How to call a function an address?

[oukibt]

Hi I am trying to call a function at an address from a plugin but I am getting a crash.

Code:

PLUGIN_EXPORT int PLUGIN_CALL AmxLoad(AMX* amx)
{
    VirtualUnlock((LPVOID)0x48B5B0, 0x20);

    ((int(__fastcall*)(char*))0x48B5B0)("query");
    return 1;
}

https://cdn.discordapp.com/attachments/5...nknown.png

I think, this is GetConsoleVariableInt function

[SimoSbara]

Hi I am trying to call a function at an address from a plugin but I am getting a crash.

Code:

PLUGIN_EXPORT int PLUGIN_CALL AmxLoad(AMX* amx)
{
    VirtualUnlock((LPVOID)0x48B5B0, 0x20);

    ((int(__fastcall*)(char*))0x48B5B0)("query");
    return 1;
}

https://cdn.discordapp.com/attachments/5...nknown.png

I think, this is GetConsoleVariableInt function

Hi, can you show the crash log, if there is one.

Maybe you should try to cast the address with __stdcall. Another thing you can check is the return value of VirtualUnlock, if the return value is zero then you should look at GetLastError(). 

I suggest to read this documentation before doing this kind of stuff: https://docs.microsoft.com/en-us/cpp/cpp/stdcall?view=msvc-160.