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I have a code below:
void SendData(bool condition1, char PortNo[10],char IPAddr[50], char Data[11])
{
int _PortNo;
if(condition1)
{
_PortNo=atoi(PortNo);
SOCKET CliSocket;
// used to specify a local or remote endpoint address to which to connect a socket.
SOCKADDR_IN ServAddr;
WSADATA wsaData; // Create a WSADATA object called wsaData
WORD wError; // error flag
//[in] Highest version of Windows Sockets SPI support that the caller can use.
WORD wVersionRequested;
int nBytesSent, nError;
wVersionRequested=MAKEWORD(1,1); // makes a request for the version of Winsock on the system
wError=WSAStartup(wVersionRequested, &wsaData);// initialize Winsock
if(wError !=0)
{
AfxMessageBox("Windows Socket Error");
condition1=FALSE;
}
// Tell the user that we could not find a usable
else if(LOBYTE(wsaData.wVersion)!=LOBYTE(wVersionRequested)||
HIBYTE(wsaData.wVersion)!=HIBYTE(wVersionRequested))
{
AfxMessageBox("Socket Version Not Correct");
WSACleanup(); // reset
condition1=FALSE;
}
else
{
CliSocket=socket(AF_INET, SOCK_STREAM,0); // (AF_INET)Internet Protocol version 4
if(CliSocket==INVALID_SOCKET)
{
WSACleanup();
AfxMessageBox("Cannot Initialize Windows Socket");
condition1=FALSE;
}
else
{
ServAddr.sin_family=AF_INET;
ServAddr.sin_port=htons(_PortNo);// takes a 16-bit number in host byte order and returns a 16-bit number in network byte order
ServAddr.sin_addr.s_addr=inet_addr(IPAddr);
// gives the amount of storage
nError=connect(CliSocket,(LPSOCKADDR)&ServAddr,sizeof(ServAddr));
if(nError==SOCKET_ERROR)
{
closesocket(CliSocket);
WSACleanup();
AfxMessageBox("Cannot Connect to Display Server");
return;
}
nBytesSent=send(CliSocket, Data, lstrlen/*returns the length in bytes */(Data),0);
if (nBytesSent==SOCKET_ERROR)
{
closesocket(CliSocket);
WSACleanup();
AfxMessageBox("Send Error");
return;
}
else
{
closesocket(CliSocket);
WSACleanup();
}
}
}
}
}
So the code should write under the void CYourDlg::OnSend() or another place?
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TTjen wrote:
So the code should write under the void CYourDlg::OnSend() or another place?
Call your function in the CYourDlg::OnSend() function and it should do what you want.
Behind every great black man...
... is the police. - Conspiracy brother
Blog[^]
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Hi,
I created .exe using Turbo editor. I would like to add an Image to the exe. How to add an Image to exe?
thanks in advance
dadsadasd
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Have you checked out BeginUpdateResource() and UpdateResource()?
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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asv wrote:
I created .exe using Turbo editor
If I am not mistaken, you have created your Project/Software in Dos Based Turbo editor then i am afraid that's not possible with the dos based compiled version executable
"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
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hi all, plz see below.
The click event...
void MyTrayDlg::OnButton1()
{
//some code..
m_cList.AddString("item_x");
}
i'm trying to call this click event in some other function like..
void MyTrayDlg::MyFun()
{
this->OnButton1();
}
everything is working fine... but i'd like to know how to simulate a Real button on click.. i mean to see the "Pressing" effect on the Button1. how to do?
Thanx n regards,
Rookie
Installing MFC...2% complete.
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Make a variable for the button: CButton m_Btn;
m_Btn.SendMessage(WM_LBUTTONDOWN,0,MAKELPARAM(2,2));
Sleep(400);
m_Btn.SendMessage(WM_LBUTTONUP,0,MAKELPARAM(2,2));
this is this.
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Nice.. khan... but u know i'm putting this inside a loop in a worker thread..
void CQACDDlg::DevMonitoringThread()// thread
{
do
{
m_Btn.SendMessage(WM_LBUTTONDOWN,0,MAKELPARAM(2,2));
Sleep(400);
m_Btn.SendMessage(WM_LBUTTONUP,0,MAKELPARAM(2,2));
}
}
its freezing the GUI.. but not totally.. a small time slice is available within wihch if we call the CWinThread::SuspendThread().. its stopping.. but getting the time slice is very difficult.. i tried to increase the Sleep() to 1000. still i'm not able to click on the other button which fires SuspendThread().. u get me?..
Thanx n regards,
Rookie
Installing MFC...2% complete.
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its actually a do{ } while loop i'm using inside the Thread.. by the way, is it a good practice to use do-while loop inside a thread to repeat a block of code?? please help
Thanx n regards,
Rookie
Installing MFC...2% complete.
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do
{
m_Btn.SendMessage(WM_LBUTTONDOWN,0,MAKELPARAM(2,2));
Sleep(50);
m_Btn.SendMessage(WM_LBUTTONUP,0,MAKELPARAM(2,2));
Sleep(1000); // new one.
} while (1);
It seems that when the button is down, it does not let the parent click anywhere. So reduce the amount of time the button stays down to 50ms.
This seems working somewhat.
I feel lost on this one!
this is this.
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anyway, its working Thanx a lot 
regards,
Rookie
Installing MFC...2% complete.
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Rookieee wrote:
its freezing the GUI...
Which would be the expected result when a thread sends a message to a control that it does not own. Post the message instead.
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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I have design a dialog include some button to click. I want to set a default button that when I press enter from the keyboard, it will just like I click on that button.
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Include this style for the button:
BS_DEFPUSHBUTTON
Or in the dialog editor, set the "Default Button" property to true.
this is this.
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You cab set the default ID at runtime using
CDialog::SetDefID(ID_OK) //Parameter is the ID value of the button that you want to make defualt
Ritu Kwatra
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Respected all
I have to use Dynamic Array because I dont know in advance the size of array,so i have to use Dynamic array but how to use it plz guide me with some examples.
Thanking in anticipation.
david
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Take a look at the std::vector. It works well for that.
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david, you can use CArray for the task.
Check the link
Hope it will solve your problem
Ritu Kwatra
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y not u use linked lists?
regards,
Rookie
Installing MFC...2% complete.
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this article also refers to linked list
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Unless you cannot use one of the collections already mentioned, here's an example:
int array_size = 129;
int *array = new int[array_size];
array[0] = 5;
array[1] = 17;
...
delete [] array;
"One must learn from the bite of the fire to leave it alone." - Native American Proverb
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Can someone send me some example how to send a data follow the MODBUS format.
Its really important and urgent for me.....Thanks
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Hello
I want to use namespace in a com atl project in VC6. I don't know how i have to do this. I want to use this dll in C# and it will be nice to have namespace.
Tahnks,
Mihai
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