1#include <stdio.h>
2#include <MagickWand/MagickWand.h>
3
4/* Simplify the exception handling
5 * technically we should abort the program if
6 *      severity >= ErrorException
7 */
8void ThrowWandException(MagickWand *wand)
9{ char
10  *description;
11
12  ExceptionType
13  severity;
14
15  description=MagickGetException(wand,&severity);
16  (void) fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description);
17  description=(char *) MagickRelinquishMemory(description);
18}
19
20/* useful function especially after appending two wands together */
21#define SwapWands(a,b) { MagickWand *tmp=a; a=b; b=tmp; }
22
23int main(int argc, char *argv[])
24{
25  MagickWand
26    *wand,
27    *output;
28
29  MagickBooleanType
30    status;
31
32  printf("Just read images one at a time, no settings\n");
33  printf("Result shoud be: 0123\n");
34
35  MagickWandGenesis();
36
37  wand = NewMagickWand();
38
39  status = MagickReadImage(wand, "font_0.gif" );
40  if (status == MagickFalse)
41    ThrowWandException(wand);
42
43  status = MagickReadImage(wand, "font_1.gif" );
44  if (status == MagickFalse)
45    ThrowWandException(wand);
46
47  status = MagickReadImage(wand, "font_2.gif" );
48  if (status == MagickFalse)
49    ThrowWandException(wand);
50
51  status = MagickReadImage(wand, "font_3.gif" );
52  if (status == MagickFalse)
53    ThrowWandException(wand);
54
55  /* append all images together to create the output wand */
56  MagickResetIterator(wand); /* append all images */
57  output = MagickAppendImages(wand,MagickFalse);
58  wand = DestroyMagickWand(wand);  /* finished - could swap here */
59
60  /* Final output */
61  status = MagickWriteImage(output,"show:");
62  if (status == MagickFalse)
63    ThrowWandException(output);
64
65  output = DestroyMagickWand(output);
66
67  MagickWandTerminus();
68}
69
70