Return function int64 C++ to a C# project
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i write a dll that is injected on game and return my localplayer and listArrayplayer on server. Ok work fine
code dll project:
C++ code:
__int64 RerturnLocalPlayer() {
__int64 player = GetLocalPlayer_EX();// __Int64 GetLocalPlayer_EX() is a function that return type __int64 value
return player;
}
in main.h:
extern "C" {
__declspec(dllexport) __int64 RerturnLocalPlayer();
}
mt function
extern "C" {
__declspec(dllexport) __int64 GetLocalPlayer_EX()
{
DWORD64 pClientGameContext = *(DWORD64*)OFFSET_CLIENTGAMECONTEXT;
if (!(pClientGameContext)) return 0;
DWORD64 pPlayerManager = *(DWORD64*)(pClientGameContext + 0x68);
if (!(pPlayerManager)) return 0;
DWORD64 pObfuscationMgr = *(DWORD64*)OFFSET_ObfuscationMgr;
if (!(pObfuscationMgr)) return 0;
DWORD64 LocalPlayerListXorValue = *(DWORD64*)((DWORD64)pPlayerManager + 0xF0);
DWORD64 LocalPlayerListKey = LocalPlayerListXorValue ^ *(DWORD64 *)(pObfuscationMgr + 0x70);
hashtable<DWORD64>* table = (hashtable<DWORD64>*)(pObfuscationMgr + 8);
hashtable_iterator<DWORD64> iterator = { 0 };
hashtable_find(table, &iterator, LocalPlayerListKey);
if (iterator.mpNode == table->mpBucketArray[table->mnBucketCount])
return 0;
DWORD64 EncryptedPlayerMgr = (DWORD64)iterator.mpNode->mValue.second;
if (!(EncryptedPlayerMgr)) return 0;
DWORD MaxPlayerCount = *(DWORD *)(EncryptedPlayerMgr + 0x18);
if (MaxPlayerCount != 1) return 0;
return EncryptedPlayerMgr__GetPlayer(EncryptedPlayerMgr, 0);
}
}
C# Code:
[System.Runtime.InteropServices.DllImportAttribute("BFClient1.dll", EntryPoint = "RerturnLocalPlayer",
CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
public static extern Int64 RerturnLocalPlayer();
Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
Console.WriteLine("LocalPlayer " + localp.ToString("X"));
the problem is when i run my c# application my console open and after 3 seconds close and sometimes get error: **Attempt to read or write to protected memory. Usually, this is an indication that another memory is damaged.
can some one try help me?
c# c++ c++11 visual-c++ c#-4.0
add a comment |
up vote
0
down vote
favorite
i write a dll that is injected on game and return my localplayer and listArrayplayer on server. Ok work fine
code dll project:
C++ code:
__int64 RerturnLocalPlayer() {
__int64 player = GetLocalPlayer_EX();// __Int64 GetLocalPlayer_EX() is a function that return type __int64 value
return player;
}
in main.h:
extern "C" {
__declspec(dllexport) __int64 RerturnLocalPlayer();
}
mt function
extern "C" {
__declspec(dllexport) __int64 GetLocalPlayer_EX()
{
DWORD64 pClientGameContext = *(DWORD64*)OFFSET_CLIENTGAMECONTEXT;
if (!(pClientGameContext)) return 0;
DWORD64 pPlayerManager = *(DWORD64*)(pClientGameContext + 0x68);
if (!(pPlayerManager)) return 0;
DWORD64 pObfuscationMgr = *(DWORD64*)OFFSET_ObfuscationMgr;
if (!(pObfuscationMgr)) return 0;
DWORD64 LocalPlayerListXorValue = *(DWORD64*)((DWORD64)pPlayerManager + 0xF0);
DWORD64 LocalPlayerListKey = LocalPlayerListXorValue ^ *(DWORD64 *)(pObfuscationMgr + 0x70);
hashtable<DWORD64>* table = (hashtable<DWORD64>*)(pObfuscationMgr + 8);
hashtable_iterator<DWORD64> iterator = { 0 };
hashtable_find(table, &iterator, LocalPlayerListKey);
if (iterator.mpNode == table->mpBucketArray[table->mnBucketCount])
return 0;
DWORD64 EncryptedPlayerMgr = (DWORD64)iterator.mpNode->mValue.second;
if (!(EncryptedPlayerMgr)) return 0;
DWORD MaxPlayerCount = *(DWORD *)(EncryptedPlayerMgr + 0x18);
if (MaxPlayerCount != 1) return 0;
return EncryptedPlayerMgr__GetPlayer(EncryptedPlayerMgr, 0);
}
}
C# Code:
[System.Runtime.InteropServices.DllImportAttribute("BFClient1.dll", EntryPoint = "RerturnLocalPlayer",
CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
public static extern Int64 RerturnLocalPlayer();
Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
Console.WriteLine("LocalPlayer " + localp.ToString("X"));
the problem is when i run my c# application my console open and after 3 seconds close and sometimes get error: **Attempt to read or write to protected memory. Usually, this is an indication that another memory is damaged.
can some one try help me?
c# c++ c++11 visual-c++ c#-4.0
NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
1
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declaresstdcall
calling convention, but your compiled C++ function exports quite possibly usecdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.
– elgonzo
Nov 10 at 17:25
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
i write a dll that is injected on game and return my localplayer and listArrayplayer on server. Ok work fine
code dll project:
C++ code:
__int64 RerturnLocalPlayer() {
__int64 player = GetLocalPlayer_EX();// __Int64 GetLocalPlayer_EX() is a function that return type __int64 value
return player;
}
in main.h:
extern "C" {
__declspec(dllexport) __int64 RerturnLocalPlayer();
}
mt function
extern "C" {
__declspec(dllexport) __int64 GetLocalPlayer_EX()
{
DWORD64 pClientGameContext = *(DWORD64*)OFFSET_CLIENTGAMECONTEXT;
if (!(pClientGameContext)) return 0;
DWORD64 pPlayerManager = *(DWORD64*)(pClientGameContext + 0x68);
if (!(pPlayerManager)) return 0;
DWORD64 pObfuscationMgr = *(DWORD64*)OFFSET_ObfuscationMgr;
if (!(pObfuscationMgr)) return 0;
DWORD64 LocalPlayerListXorValue = *(DWORD64*)((DWORD64)pPlayerManager + 0xF0);
DWORD64 LocalPlayerListKey = LocalPlayerListXorValue ^ *(DWORD64 *)(pObfuscationMgr + 0x70);
hashtable<DWORD64>* table = (hashtable<DWORD64>*)(pObfuscationMgr + 8);
hashtable_iterator<DWORD64> iterator = { 0 };
hashtable_find(table, &iterator, LocalPlayerListKey);
if (iterator.mpNode == table->mpBucketArray[table->mnBucketCount])
return 0;
DWORD64 EncryptedPlayerMgr = (DWORD64)iterator.mpNode->mValue.second;
if (!(EncryptedPlayerMgr)) return 0;
DWORD MaxPlayerCount = *(DWORD *)(EncryptedPlayerMgr + 0x18);
if (MaxPlayerCount != 1) return 0;
return EncryptedPlayerMgr__GetPlayer(EncryptedPlayerMgr, 0);
}
}
C# Code:
[System.Runtime.InteropServices.DllImportAttribute("BFClient1.dll", EntryPoint = "RerturnLocalPlayer",
CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
public static extern Int64 RerturnLocalPlayer();
Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
Console.WriteLine("LocalPlayer " + localp.ToString("X"));
the problem is when i run my c# application my console open and after 3 seconds close and sometimes get error: **Attempt to read or write to protected memory. Usually, this is an indication that another memory is damaged.
can some one try help me?
c# c++ c++11 visual-c++ c#-4.0
i write a dll that is injected on game and return my localplayer and listArrayplayer on server. Ok work fine
code dll project:
C++ code:
__int64 RerturnLocalPlayer() {
__int64 player = GetLocalPlayer_EX();// __Int64 GetLocalPlayer_EX() is a function that return type __int64 value
return player;
}
in main.h:
extern "C" {
__declspec(dllexport) __int64 RerturnLocalPlayer();
}
mt function
extern "C" {
__declspec(dllexport) __int64 GetLocalPlayer_EX()
{
DWORD64 pClientGameContext = *(DWORD64*)OFFSET_CLIENTGAMECONTEXT;
if (!(pClientGameContext)) return 0;
DWORD64 pPlayerManager = *(DWORD64*)(pClientGameContext + 0x68);
if (!(pPlayerManager)) return 0;
DWORD64 pObfuscationMgr = *(DWORD64*)OFFSET_ObfuscationMgr;
if (!(pObfuscationMgr)) return 0;
DWORD64 LocalPlayerListXorValue = *(DWORD64*)((DWORD64)pPlayerManager + 0xF0);
DWORD64 LocalPlayerListKey = LocalPlayerListXorValue ^ *(DWORD64 *)(pObfuscationMgr + 0x70);
hashtable<DWORD64>* table = (hashtable<DWORD64>*)(pObfuscationMgr + 8);
hashtable_iterator<DWORD64> iterator = { 0 };
hashtable_find(table, &iterator, LocalPlayerListKey);
if (iterator.mpNode == table->mpBucketArray[table->mnBucketCount])
return 0;
DWORD64 EncryptedPlayerMgr = (DWORD64)iterator.mpNode->mValue.second;
if (!(EncryptedPlayerMgr)) return 0;
DWORD MaxPlayerCount = *(DWORD *)(EncryptedPlayerMgr + 0x18);
if (MaxPlayerCount != 1) return 0;
return EncryptedPlayerMgr__GetPlayer(EncryptedPlayerMgr, 0);
}
}
C# Code:
[System.Runtime.InteropServices.DllImportAttribute("BFClient1.dll", EntryPoint = "RerturnLocalPlayer",
CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
public static extern Int64 RerturnLocalPlayer();
Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
Console.WriteLine("LocalPlayer " + localp.ToString("X"));
the problem is when i run my c# application my console open and after 3 seconds close and sometimes get error: **Attempt to read or write to protected memory. Usually, this is an indication that another memory is damaged.
can some one try help me?
c# c++ c++11 visual-c++ c#-4.0
c# c++ c++11 visual-c++ c#-4.0
edited Nov 11 at 12:59
asked Nov 10 at 16:56
CerraossoUC
134
134
NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
1
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declaresstdcall
calling convention, but your compiled C++ function exports quite possibly usecdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.
– elgonzo
Nov 10 at 17:25
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13
add a comment |
NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
1
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declaresstdcall
calling convention, but your compiled C++ function exports quite possibly usecdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.
– elgonzo
Nov 10 at 17:25
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13
NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
1
1
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declares
stdcall
calling convention, but your compiled C++ function exports quite possibly use cdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.– elgonzo
Nov 10 at 17:25
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declares
stdcall
calling convention, but your compiled C++ function exports quite possibly use cdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.– elgonzo
Nov 10 at 17:25
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13
add a comment |
1 Answer
1
active
oldest
votes
up vote
0
down vote
__int64 RerturnLocalPlayer()
is a function that returns a 64-bit value through some calling convention. You seem to think it's stdcall
, I think you're wrong. However I don't have your source code so you can bang your head against that wall on your own.
public static extern Int64 RerturnLocalPlayer();
is the right definition (again, calling convention aside, there's no 64-bit register on the 32-bit CPU, so it won't be stdcall
).
However, Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
is just plain bonkers. You're already getting your integer straight from the marshaller as a return value, use it as such! This would be the correct way of calling your function:
Int64 localp = RerturnLocalPlayer();
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
0
down vote
__int64 RerturnLocalPlayer()
is a function that returns a 64-bit value through some calling convention. You seem to think it's stdcall
, I think you're wrong. However I don't have your source code so you can bang your head against that wall on your own.
public static extern Int64 RerturnLocalPlayer();
is the right definition (again, calling convention aside, there's no 64-bit register on the 32-bit CPU, so it won't be stdcall
).
However, Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
is just plain bonkers. You're already getting your integer straight from the marshaller as a return value, use it as such! This would be the correct way of calling your function:
Int64 localp = RerturnLocalPlayer();
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
add a comment |
up vote
0
down vote
__int64 RerturnLocalPlayer()
is a function that returns a 64-bit value through some calling convention. You seem to think it's stdcall
, I think you're wrong. However I don't have your source code so you can bang your head against that wall on your own.
public static extern Int64 RerturnLocalPlayer();
is the right definition (again, calling convention aside, there's no 64-bit register on the 32-bit CPU, so it won't be stdcall
).
However, Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
is just plain bonkers. You're already getting your integer straight from the marshaller as a return value, use it as such! This would be the correct way of calling your function:
Int64 localp = RerturnLocalPlayer();
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
add a comment |
up vote
0
down vote
up vote
0
down vote
__int64 RerturnLocalPlayer()
is a function that returns a 64-bit value through some calling convention. You seem to think it's stdcall
, I think you're wrong. However I don't have your source code so you can bang your head against that wall on your own.
public static extern Int64 RerturnLocalPlayer();
is the right definition (again, calling convention aside, there's no 64-bit register on the 32-bit CPU, so it won't be stdcall
).
However, Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
is just plain bonkers. You're already getting your integer straight from the marshaller as a return value, use it as such! This would be the correct way of calling your function:
Int64 localp = RerturnLocalPlayer();
__int64 RerturnLocalPlayer()
is a function that returns a 64-bit value through some calling convention. You seem to think it's stdcall
, I think you're wrong. However I don't have your source code so you can bang your head against that wall on your own.
public static extern Int64 RerturnLocalPlayer();
is the right definition (again, calling convention aside, there's no 64-bit register on the 32-bit CPU, so it won't be stdcall
).
However, Int64 localp = NativeMemory.Read<Int64> (RerturnLocalPlayer());
is just plain bonkers. You're already getting your integer straight from the marshaller as a return value, use it as such! This would be the correct way of calling your function:
Int64 localp = RerturnLocalPlayer();
answered Nov 10 at 20:14
Blindy
43.1k765107
43.1k765107
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
add a comment |
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
i update and add my functionon description
– CerraossoUC
Nov 11 at 19:13
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
@CerraossoUC, ok and? Is it still a problem? Have you tried my suggestion? I still see the same native memory read call in your updated code.
– Blindy
Nov 12 at 16:09
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
yes, i forget to remove nativememory from description, but i tried Int64 localp = RerturnLocalPlayer(); but have same problem nothing happend and close my app. and yes, i change from StdCall) to CallingConvention.Cdecl). =/
– CerraossoUC
Nov 13 at 11:18
add a comment |
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NativeMemory.Read<Int64> interprets the return value of your function as pointer to an int64 value and reads the value it points to. If this really the case?
– Klaus Gütter
Nov 10 at 17:08
1
Note that if your native library is compiled as x86 (32-bit) code, you might have a mismatching calling convention (your P/Invoke declares
stdcall
calling convention, but your compiled C++ function exports quite possibly usecdecl
calling convention.) Suggested recommendation to fix/avoid such situations: state the calling convention for your exported C/C++ functions explicitly in main.h, and then use the same calling convention in your P/Invoke declaration.– elgonzo
Nov 10 at 17:25
Klaus Gütter yes is a function to read int64, but i dont need this function.
– CerraossoUC
Nov 10 at 18:13