Callisto is provided as a Windows DLL. It has been tested with Microsoft Visual 2010.

• First install the package.
• Next, start a new project in Visual C++, this can be any type of project, but here we will assume it is a Win32 command line project.
• Go to project properties->General->Additional include directories and add the path to the header files there.
• The next step is to add the library to the input list. Go to the project properties->linker->input and add callisto50.lib to the addition dependencies list.
• Now include callisto50.h (and callisto50Types.h if necessary) in your code.
• Finally, copy the content of the bin directory to your debug and/or releases directory.

#include "../include/callisto50.h"
#include <conio.h>
#include <iostream>

int main(int argc, char* argv[])
{
  // initialize Callisto
  if (CAL_Initialisation (true, "callisto.log")!=CAL_SUCCESS) {
    printf ("Error creating log (do you have write permissions in this folder?).");
    _getch();
    return -1;
  }
  
  // show a visualisation
  CAL_ShowView (0, "Callisto Sample");
  CAL_SetViewOptions (0, CAL_HIDEGROUNDPLANE | CAL_HIDEGRID);

  // it is good practise to suspend visualisation until the scene has been set-up
  // this speeds up operation
  CAL_SuspendVisualisation();

  // add a texture resource
  CAL_AddTextureResource (".");

  int textureId=0;
  int res = CAL_LoadTexture (textureId, "grass_1024.jpg");
    
  // create some object groups and create some objects
  int groupId0, groupId1, groupId2, sphereId, coneId, boxId, tetrahedronId, elevationGridId;
  CAL_CreateGroup (&groupId0, 0, true, "Cone group");
  CAL_CreateGroup (&groupId1, 0, true, "Sphere group");
  CAL_CreateGroup (&groupId2, 0, true, "Grass group");

  // create a cone and a sphere
  CAL_CreateCone (groupId0, 20, 50, &coneId);
  CAL_SetObjectPosition (coneId, 0, 25, 0);
  CAL_CreateSphere (groupId1, 10, &sphereId);
  CAL_SetObjectPosition (coneId, 0, 40, 0);

  // define the four corners of the tetrahedron
  float t[12] = {40,0,40, 50,0,40, 40,0,50, 40,30,40};
  CAL_CreateTetrahedron (groupId2, t, &tetrahedronId);
  
  // use a loop to create some boxes
  for (float i=0; i<10; i++) {
    float angle = i*(6.28f/10);
    CAL_CreateBox (groupId2, 5, 35, 5, &boxId);  
    CAL_SetObjectPosition (boxId, 40*sin(angle), 17.5f, 40*cos(angle));
  }

  int nrCols;
  // check if sphere group collides with cone group
  CAL_CheckGroupCollision (groupId0, groupId1, false, &nrCols);
  if (nrCols>0) {
    // if they collide, change color of sphere
    CAL_SetObjectColor (sphereId, 0, 1, 0);
  }

  // give the cone label
  CAL_CreateLabel (coneId, "My first\nCone", 5, 20, 20, 20);

  // create an elevation grid
  float heights[2601];
  for (int i=0; i<2601; i++) {
    heights[i] = (float)rand()/(RAND_MAX/10.0f);
  }

  CAL_CreateElevationGrid (groupId2, 50, 50, 50, 50, heights, &elevationGridId);
  CAL_SetObjectPosition (elevationGridId, -1250, 0, -1250);
  CAL_SetObjectTexture (elevationGridId, textureId, 20, 20);

  // resume rendering
  CAL_ResumeVisualisation();

  _getch();

  // let the sphere rotate around the cone
  float spherePos[3] = {0, 40, 0};
  for (float i=0; i<6.28f; i+=0.1f) {
    spherePos[0] = sin(i)*40;
    spherePos[2] = cos(i)*40;
    CAL_SetObjectPosition (sphereId, sin(i)*40,50,cos(i)*40, i);
  }

  _getch();

  // end Callisto
  CAL_End();

  return 0;
}

All functions and their descriptions can be found in the documentation.