[Naydef]

Hello everyone,
Dhooks with detours is great extension for saving me time when i want to hook functions, but i have a great problem when i try to post hook a function

Description:
I'm hooking non-virtual member function and when I use a pre hook, it works fine and prints the message in the test plugin, but the return value is invalid(expected, because original function is not called). When I try to use post hook, when i try to build a building, it crashes the server. I firstly used detours6 version, then after the crash i updated to detours7, but crashes still occurs.

Test plugin:

PHP Code:

#pragma semicolon 1

#include <sourcemod>
#include <sdktools>
#include <sdkhooks>
#include <tf2>
#include <tf2_stocks>
#include <dhooks>

#pragma newdecls required

#define PLUGIN_NAME     "Build on buildings plugin"
#define PLUGIN_AUTHOR   "Naydef"
#define PLUGIN_VERSION  "1.0"

public Plugin myinfo =
{
    name = PLUGIN_NAME,
    author = PLUGIN_AUTHOR,
    version = PLUGIN_VERSION,
};

Handle hDetourIsPlacementPosValid;

public void OnPluginStart()
{
    Handle gamedatafile=LoadGameConfigFile("buildonbuildings_defs.games");
    if(gamedatafile==null)
    {
        SetFailState("Cannot find file buildonbuildings_defs.games!");
    }
    hDetourIsPlacementPosValid=DHookCreateDetour(Address_Null, CallConv_THISCALL, ReturnType_Bool, ThisPointer_CBaseEntity);
    if(hDetourIsPlacementPosValid==null)
    {
        SetFailState("Failed to create CBaseObject::IsPlacementPosValid detour!");
    }
    // Load the address of the function from PTaH's signature gamedata file.
    if(!DHookSetFromConf(hDetourIsPlacementPosValid, gamedatafile, SDKConf_Signature, "CBaseObject::IsPlacementPosValid"))
    {
        SetFailState("Failed to load CBaseObject::IsPlacementPosValid signature from gamedata");
    }
    delete gamedatafile;
    
    // Add a post hook on the function.
    //if(!DHookEnableDetour(hDetourIsPlacementPosValid, false, Detour_IsPlacementPosValid)) // Not crashing
          if(!DHookEnableDetour(hDetourIsPlacementPosValid, true, Detour_IsPlacementPosValid)) // Crashing
    {
        SetFailState("Failed to detour CBaseObject::IsPlacementPosValid!");
    }
}

public MRESReturn Detour_IsPlacementPosValid(int pThis, Handle hReturn, Handle hParams)
{
    if(pThis==-1)
    {
        return MRES_Ignored;
    }
    /*
    if(DHookGetReturn(hReturn))
    {
        return MRES_Ignored;
    }
    */
    //bool result=false;
    
    PrintToChatAll("Placement pos valid for: %i is %i", pThis, DHookGetReturn(hReturn));
    //DHookSetReturn(hReturn, result);
    //return MRES_ChangedOverride;
    return MRES_Ignored;
} 


The gamedata:

PHP Code:

"Games"
{
    "#default"
    {
        "Signatures"
        {
            "CBaseObject::IsPlacementPosValid"
            {
                "library"        "server"
                "windows"        "\x53\x8b\xdc\x83\xec\x08\x83\xe4\xf0\x83\xc4\x04\x55\x8b\x6b\x04\x89\x6c\x24\x04\x8b\xec\x81\xec\x48\x01\x00\x00\x56\x57\x8b\xf9\x8b\x07\x8b\x80\x18"
                "linux"            "_ZN11CBaseObject19IsPlacementPosValidEv"
            }
        }
    }
} 


Info:
DHooks with detours(detours6, upgraded to detours7)
Sourcemod 1.8.0.6028
Windows platform
Accelerator crash report from detours6 - https://crash.limetech.org/jag75n4rfrem
Accelerator crash report from detours7 - https://crash.limetech.org/rb6m2np5yorp

The crash looks to me like a NULL pointer problem

Edit:
The functions is actually a virtual function, but i doubt this will create cause the crash.