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MacOS 8.1

Win98

DOS

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|00000000| 27 01 00 00 54 68 65 20 | 6b 65 79 20 74 6f 20 74 |'...The |key to t|
|00000010| 68 69 73 20 61 72 63 68 | 69 74 65 63 74 75 72 65 |his arch|itecture|
|00000020| 20 69 73 20 74 68 65 20 | 44 61 74 61 41 77 61 72 | is the |DataAwar|
|00000030| 65 43 6f 6c 6c 65 63 74 | 69 6f 6e 20 77 68 69 63 |eCollect|ion whic|
|00000040| 68 20 66 75 6e 63 74 69 | 6f 6e 61 6c 6c 79 20 72 |h functi|onally r|
|00000050| 65 70 6c 61 63 65 73 20 | 74 68 65 20 73 74 61 6e |eplaces |the stan|
|00000060| 64 61 72 64 20 56 42 20 | 43 6f 6c 6c 65 63 74 69 |dard VB |Collecti|
|00000070| 6f 6e 20 6f 62 6a 65 63 | 74 20 61 6e 64 20 61 64 |on objec|t and ad|
|00000080| 64 73 20 73 75 70 70 6f | 72 74 20 66 6f 72 20 6d |ds suppo|rt for m|
|00000090| 6f 72 65 20 61 64 76 61 | 6e 63 65 64 20 4f 4f 20 |ore adva|nced OO |
|000000a0| 74 65 63 68 6e 69 71 75 | 65 73 2c 20 73 75 63 68 |techniqu|es, such|
|000000b0| 20 61 73 20 69 6d 70 6c | 65 6d 65 6e 74 61 74 69 | as impl|ementati|
|000000c0| 6f 6e 20 6f 66 20 74 68 | 65 20 6f 62 6a 65 63 74 |on of th|e object|
|000000d0| 20 63 6f 6e 74 61 69 6e | 6d 65 6e 74 20 68 69 65 | contain|ment hie|
|000000e0| 72 61 72 63 68 79 20 61 | 6e 64 20 70 72 6f 76 69 |rarchy a|nd provi|
|000000f0| 64 69 6e 67 20 61 6e 20 | 61 75 74 6f 6d 61 74 69 |ding an |automati|
|00000100| 63 20 69 6e 74 65 72 66 | 61 63 65 20 77 69 74 68 |c interf|ace with|
|00000110| 20 74 68 65 20 72 65 6c | 61 74 69 6f 6e 61 6c 20 | the rel|ational |
|00000120| 64 61 74 61 20 6d 6f 64 | 65 6c 2e 83 00 00 00 54 |data mod|el.....T|
|00000130| 6f 20 68 61 76 65 20 74 | 68 65 20 64 65 6d 6f 20 |o have t|he demo |
|00000140| 6f 62 6a 65 63 74 73 20 | 63 72 65 61 74 65 64 2c |objects |created,|
|00000150| 20 63 6c 69 63 6b 20 74 | 68 65 20 22 43 72 65 61 | click t|he "Crea|
|00000160| 74 65 20 44 65 6d 6f 20 | 4f 62 6a 65 63 74 73 22 |te Demo |Objects"|
|00000170| 20 62 75 74 74 6f 6e 2c | 20 62 65 6c 6f 77 2e 20 | button,| below. |
|00000180| 20 54 6f 20 62 65 67 69 | 6e 20 74 68 65 20 64 65 | To begi|n the de|
|00000190| 6d 6f 2c 20 63 6c 69 63 | 6b 20 74 68 65 20 22 42 |mo, clic|k the "B|
|000001a0| 65 67 69 6e 20 44 65 6d | 6f 22 20 62 75 74 74 6f |egin Dem|o" butto|
|000001b0| 6e 2e d0 00 00 00 57 65 | 6c 63 6f 6d 65 20 74 6f |n.....We|lcome to|
|000001c0| 20 61 6e 20 65 78 61 6d | 70 6c 65 20 6f 66 20 61 | an exam|ple of a|
|000001d0| 20 56 42 34 20 61 72 63 | 68 69 74 65 63 74 75 72 | VB4 arc|hitectur|
|000001e0| 65 20 77 68 65 72 65 20 | 56 42 34 20 43 6c 61 73 |e where |VB4 Clas|
|000001f0| 73 65 73 20 61 72 65 20 | 75 73 65 64 20 61 73 20 |ses are |used as |
|00000200| 61 20 6e 6f 6e 2d 76 69 | 73 75 61 6c 20 42 75 73 |a non-vi|sual Bus|
|00000210| 69 6e 65 73 73 20 4f 62 | 6a 65 63 74 20 4d 6f 64 |iness Ob|ject Mod|
|00000220| 65 6c 2e 20 20 59 65 74 | 2c 20 74 68 65 79 20 70 |el.  Yet|, they p|
|00000230| 6c 61 79 20 61 6e 20 69 | 6e 74 65 67 72 61 6c 20 |lay an i|ntegral |
|00000240| 72 6f 6c 65 20 69 6e 20 | 74 68 65 20 61 70 70 6c |role in |the appl|
|00000250| 69 63 61 74 69 6f 6e 27 | 73 20 65 78 70 6c 6f 69 |ication'|s exploi|
|00000260| 74 61 74 69 6f 6e 20 6f | 66 20 56 42 34 27 73 20 |tation o|f VB4's |
|00000270| 47 55 49 20 61 6e 64 20 | 44 61 74 61 20 43 6f 6e |GUI and |Data Con|
|00000280| 74 72 6f 6c 73 2e       |                         |trols.  |        |
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