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10-17-2009, 03:02 PM
| #1 |
| Registered User  Join Date: Jul 2009 Location: Dallas, Texas
Posts: 39
|  Changing a program from another program? Such as if there is a program which does something like this: Code: char a[10];
void abc()
{
a = "Hello";
cout<<a;
abc();
}
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10-17-2009, 04:53 PM
| #2 |
| Registered User Join Date: Sep 2008
Posts: 47
| I don't think it's possible to create a program that can actually change the value to dog, as the value has already been set. You could consider creating a .txt file that can be read (and changed by you if needed) to give a the value of your choice (dog). So the value could "be set" from outside the program itself. You could even create another program to write this file, choosing the value to change the variable to. Though it's not a permanent change and obviously won't work if you delete the .txt file with the value in. So it doesn't change it as such, just (temporarily) gives it a value from outside the program in effect. Last edited by Jake.c; 10-17-2009 at 04:56 PM. |
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10-22-2009, 05:24 PM
| #3 | |
| Registered User Join Date: Jul 2009 Location: Dallas, Texas
Posts: 39
| i undeerstand and know how to do this but im trying to find out if there is a way to change it even if its not programmed to be changed like some way to force the application to change Quote:
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10-22-2009, 06:42 PM
| #4 | |
| Guest  Join Date: Aug 2001
Posts: 4,923
| Quote:
 Seriously though - sure, anything's possible. Is it trivial or even practical to do so? Of course not. Why would you want to do this, anyway? If it's open-source, just recompile it. If it isn't then you probably don't have any business messing with it in the first place. | |
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10-23-2009, 11:07 PM
| #5 |
| Registered User Join Date: Jan 2009
Posts: 30
| Yes it is possible and it isn't all that hard. You'll need to look into the Windows Functions ReadProcessMemory and WriteProcessMemory. You also need a way to get the process handle, but I'll leave that up to you. |
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10-24-2009, 02:35 AM
| #6 | |
| Mysterious C++ User Join Date: Oct 2007
Posts: 14,099
| No, that is the easy part. The hard part comes later when figuring out what to change.
__________________ Using: Microsoft Windows™ 7 Professional (x64), Microsoft Visual Studio™ 2008 Team System I dedicated my life to helping others. This is only a small sample of what they said: "Thanks Elysia. You're a programming master! How the hell do you know every thing?" Quoted... at least once. Quote:
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