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MacOS 8.1

Win98

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+--------+-------------------------+-------------------------+--------+--------+
|00000000| 3b 00 3b 54 68 69 73 20 | 65 78 61 6d 70 6c 65 20 |;.;This |example |
|00000010| 64 65 6d 6f 6e 73 74 72 | 61 74 65 73 20 74 68 65 |demonstr|ates the|
|00000020| 20 70 72 69 6e 63 69 70 | 6c 65 20 62 65 68 69 6e | princip|le behin|
|00000030| 64 20 27 64 6f 75 62 6c | 65 20 62 75 66 66 65 72 |d 'doubl|e buffer|
|00000040| 69 6e 67 27 00 3b 00 3b | 44 6f 75 62 6c 65 20 62 |ing'.;.;|Double b|
|00000050| 75 66 66 65 72 69 6e 67 | 20 69 73 20 61 20 70 72 |uffering| is a pr|
|00000060| 6f 67 72 61 6d 6d 69 6e | 67 20 74 65 63 68 6e 69 |ogrammin|g techni|
|00000070| 71 75 65 20 61 6c 6c 6f | 77 69 6e 67 20 79 6f 75 |que allo|wing you|
|00000080| 00 3b 74 6f 20 67 65 74 | 20 72 69 64 20 6f 66 20 |.;to get| rid of |
|00000090| 27 66 6c 69 63 6b 65 72 | 27 20 66 72 6f 6d 20 67 |'flicker|' from g|
|000000a0| 72 61 70 68 69 63 20 61 | 6e 69 6d 61 74 69 6f 6e |raphic a|nimation|
|000000b0| 2e 00 3b 00 3b 44 6f 75 | 62 6c 65 20 62 75 66 66 |..;.;Dou|ble buff|
|000000c0| 65 72 69 6e 67 20 72 65 | 6c 69 65 73 20 6f 6e 20 |ering re|lies on |
|000000d0| 74 68 65 20 69 64 65 61 | 20 74 68 61 74 2c 20 61 |the idea| that, a|
|000000e0| 6c 74 68 6f 75 67 68 20 | 67 72 61 70 68 69 63 73 |lthough |graphics|
|000000f0| 00 3b 61 72 65 20 64 72 | 61 77 6e 20 74 6f 20 61 |.;are dr|awn to a|
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|00000110| 61 70 2c 20 74 68 61 74 | 20 62 69 74 6d 61 70 20 |ap, that| bitmap |
|00000120| 6d 61 79 20 6e 6f 74 00 | 3b 6e 65 63 65 73 73 61 |may not.|;necessa|
|00000130| 72 69 6c 79 20 62 65 20 | 27 73 68 6f 77 6e 27 20 |rily be |'shown' |
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|000008b0| 00 80 02 00             |                         |....    |        |
+--------+-------------------------+-------------------------+--------+--------+