noob question - call method function

[ostapus]

Hi,

is there convenient way to call method function. ie:
now i've to use asm to get (for example) object coordinates

WowPos *coord;
DWORD objectPtr ;
DWORD GetPositionAddr=0x12345 ;

__asm
{
push coords
mov ecx, objectPtr
call GetPositionAddr
}

so, i would like to get rid of __asm and call something like
objectPtr->GetPositionAddr(&coord) ;

can't figure out how to emulate class method call from plain C

thanks

[nitrogrlie]

Nowhere near a computer to test this but something like this should work:

typedef void ( __thiscall * tFunc )( CGObject_C * ptr_this, WowPos * pos);
tFunc GetPosition = (tFunc)0x12345;

Then if the above is typedef inside your CGObject_C class you could:

WowPos coord;
GetPosition(this, &coord);

There are better ways to deal with Virtual Functions though.

[blackfang500]

Nowhere near a computer to test this but something like this should work:

typedef void ( __thiscall * tFunc )( CGObject_C * ptr_this, WowPos * pos);
tFunc GetPosition = (tFunc)0x12345;

Then if the above is typedef inside your CGObject_C class you could:

WowPos coord;
GetPosition(this, &coord);

There are better ways to deal with Virtual Functions though.

Then how are you responding?

[Multitask]

Then how are you responding?

smartphone, nettop, friends pc, ect...

[ostapus]

Nowhere near a computer to test this but something like this should work:

typedef void ( __thiscall * tFunc )( CGObject_C * ptr_this, WowPos * pos);
tFunc GetPosition = (tFunc)0x12345;

Then if the above is typedef inside your CGObject_C class you could:

WowPos coord;
GetPosition(this, &coord);

There are better ways to deal with Virtual Functions though.

bingo! __thiscall (how i could miss this modifier)...
thanks a lot!

+Rep

[Cypher]

Typedefs (for free functions), and class definitions (for member functions and virtual member functions) ftw.