Simulating a console window

[Doug Broadwell]

Is there a way to implement a "stdout" type of widget in Qt, e.g., a textbox type window that either printf() output would go to (like a terminal) or sprintf() character buffers?

[high_flyer]

I think this might be helpful:
http://www.qtcentre.org/forum/f-qt-p...ghlight=printf

[jrideout]

Check out qt-interest 2004-03. The last two messages have two different interesting solutions.

[RedDev]

Hi,

I ran into a similar problem, but haven't found a working solution yet.

Under the hood of my Qt application I'm using a special purpose library were a cannot change the code. It uses printf() to output errors and warnings.
What I want to do is catch those printf's and print them into a QPlainTextEdit.
I need a solution for Windows and Linux.

On Windows I tried this:

// Create a pipe
HANDLE hPipe = CreateNamedPipe("\\\\.\\pipe\\MyPipeNameHere", PIPE_ACCESS_OUTBOUND | WRITE_DAC,
 
  PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_NOWAIT, 1,
 
  1024, 1024, 2000, NULL);
 
// let a SocketNotifier watch that pipe
QSocketNotifier* notifier = new QSocketNotifier((int)hPipe, QSocketNotifier::Read);
 
connect(notifier, SIGNAL(activated(int)), SLOT(outputReceived()));

// Create a pipe
HANDLE hPipe = CreateNamedPipe("\\\\.\\pipe\\MyPipeNameHere", PIPE_ACCESS_OUTBOUND | WRITE_DAC,

  PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | PIPE_NOWAIT, 1,

  1024, 1024, 2000, NULL);

// let a SocketNotifier watch that pipe
QSocketNotifier* notifier = new QSocketNotifier((int)hPipe, QSocketNotifier::Read);

connect(notifier, SIGNAL(activated(int)), SLOT(outputReceived()));

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But I don't receive anything on that slot.