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#include <stdio.h>
#include <MagickWand/MagickWand.h>
/* Simplify the exception handling
* technically we should abort the program if
* severity >= ErrorException
*/
void ThrowWandException(MagickWand *wand)
{ char
*description;
ExceptionType
severity;
description=MagickGetException(wand,&severity);
(void) fprintf(stderr,"%s %s %lu %s\n",GetMagickModule(),description);
description=(char *) MagickRelinquishMemory(description);
}
/* useful function especially after appending two wands together */
#define SwapWands(a,b) { MagickWand *tmp=a; a=b; b=tmp; }
int main(int argc, char *argv[])
{
MagickWand
*wand,
*output;
MagickBooleanType
status;
printf("Check append when using 'LastIterator' on empty wand\n");
printf("Result shoud be: 0123\n");
MagickWandGenesis();
wand = NewMagickWand();
MagickSetLastIterator(wand); /* to empty wand */
status = MagickReadImage(wand, "font_0.gif" );
if (status == MagickFalse)
ThrowWandException(wand);
status = MagickReadImage(wand, "font_1.gif" );
if (status == MagickFalse)
ThrowWandException(wand);
status = MagickReadImage(wand, "font_2.gif" );
if (status == MagickFalse)
ThrowWandException(wand);
status = MagickReadImage(wand, "font_3.gif" );
if (status == MagickFalse)
ThrowWandException(wand);
/* append all images together to create the output wand */
MagickResetIterator(wand); /* append all images */
output = MagickAppendImages(wand,MagickFalse);
wand = DestroyMagickWand(wand); /* finished - could swap here */
/* Final output */
status = MagickWriteImage(output,"show:");
if (status == MagickFalse)
ThrowWandException(output);
output = DestroyMagickWand(output);
MagickWandTerminus();
}