You're right about the global variables. I cut and pasted data from the vicinity of the global variables instead.
As I've used structures in the past, I declare the structure, then instantiate an instance of it, which associates that instance with a variable name. I then can reference the member variables of the structure by associated them with the instance of the structure. I've tried: TransStruct* aStructure; aStructure->Ground[0]='u'; This compiles but creates the error message regarding accessing global variables when I actually call the function under the emulator. If I comment out the second of the two lines, the code run's fine, apparently accepting the other data inputs associated with the structure's variables. ----- Original Message ----- From: "Logan Shaw" <[EMAIL PROTECTED]> To: "Palm Developer Forum" <[email protected]> Sent: Friday, November 04, 2005 3:16 PM Subject: Re: I hate to ask > Del Ventruella wrote: > > GLOBAL VARIABLES > > > > typedef struct { > > char Name[10]; > > char IDorY[2]; > > UInt16 ANUM; > > } TransStruct; > > typedef TransStruct TransStructType; > > typedef TransStruct* TransStructPtr; > > None of these are global variables. They're all type declarations. > > > DmOpenRef gTdata; > > Now that's a global variable. > > > SUBROUTINE TO GET DATA FROM FIELDS ON FORM > > AND ENTER INTO A STRUCTURE TO LATER BE STORED > > IN A RECORD > > > > Err TrFormGet(TransStruct* aRecord) > > { > > FormType* frmP = FrmGetActiveForm(); > > Err err=0; > > Char* Text; > > TransStruct* aStructure; > > Char* IntegerT = (Char*) MemPtrNew(maxStrIToALen); > > UInt16 test; > > > > //Get pointer to field into which data is to be placed > > FieldType * field = (FieldType*)GetObjectPtr(TName); > > //get data from record structure passed to function > > aRecord->IDorY[0]='u'; > > You haven't given any information about the value of the > aRecord pointer, which was ultimately the question. If > this pointer doesn't point to a valid instance of a > TransStruct, then you will probably get a crash. > > Incidentally, your typedefs above are a bit redundant. It > would be simpler to do this: > > typedef struct TransStruct { > char Name[10]; > char IDorY[2]; > UInt16 ANUM; > } TransStructType; > typedef TransStructType* TransStructPtr; > > However, what you have right now won't cause a crash of course. > > - Logan > > -- > For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/ > -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
