How to Get Event from Controls in Docking Dialog - C / C++ / MFC Discussion Boards

Re: What design to use?

gourishsio9-Jul-12 18:09

gourishsio

9-Jul-12 18:09

You mean behavioral design patterns? If yes, then Visitor is a behavioral design pattern only. Smile | :)

Re: What design to use?

_Flaviu9-Jul-12 2:46

_Flaviu

9-Jul-12 2:46

Here[^] is a good sample ...

Re: What design to use?

gourishsio9-Jul-12 18:10

gourishsio

9-Jul-12 18:10

Thanks for that link. Definitely it will be of some use for me. Smile | :)

Re: What design to use?

gourishsio10-Jul-12 18:14

gourishsio

10-Jul-12 18:14

That example uses GUI's own graphics context. And I am using OpenGL. So, it won't work with OpenGL.

Thanks anyways Smile | :)

C programming question

Kotiexalter8-Jul-12 17:50

Kotiexalter

8-Jul-12 17:50

why the output of program come as 65486, 65486??
Can anyone explain ????
int main()
{
int arr[] = {12, 14, 15, 23, 45};
printf("%u, %u\n", arr, &arr);
return 0;
}

Re: C programming question

«_Superman_»8-Jul-12 18:02

«_Superman_»

8-Jul-12 18:02

Both arr and &arr evaluate to the same address.
See here - http://stackoverflow.com/questions/2528318/c-how-come-an-arrays-address-is-equal-to-its-value[^]

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Polymorphism in C

Re: C programming question

Madhan Mohan Reddy P8-Jul-12 22:55

Madhan Mohan Reddy P

8-Jul-12 22:55

Pointer name will give the base address of the array. Hence arr( pointer name ) and &arr both will point to the same address.

How to Get Event from Controls in Docking Dialog

Member 21198448-Jul-12 1:27

Member 2119844

8-Jul-12 1:27

i have create Docking Dialog with CDialog

CDialogBar m_wndDlgBar;

in preCreateWindow

C++

if (!m_wndDlgBar.Create(this, IDD_COMMAND_WINDOW,
    WS_CHILD | WS_VISIBLE | CBRS_BOTTOM|CBRS_TOOLTIPS|CBRS_GRIPPER |CBRS_FLYBY| CBRS_SIZE_DYNAMIC, IDD_COMMAND_WINDOW))
{
   TRACE0("Failed to create DlgBar\n");
   return -1;      // Fail to create.
}
 m_wndDlgBar.EnableDocking (CBRS_ALIGN_BOTTOM   );
 EnableDocking(CBRS_ALIGN_BOTTOM   );
 DockControlBar(&m_wndDlgBar);

it Work fine. it display dialog with no error. but it does not give any event.

i have create Class ClsCommandWindow for IDD_COMMAND_WINDOW. in IDD_CCOMMAND_WINDOW i put 2 EditBox and one Button, one of Edit Box apply from Class CMyEdit because i have to use onChar Event.

now the DialogBar display dialog from it ID(IDD_CCOMMAND_WINDOW). with no use of Class. because it is not using class any event from that dialog box does not work.

When i TRACE ("%i\n",nChar); on OnChar it just did nothing.
please some one help me on this how to get event form that dialog box.
Thanks
Amrit

Re: How to Get Event from Controls in Docking Dialog

Sunil P V10-Jul-12 0:05

Sunil P V

10-Jul-12 0:05

You need to subclass the dialog so that it can get events.

Sunil

Why is pointer a compound type, not a fundamental type?

sawerr7-Jul-12 22:06

sawerr

7-Jul-12 22:06

Compound types, by definition, are types that are derived from other basic types. Right?

In my opinion, pointers, with their unique representation( * and &), must be classificated as a fundamental type.

Am I wrong?

Re: Why is pointer a compound type, not a fundamental type?

Richard MacCutchan7-Jul-12 23:20

Richard MacCutchan

7-Jul-12 23:20

sawerr wrote:
Compound types, by definition

Interestingly, Bjarne Stroustrup does not provide a definition in his glossary of C++[^].

speaking as ...

Re: Why is pointer a compound type, not a fundamental type?

«_Superman_»8-Jul-12 3:20

«_Superman_»

8-Jul-12 3:20

A pointer is not a type.
Otherwise you would be able to create it this way - * p;

«_Superman_»
I love work. It gives me something to do between weekends.

Microsoft MVP (Visual C++)

Polymorphism in C

Re: Why is pointer a compound type, not a fundamental type?

fat_boy8-Jul-12 4:03

fat_boy

8-Jul-12 4:03

Since a pointer is a memory address its type if you lie is actually its size, and hence is the same as the bit ness of the OS, 32 or 64, 4 or 8.

However, and this is where it gets interesting, when you increment a pointer the address increases by the size of the declared type. So a char pointer goes up by one byte, a DWORD pointer by 4 and so on.

How to receive data using dynamic array in recv api()?

vanithavadivel7-Jul-12 0:13

vanithavadivel

7-Jul-12 0:13

SQL

Hi,
In my client server application, am sending array of data in ASCII format, while receiving it on other end, i cant able to retrieve whole data using dynamic array.
Instead i used static array and i received the whole data.Can anyone help me to receive the same data using dynamic array.

Re: How to receive data using dynamic array in recv api()?

Richard MacCutchan7-Jul-12 0:55

Richard MacCutchan

7-Jul-12 0:55

without seeing the code that you are using in your receiver it is difficult to guess how to improve it.

speaking as ...

Re: How to receive data using dynamic array in recv()?

Software_Developer7-Jul-12 23:28

Software_Developer

7-Jul-12 23:28

Declare dynamic char buffer:

char* Dynamic_Recieve_Buffer = new char[2000];

Use dynamic buffer:

recv(mySocket , Dynamic_Receive_Buffer , 2000 , 0);

Example code:

//*******************************
//	Dynamic receive buffer      *
//*******************************


#include<stdio.h>
#include<winsock2.h>

#pragma comment(lib,"ws2_32.lib") //Winsock Library



int main(int argc , char *argv[])
{

    char* Dynamic_Receive_Buffer = new char[2000];



	WSADATA wsa;
	SOCKET mySocket;
	struct sockaddr_in server;
	
	int recv_size;
    char *message;


	printf("\nInitialising Winsock...");
	if (WSAStartup(MAKEWORD(2,2),&wsa) != 0)
	{
		printf("Failed. Error Code : %d",WSAGetLastError());
		return 1;
	}
	
	printf("Initialised.\n");
	
	//Create a socket
	if((mySocket = socket(AF_INET , SOCK_STREAM , 0 )) == INVALID_SOCKET)
	{
		printf("Could not create socket : %d" , WSAGetLastError());
	}

	printf("Socket created.\n");
	
	
	server.sin_addr.s_addr = inet_addr("74.125.235.20");
	server.sin_family = AF_INET;
	server.sin_port = htons( 80 );

	//Connect to remote server
	if (connect(mySocket , (struct sockaddr *)&server , sizeof(server)) < 0)
	{
		puts("connect error");
		return 1;
	}
	
	puts("Connected");
	
	//Send some data
	message = "GET / HTTP/1.1\r\n\r\n";
	if( send(mySocket , message , strlen(message) , 0) < 0)
	{
		puts("Send failed");
		return 1;
	}
	puts("Data Send\n");
	
	//Receive a reply from the server
	if((recv_size = recv(mySocket , Dynamic_Receive_Buffer , 2000 , 0)) == SOCKET_ERROR)
	{
		puts("recv failed");
	}
	
	puts("Reply received\n");

	//Add a NULL terminating character to make it a proper string before printing
	Dynamic_Receive_Buffer[recv_size] = '\0';
	puts(Dynamic_Receive_Buffer);

	//delete [] Dynamic_Receive_Buffer;

	 

	return 0;
}

C programming question

Kotiexalter6-Jul-12 18:05

Kotiexalter

6-Jul-12 18:05

Can I find size of datatype without using sizeof operator ????

Re: C programming question

Richard MacCutchan6-Jul-12 21:09

Richard MacCutchan

6-Jul-12 21:09

Not that I am aware of. What problem are you trying to solve?

speaking as ...

Re: C programming question

Code-o-mat6-Jul-12 22:45

Code-o-mat

6-Jul-12 22:45

How about this:

#define NO_SIZEOF_SIZEOF(type)      ((long)(((type *)0) + 1))

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> If it doesn't matter, it's antimatter.<

Re: C programming question

Richard MacCutchan7-Jul-12 0:48

Richard MacCutchan

7-Jul-12 0:48

Thanks, didn't think of that.

speaking as ...

Re: C programming question

Code-o-mat7-Jul-12 9:04

Code-o-mat

7-Jul-12 9:04

Even "youngsters" can have a few tricks up their sleeves. Smile | :)

I also wonder why the OP would need such a thing...maybe he's working with some stripped-down version of C for some egzotic platform that doesn't have sizeof...or it's a school-assignment-type question...

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> If it doesn't matter, it's antimatter.<

Re: C programming question

Richard Andrew x647-Jul-12 10:55

Richard Andrew x64

7-Jul-12 10:55