KXL_DrawPoint -- A point is drawn.
It clears by the color set up by KXL_SetDrawColor.

void KXL_DrawPoint(Sint16 left, Sint16 top);

#include <KXL.h>

int main(void)
{
  Sint16 i;

  KXL_CreateWindow(100, 100, "sample", 0);
  for (i = 0; i < 100; i ++) {
    KXL_SetDrawColor(rand() % 0xff, rand() % 0xff, rand() % 0xff);
    KXL_DrawPoint(rand() % 100, rand() % 100);
  }
  KXL_UpDateImm(0, 0, 100, 100);
  getchar();
  KXL_DeleteWindow();
  return 0;
}