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+--- Thread: How to call a function an address? (/showthread.php?tid=2158)
How to call a function an address? - oukibt - 2021-07-06
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/582915540285128725/862083931314585630/unknown.png
I think, this is GetConsoleVariableInt function
RE: How to call a function an address? - SimoSbara - 2021-07-14
(2021-07-06, 09:36 PM)oukibt Wrote: 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/582915540285128725/862083931314585630/unknown.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.