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09-23-2001, 01:12 PM
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Direct access to memory
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Anyone know how to read and write to memory. Much like the old basic commands peek and poke.
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09-23-2001, 01:35 PM
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Hell's Angel
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Re: Direct access to memory
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You cannot access memory directly unless your program runs at Ring 0. Normal user mode apps can dynamically grab memory blocks using the HeapCreate, HeapDestroy, HeapAlloc and HeapFree API calls. As far as you app is concerned it is just a block of memory. You cannot get it location in physcial memory and you cannot access the memory allocated to other processes.
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09-24-2001, 12:31 AM
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Code Meister
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Re: Direct access to memory
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....However, you can read/write to device ports, which is what you mostly used peek and poke for anyways (at least I did). To do this, you need to use a control like IOPORT from UpperCanadaTechnologies.....I forget the URL, but it should show up in a google search....
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09-24-2001, 03:33 AM
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Hell's Angel
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Re: Direct access to memory
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Just curious; could that IOPORT control be written in VB or would it have to be done in VC?
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09-24-2001, 03:40 AM
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Code Meister
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Re: Direct access to memory
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As far as I know, it was written in C (or C++). I'm assuming this because there has been a version of ioport out since VB3, which was before you could even write controls in VB.
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09-24-2001, 03:56 AM
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Hell's Angel
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Re: Direct access to memory
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Sorry, I didn't explain myself very well. What I meant is would it be possilble to write something similar in VB?
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09-25-2001, 12:46 AM
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Code Meister
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Re: Direct access to memory
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In pure VB? Probably not. You could write a DLL in C++, then call that from VB but that's not the same thing....
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