LunaHook-mirror/LunaHook/engine32/VALKYRIA.cpp

#include"VALKYRIA.h"
 
bool VALKYRIA::attach_function() {
    auto addr=findiatcallormov((DWORD)GetTextExtentPoint32A,processStartAddress,processStartAddress, processStopAddress);
    ConsoleOutput("%p",addr);
    if(addr==0)return false;
    BYTE sehstart[]={
      0x6a,0xff,
      0x68,XX4,
      0x64,0xa1,0,0,0,0,
      0x50,
      0x81,0xec,XX4,
      0xa1,XX4
    };
    addr=reverseFindBytes(sehstart,sizeof(sehstart),addr-0x400,addr,0,true);
    if(addr==0)return false;
    HookParam hp;
    hp.address=addr;
    hp.type=USING_STRING;
    hp.offset=get_stack(5);
    hp.filter_fun=[](void* data, size_t* len, HookParam* hp){
      //实际上是单字符
      auto str=std::string((char*)data,*len);
      if(str=="\\r"||str=="\\R")
         write_string_overwrite(data,len,"\n");
      return true;
    //   switch ( v12 )
    // {
    //   case 'U':
    //   case 'u':
    //     String[0] = strtol(a6 + 2, 0, 16);
    //     String[1] = 0;
    //     HIBYTE(v92) = v14;
    //     LOWORD(v92) = a4;
    //     BYTE2(v92) = BYTE2(a4);
    //     return sub_454C40(a2, a3, v92, a5, String, (int)lprcDst, a8);
    //   case 'R':
    //   case 'r':
    //     sub_453E20();
    //     return 0;
    //   case '\\':
    //     wcscpy(String, L"\\");
    //     HIBYTE(v91) = HIBYTE(this);
    //     LOWORD(v91) = a4;
    //     BYTE2(v91) = BYTE2(a4);
    //     return sub_454C40(a2, a3, v91, a5, String, (int)a7, a8);
    // }
    };
    return NewHook(hp,"VALKYRIA");
}