<<endl;
for(x=0;x<students;x++){
cin>>mark;
if(mark>=90)
grade[0];
else if(mark>=80)
grade[1];
else if(mark>=70)
grade[2];
else if(mark>=60)
grade[3];
else
grade[4];

cout<<"student "<<students<<" mark is "<<mark<<" and grade is "<<grade[x];
}
}

I don't know what to do anymore. Help me

Re: how do I fix this

Jochen Arndt6-Feb-17 21:18

Jochen Arndt

6-Feb-17 21:18

You have to use arrays. So you should learn about them:
Arrays - C++ Tutorials[^]
std::array - cppreference.com[^]

The example output shows also that you need two loops:
One to read the user input and store it within the array and another one to print the items.

It is up to you what to store in the array: The mark or the grade. Depending on that the conversion has to be done in the first or second loop. But I would store the mark because that is the data entered by the user and is therefore not lost and can be re-used (e.g. when the next task is extending your program).

Because this is homework, you will not get a final solution here. But you should be able to proceed with my above tips.

Re: how do I fix this

Richard MacCutchan6-Feb-17 21:35

Richard MacCutchan

6-Feb-17 21:35

C++

if(mark>=90)
grade[0];

The expression in the second line does nothing.

C++

cout<<"student "<<students<<" mark is "<<mark<<" and grade is "<<grade[x];

The value of x in the above statement is the loop counter, so it has no relation to the actual grade value you are trying to deal with.

This is fairly basic C/C++ that you need to study and understand.

Re: how do I fix this

Patrice T18-Feb-17 15:26

Patrice T

18-Feb-17 15:26

Quote:
I don't know what to do anymore. Help me

Use the debugger to check what part of your code match your expectations and which part don't, it will help you to marrow the search of defects.

When you don't understand what your code is doing or why it does what it does, the answer is debugger.
Use the debugger to see what your code is doing. Just set a breakpoint and see your code performing, the debugger allow you to execute lines 1 by 1 and to inspect variables as it execute, it is an incredible learning tool.

Debugger - Wikipedia, the free encyclopedia[^]
Mastering Debugging in Visual Studio 2010 - A Beginner's Guide[^]

The debugger is here to show you what your code is doing and your task is to compare with what it should do.
There is no magic in the debugger, it don't find bugs, it just help you to. When the code don't do what is expected, you are close to a bug.

Here is links to references books on C and C++ by the authors of the languages. Note than C is the ancestor of C++, so knowing C is always useful with C++.
The C Programming Language - Wikipedia, the free encyclopedia[^]
https://hassanolity.files.wordpress.com/2013/11/the_c_programming_language_2.pdf[^]
http://www.ime.usp.br/~pf/Kernighan-Ritchie/C-Programming-Ebook.pdf[^]

C++ Programing Language[^]

Patrice

“Everything should be made as simple as possible, but no simpler.” Albert Einstein

Re: how do I fix this

Member 131123846-Apr-17 22:15

Member 13112384

6-Apr-17 22:15

my english is poor ,so I want to help you ,but I can't tell you in english. we can learn together.

VC++ solution Klocwork code analysis is getting stuck

Amrit Agr25-Jan-17 0:55

Amrit Agr

25-Jan-17 0:55

Hi Friends,

I am using VS2015 and having a solution having 33 VC++ projects. I am using Klocwork insight 11.0 for code analysis work.

while running it, its getting stuck on any of the file. I tried re-installing Klocwork and restarting visual studio as well.

Please help me out if anyone have any idea.

Regards,
Amrit

Re: VC++ solution Klocwork code analysis is getting stuck

Jochen Arndt25-Jan-17 1:37

Jochen Arndt

25-Jan-17 1:37

You may get better help in a product specific forum: Forums | Klocwork Developer Network[^].

ChannelFactory create exception

Moby20-Jan-17 22:16

Moby

20-Jan-17 22:16

Hello everybody,

I don't know if I omits something or if I've not correctly understanded something, but I've an Strange exception.

This is the code who generates the exception :

<br />
NetTcpBinding^ binding = gcnew NetTcpBinding();<br />
binding->Name = "IMyWebService";<br />
EndpointAddress^ address = gcnew EndpointAddress("myUrl");<br />
<ChannelFactory<IMyWebService^>^> factory = gcnew ChannelFactory<IMyWebService^>(binding, address);<br />

Exception System.ArgumentNullException occurs on last line.

"All parameter names used in operations that constitute a service contract must be not null. Parameter name : name"

Have you any idea why I'm receiving this exception ?

Many thanks for your help

Best regards,

Syncerely yours,

Re: ChannelFactory create exception

Richard MacCutchan20-Jan-17 22:32

Richard MacCutchan

20-Jan-17 22:32

You need to use the debugger to examine both of the new objects and see exactly which property is causing the exception.

Re: ChannelFactory create exception

Moby26-Jan-17 6:27

Moby

26-Jan-17 6:27

Hi,

Thanks for your reply.

Of course. Objects have been examined but no null name parameter was found.

I've tested using configuration file on the Web service to define the service, behavior, ... rather than using code only.

But same error.

Debugger was checked on both side (client / service).

Very strange.

Regards,

Syncerely yours,

Re: ChannelFactory create exception

Richard MacCutchan26-Jan-17 6:55

Richard MacCutchan

26-Jan-17 6:55

The error message is quite clear, so there must be a null parameter somewhere. It may well be inside the actual framework, caused by something not being built correctl. And the only way to find it is by going deep in the debugger.

c++ toolTip windowsforms graphics

SuchitraAB17-Jan-17 19:53

SuchitraAB

17-Jan-17 19:53

How do I increase size of my tooltip control as I need to show image to my tooltip I probably need to increase size of my tooltip control?

I tried using Text Renderer Measure Text but it just for increasing size according to text we provide.I want to increase size means height and width of my tool Tip so that my whole image gets displayed. Right now only part of image getting displayed using graphics Draw Image function according default size of tool Tip which is small.I am also providing default size of my image by using Graphics Draw Image function.But since size of my toolTip is small only part of image getting displayed.

Re: c++ toolTip windowsforms graphics

Richard MacCutchan17-Jan-17 22:21

Richard MacCutchan

17-Jan-17 22:21

See How to Create a Tooltip for a Control (Windows)[^].

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