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oib111
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 Posted: Fri Sep 21, 2007 4:42 pm Post subject: calling dlls? |
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How do I call a dll in delphi? I would also like to know how to call in C++ but I need to know how to do in delphi, its important for a project im doing.
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sponge
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| Posted: Fri Sep 21, 2007 4:43 pm Post subject: |
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LoadLibrary/GetProcAddress call eax
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oib111
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| Posted: Fri Sep 21, 2007 4:44 pm Post subject: |
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/ = and or or?
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sponge
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| Posted: Fri Sep 21, 2007 4:45 pm Post subject: |
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and
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oib111
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| Posted: Fri Sep 21, 2007 4:50 pm Post subject: |
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kk, btw, how do i get the file path of something?
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sponge
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| Posted: Fri Sep 21, 2007 5:07 pm Post subject: |
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for your own program? details... if you want to know your on programs path (GetModulePath)
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Noz3001
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| Posted: Fri Sep 21, 2007 5:43 pm Post subject: |
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| Vague, what do you mean by call?
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sponge
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| Posted: Fri Sep 21, 2007 5:44 pm Post subject: |
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guessing he meant call a function in the dll. 
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Noz3001
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| Posted: Fri Sep 21, 2007 5:52 pm Post subject: |
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| _declspec(dllimport) ?
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oib111
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| Posted: Fri Sep 21, 2007 6:39 pm Post subject: |
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Yea, I want to know how to call a function in the dll.
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TheSorc3r3r
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| Posted: Fri Sep 21, 2007 7:17 pm Post subject: |
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DWORD addy = GetProcAddress(LoadLibrary(dllpath), functionname);
__asm
{
push arguments
call addy
}
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oib111
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| Posted: Fri Sep 21, 2007 7:20 pm Post subject: |
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| TheSorc3r3r wrote: | DWORD addy = GetProcAddress(LoadLibrary(dllpath), functionname);
__asm
{
push arguments
call addy
} |
| Code: |
DWORD addy = GetProcAddress(LoadLibrary(/*can i leave path blank if its in the same folder?*/)main);
_asm
{
push arguments //is that rly something i do lol
call addy
}
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???
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TheSorc3r3r
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| Posted: Fri Sep 21, 2007 7:49 pm Post subject: |
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No, yes.
For example:
to call the function nub(int arg1, int arg2) like nub(4, 6), from lol.dll,
DWORD nub = GetProcAddress(LoadLibrary("lol.dll"), "nub");
__asm{
push 6
push 4 // MUST BE IN REVERSE ORDER!
call nub
}
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appalsap
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| Posted: Fri Sep 21, 2007 7:55 pm Post subject: |
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and what if he isn't using the stdcall calling convention? c/c++ compilers don't do that by default 
the proper way is
| Code: |
typedef int(__cdecl* nubprototype)(int arg1, int arg2);
void aaaa()
{
nubprototype nb;
nb = (nubprototype)GetProcAddress(LoadLibrary(TEXT("lol.dll")), "nub");
nb(1, 2); //you can call it like any function, no inline asm required
}
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oib111
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| Posted: Fri Sep 21, 2007 8:20 pm Post subject: |
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| TheSorc3r3r wrote: | No, yes.
For example:
to call the function nub(int arg1, int arg2) like nub(4, 6), from lol.dll,
DWORD nub = GetProcAddress(LoadLibrary("lol.dll"), "nub");
__asm{
push 6
push 4 // MUST BE IN REVERSE ORDER!
call nub
} |
push 6 push 4? I'm sorry, I havn't done assembly in a while =P btw, i know what its doing, well like i know what push 6 and push 4 means i just dont know what its acutally doing
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