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    *input,
28    *output;
29
30  MagickBooleanType
31    status;
32
33  printf("Add 3 sets of images after setting 'last' on empty wand\n");
34  printf("Result shoud be: 012 345 678\n");
35
36  MagickWandGenesis();
37
38  wand = NewMagickWand();
39  input = NewMagickWand();
40
41  MagickSetLastIterator(wand);
42
43  status = MagickReadImage(input, "font_0.gif" )
44        && MagickReadImage(input, "font_1.gif" )
45        && MagickReadImage(input, "font_2.gif" );
46  if (status == MagickFalse)
47    ThrowWandException(input);
48
49  status = MagickAddImage(wand, input);
50  if (status == MagickFalse)
51    ThrowWandException(wand);
52
53  ClearMagickWand(input);
54  status = MagickReadImage(input, "font_3.gif" )
55        && MagickReadImage(input, "font_4.gif" )
56        && MagickReadImage(input, "font_5.gif" );
57  if (status == MagickFalse)
58    ThrowWandException(input);
59
60  status = MagickAddImage(wand, input);
61  if (status == MagickFalse)
62    ThrowWandException(wand);
63
64  ClearMagickWand(input);
65  status = MagickReadImage(input, "font_6.gif" )
66        && MagickReadImage(input, "font_7.gif" )
67        && MagickReadImage(input, "font_8.gif" );
68  if (status == MagickFalse)
69    ThrowWandException(input);
70
71  status = MagickAddImage(wand, input);
72  if (status == MagickFalse)
73    ThrowWandException(wand);
74  input=DestroyMagickWand(input);
75
76  /* append all images together to create the output wand */
77  MagickResetIterator(wand); /* append all images */
78  output = MagickAppendImages(wand,MagickFalse);
79  wand = DestroyMagickWand(wand);  /* finished - could swap here */
80
81  /* Final output */
82  status = MagickWriteImage(output,"show:");
83  if (status == MagickFalse)
84    ThrowWandException(output);
85
86  output = DestroyMagickWand(output);
87
88  MagickWandTerminus();
89}
90
91