realbasic, Stuck with realbasic

Stuck with realbasic

Author	Message
stev #1 / 5	Stuck with realbasic Hi, I'm new to real basic. I'm used to programming in foxpro Etc,but don't understand how to have global variables I have an number of methods to read/write adatabase to the screen, but must maintain a global data area. E.G I read the database of supplier names into the list on screen, but then must maintain an array/collection of supplier indexes. which are then used to find the supplier invoices once a supplier is selected. I've tried defining the arrays in the open event of the screen, but when it exits, I loose the global defs ( of course!). is there no event loop in real basic, so that you can define the globals but maintain them whilst the window is open? THANKS steve
Wed, 30 Jul 2003 17:11:40 GMT

Alex #2 / 5	Stuck with realbasic Quote: > Hi, > I'm new to real basic. > I'm used to programming in foxpro Etc,but don't understand how to have > global variables > I have an number of methods to read/write adatabase to the screen, but > must maintain a global data area. > E.G > I read the database of supplier names into the list on screen, but then > must maintain an array/collection of supplier indexes. > which are then used to find the supplier invoices once a supplier is > selected. > I've tried defining the arrays in the open event of the screen, but when > it exits, I loose the global defs ( of course!). > is there no event loop in real basic, so that you can define the globals > but maintain them whilst the window is open? > THANKS > steve Page 112 of Language Reference. Create a module and every variable created with Dim is a global variable. I am also new not only in RB but in programming as such. It is a headache but so much fun. Regards Alex -- Just for fun: http://homepage.mac.com/ZorbasAlex/show.html
Wed, 30 Jul 2003 18:35:33 GMT

FX Wz #3 / 5	Stuck with realbasic Quote: >Page 112 of Language Reference. >Create a module and every variable created with Dim is a global variable. >I am also new not only in RB but in programming as such. It is a >headache but so much fun. I dont believe that's true. Yes you need a module, but in order for the variable to be global, it needs to be a property of the module, if it's dim'ed its gonna be local only to the function it was dim'ed in.
Fri, 01 Aug 2003 07:10:41 GMT

stev #4 / 5	Stuck with realbasic HI, yes I found it, but it is hardly clear. however I have managed to sort it out, but now I'm onto the next problem. Quote: > > Hi, > > I'm new to real basic. > > I'm used to programming in foxpro Etc,but don't understand how to have > > global variables > > I have an number of methods to read/write adatabase to the screen, but > > must maintain a global data area. > > E.G > > I read the database of supplier names into the list on screen, but then > > must maintain an array/collection of supplier indexes. > > which are then used to find the supplier invoices once a supplier is > > selected. > > I've tried defining the arrays in the open event of the screen, but when > > it exits, I loose the global defs ( of course!). > > is there no event loop in real basic, so that you can define the globals > > but maintain them whilst the window is open? > > THANKS > > steve > Page 112 of Language Reference. > Create a module and every variable created with Dim is a global variable. > I am also new not only in RB but in programming as such. It is a > headache but so much fun. > Regards > Alex
Sun, 03 Aug 2003 07:42:54 GMT

stev #5 / 5	Stuck with realbasic hi, yes it does have to be a property , and its' got to be dimed in the root calling module , if it's dimmed in a method, it does ot appear to be global. steve Quote: > >Page 112 of Language Reference. > >Create a module and every variable created with Dim is a global variable. > >I am also new not only in RB but in programming as such. It is a > >headache but so much fun. > I dont believe that's true. Yes you need a module, but in order for the > variable to be global, it needs to be a property of the module, if it's dim'ed > its gonna be local only to the function it was dim'ed in.
Sun, 03 Aug 2003 08:09:34 GMT

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