test_camera.cpp

///////////////////////////////////////////////////////////////////////////////
// File generated by HDevelop for HALCON/C++ Version 23.11.0.0
// Non-ASCII strings in this file are encoded in local-8-bit encoding (utf8).
// Ensure that the interface encoding is set to locale encoding by calling
// SetHcppInterfaceStringEncodingIsUtf8(false) at the beginning of the program.
// 
// Please note that non-ASCII characters in string constants are exported
// as octal codes in order to guarantee that the strings are correctly
// created on all systems, independent on any compiler settings.
// 
// Source files with different encoding should not be mixed in one project.
///////////////////////////////////////////////////////////////////////////////
#include "HalconCpp.h"
#include "HDevThread.h"



using namespace HalconCpp;


#ifndef NO_EXPORT_MAIN
// Main procedure 
void action()
{

  // Local iconic variables
  HObject  ho_Image;

  // Local control variables
  HTuple  hv_WindowHandle, hv_AcqHandle;

  //Image Acquisition 01: Code generated by Image Acquisition 01
  SetWindowAttr("background_color","black");
  OpenWindow(0,0,512,512,0,"visible","",&hv_WindowHandle);
  HDevWindowStack::Push(hv_WindowHandle);
  OpenFramegrabber("Video4Linux2", 1, 1, 0, 0, 0, 0, "progressive", 8, "default", 
      -1, "false", "auto", "video1", 0, -1, &hv_AcqHandle);
  GrabImageStart(hv_AcqHandle, -1);
  while (true)
  {
    GrabImageAsync(&ho_Image, hv_AcqHandle, -1);
    if (HDevWindowStack::IsOpen())
      DispObj(ho_Image, HDevWindowStack::GetActive());
    //Image Acquisition 01: Do something
  }
  CloseFramegrabber(hv_AcqHandle);

}


#ifndef NO_EXPORT_APP_MAIN


int main(int argc, char *argv[])
{
  int ret = 0;

  try
  {
#if defined(_WIN32)
    SetSystem("use_window_thread", "true");
#endif

    // file was stored with local-8-bit encoding
    //   -> set the interface encoding accordingly
    SetHcppInterfaceStringEncodingIsUtf8(false);

    // Default settings used in HDevelop (can be omitted)
    SetSystem("width", 512);
    SetSystem("height", 512);

    action();
  }
  catch (HException &exception)
  {
    fprintf(stderr,"  Error #%u in %s: %s\n", exception.ErrorCode(),
            exception.ProcName().TextA(),
            exception.ErrorMessage().TextA());
    ret = 1;
  }

#if defined(_WIN32)
  // On Windows socket communication is no longer possible after returning
  // from main, so HALCON cannot return floating licenses automatically.
  try
  {
    SetSystem("return_license", "true");
  }
  catch (...)
  {
    // Ignore any errors that might occur when returning the license.
  }
#endif

  return ret;
}

#endif


#endif