wxWidgets Discussion Forum

Thank you very much for these answers, I think that I have a good track.

In fact, I get the image from an IP camera: wxString httpAddress= "http://..."; wxURL imageURL(httpAddress); wxInputStream *inputStream = imageURL.GetInputStream(); wxImage downloadedImage; if ((inputStream != NULL) && (downloadedImage.LoadFile(*inputStream, wxBITMAP_TYPE_JPEG))) {...

Thanks for your answer. This code: unsigned char *memp; mySock->Read(memp,size); means that I must send an unsigned char pointer like: unsigned char *memp; ... mySock->Write(memp,size); So if I have a wxImage, how can I transform it into unsigned char* ; Or if I have a wxInputStream* , how can I tra...

Hi,

Is it possible to send and receive wxImage by using wxSocketBase::Write and wxSocketBase::Read functions?

Thx.

Hello! I have an application derived from wxApp. I use the OnInit() function in order to create sockets. I want to add a loop in the main function(OnRun). But if I surcharge this function, the socket events are not "handled". So how can I do it? To give a mark, I 've created a class derive...

In fact I have a problem "wxYield called recursively" with an application like the sample ipc. I've seen in the book that it is "normal" and I've seen in the forums that I must launch the socket in a second thread. So I've read the tutorial "Sockets FAQ/Tutorial" and af...

Hello! I want to do an application client/server like the sample of the library wxWidgets on the repertory "ipc". But I want launch the socket in a second thread that is to say one thread per client. Could you help me please for the beginning ; I have the impression that it is necessary to...

Look at http://wiki.wxwidgets.org/docbrowse.cgi/wxwin_wxapp.html#wxappyield "Calling Yield() recursively is normally an error and an assert failure is raised in debug build if such situation is detected. However if the onlyIfNeeded parameter is true, the method will just silently return false ...

FireMail wrote:can you show me some code (Thread creation, thread code itself, flags of the socket)

Could you give me an example please, because what I made does not work.

The thread must be joinable or detached ?

I had to create the thread just after we have the event "wxSOCKET_CONNECTION" ? wxTCPServerThread is my thread class: #define TCPSERVERTHREAD #ifdef TCPSERVERTHREAD // -------------------------------------------------------------------------- // wxTCPEventHandler stuff (private class) // -...

Sorry I have deleted all the code concerning the threads.. But I use the classes wxTCPServer, wxTCPClient, and wxTCPConnection, so the flag of the sockets is wxSOCKET_WAITALL. I have decided to modifiy theses classes and not my code. Because yestarday I've observed a private class named "wxTCPE...

Hello!

I have the same problem as you. Could you help me please ?.
Thx.

hi there, there was a good entry in the wxBook. wxSockets do have flags that define how they act (blocking GUI while they receive data, receive all data at once and so on). My problem was that i only used a single thread including GUI and sockets. You need now to imagine that without "blocking...

I've tried to resolve by using a mutex (in static) in order to protect the calling of the macro PROCESS_EVENTS in the class wxSocketBase used by wxTCPConnection, which calls the function wxYield(), but no result. I have the same error.

Hi! I have a problem with the use of wxTCPServer and wxTCPConnection classes. At execution of the program, if 2 clients start each an event (for example the event OnDisonnect) at the same time, I have this error on server side: assert "wxAsserFailure" failed: wxYield called recursively In ...