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 */ 8 void 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 23 int main(int argc, char *argv[]) 24 { 25 MagickWand 26 *wand, 27 *input, 28 *output; 29 30 MagickBooleanType 31 status; 32 33 printf("Just read images in three groups, no settings used\n"); 34 printf("Result shoud be: 012 345 678\n"); 35 36 MagickWandGenesis(); 37 38 wand = NewMagickWand(); 39 input = NewMagickWand(); 40 41 status = MagickReadImage(input, "font_0.gif" ) 42 && MagickReadImage(input, "font_1.gif" ) 43 && MagickReadImage(input, "font_2.gif" ); 44 if (status == MagickFalse) 45 ThrowWandException(input); 46 47 status = MagickAddImage(wand, input); 48 if (status == MagickFalse) 49 ThrowWandException(wand); 50 51 ClearMagickWand(input); 52 status = MagickReadImage(input, "font_3.gif" ) 53 && MagickReadImage(input, "font_4.gif" ) 54 && MagickReadImage(input, "font_5.gif" ); 55 if (status == MagickFalse) 56 ThrowWandException(input); 57 58 status = MagickAddImage(wand, input); 59 if (status == MagickFalse) 60 ThrowWandException(wand); 61 ClearMagickWand(input); 62 63 ClearMagickWand(input); 64 status = MagickReadImage(input, "font_6.gif" ) 65 && MagickReadImage(input, "font_7.gif" ) 66 && MagickReadImage(input, "font_8.gif" ); 67 if (status == MagickFalse) 68 ThrowWandException(input); 69 70 status = MagickAddImage(wand, input); 71 if (status == MagickFalse) 72 ThrowWandException(wand); 73 input=DestroyMagickWand(input); 74 75 /* append all images together to create the output wand */ 76 MagickResetIterator(wand); /* append all images */ 77 output = MagickAppendImages(wand,MagickFalse); 78 wand = DestroyMagickWand(wand); /* finished - could swap here */ 79 80 /* Final output */ 81 status = MagickWriteImage(output,"show:"); 82 if (status == MagickFalse) 83 ThrowWandException(output); 84 85 output = DestroyMagickWand(output); 86 87 MagickWandTerminus(); 88 } 89 90
