Cocos2D - NSMutableArray not accessible in ccTouchBegan? -

first, let's clear on 2 things. english terrible , i'm pretty new in cocos2d. sorry , sorry again. :d question.

i have declared these in .m (its ccscene):

//a mutable array global class   nsmutablearray *arrayboutons;  //i use array :  lettrebleue *lettre1 = nil; lettre1 = [lettrebleue construireobjlettre];     lettre1.position = ccp(80,370); [self addchild:lettre1]; [arrayboutons addobject:lettre1];  //the method register touch  -(void) registerwithtouchdispatcher {    [[cctouchdispatcher shareddispatcher] addtargeteddelegate:self priority:kccmenutouchpriority swallowstouches:no]; }  // classic touchbegan in im trying access value valeur  -(bool) cctouchbegan:(uitouch *)touch withevent:(uievent *)event     // test!     nslog(@"debut test cctouchbegan4");     int cptlettres = 0;     {         lettrebleue *unboutontest=[arrayboutons objectatindex: cptlettres];          nslog(unboutontest.valeur);          cptlettres = cptlettres+1;     } while (cptlettres < 16);  

the problem arrayboutons doesn't seem keep data in nsmutablearray.

have initialized nsmutablearray, perhaps in init method? need call like:

arrayboutons = [[nsmutablearray alloc] init]; 

then, need release in dealloc method:

[arrayboutons release];