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| Acmlm's Board - I2 Archive - Programming - Deleting bytes with VB6 |
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Chickenlump Level: 41  Posts: 48/722 EXP: 474192 For next: 5953 Since: 03-15-04 From: Columbia City Indiana Since last post: 3 hours Last activity: 4 min. |
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| I am curious if it's possible to delete bytes from a file with Visual Basic 6. I was hoping someone here could help me. I was just going to code a small tool for myself to delete the snes header off of the Rom, which I belive is the first 200 bytes. Someone mentioned that I could start reading the file from that offset, and dump to another file, and just rename it, but I'm not sure how to go about that just yet. Or, if there's an easier way that would be cool too. I know there's tools already available to delete the header, but I wouldn't learn anything in the process, and it would be more convinent to just have it built in to my little app. Thanks for any replies.  |
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Darth Coby Vire Dacht je nou echt dat het over was? Dacht je nou echt dat ik gebroken was? Nee toch? Nou kijk eens goed op uit je ogen gast. zonder clic heb je geen kloten tjap... bitch Level: 55  Posts: 129/1371 EXP: 1240774 For next: 73415 Since: 03-15-04 From: Belgium Since last post: 2 days Last activity: 9 hours |
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| Load it as binary, then start reading from byte number $200. Then dump it to another file and replace, that should work. Just like you said. I don't know how you'd start reading from byte number $200 though. |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 142/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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| Dim i as Long, nFileNum as Integer, FileNum2 as Integer Dim TempByte as Byte nFileNum = FreeFile Open "C:\Somefile" for Binary as #nFileNum FileNum2 = FreeFile Open "C:\OutputFile" for Binary as #FileNum2 For i = &h200 to LOF(nFileNum) Get #nFileNum, i, TempByte Put #FileNum2, i-&h200, TempByte DoEvents 'So it doesn't crash Next i Close #nFileNum Close #FileNum2 |
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Kenny3900 Newcomer Level: 6 Posts: 6/9 EXP: 659 For next: 248 Since: 03-15-04 Since last post: 576 days Last activity: 339 days |
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| I'd rather do it like this: ... Dim Temp() as Byte ... Redim Temp(LOF(nFileNum) - 512) ' 512 = &H200 ... Get nFileNum, 513, Temp 'File pointer starts at 1. Put nFileNum2, 1, Temp ... |
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HyperLamer <||bass> and this was the soloution i thought of that was guarinteed to piss off the greatest amount of people Sesshomaru Tamaranian Level: 118 Posts: 147/8210 EXP: 18171887 For next: 211027 Since: 03-15-04 From: Canada, w00t! LOL FAD Since last post: 2 hours Last activity: 2 hours |
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You can do that?  Seeing how you can't assign to an array, that's quite surprising. |
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Chickenlump Level: 41 Posts: 53/722 EXP: 474192 For next: 5953 Since: 03-15-04 From: Columbia City Indiana Since last post: 3 hours Last activity: 4 min. |
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| Thank you both so much! All this is very interesting. Since I'm in a learning mood lately, I'll be pesky and ask... What do you mean by "Cant's assign to an array"? |
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Kenny3900 Newcomer Level: 6 Posts: 7/9 EXP: 659 For next: 248 Since: 03-15-04 Since last post: 576 days Last activity: 339 days |
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Originally posted by HyperHacker Which VB version you use? It ran correctly for me. I haven't go in depth of the program, but I tried the get/put part and there's no error. I'm using VB6. |
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