#include <stdio.h>
#include <gd.h>

int main()
{
 /*image initialisieren*/
 gdImagePtr image;
 FILE *png,*jpeg;
 int black, white, red, green, grey, blue;
 int i;

 /*Neues Image erstellen*/
 image = gdImageCreate(100,100);
 if(image==NULL) { /*Fehler*/ exit(0); }

 white=gdImageColorAllocate(image,255,255,255);
 black=gdImageColorAllocate(image,0,0,0);

 image->transparent=white;

 for(i=0; i<50; i++)
  gdImageSetPixel(image,i,50,black);

 gdImageLine(image,0,25,99,25,black);

 gdImageDashedLine(image,0,75,99,75, black);


 png = fopen("bild9.png","wb");

 gdImagePng(image,png);

 fclose(png);

 gdImageDestroy(image);

 return 0;
}