c++ - 未记录的 WinAPI : LoadLibrary16 and GetProcAddress16

Question

typedef void (WINAPI *voidfunc)(void);
typedef HMODULE (WINAPI *strfunc1)(char*);
typedef HMODULE (WINAPI *strfunc2)(void*,char*);
int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);
    HMODULE kernel=GetModuleHandleA("kernel32.dll");
    if(!kernel)return 1;
    strfunc1 LoadLibrary16=(strfunc1)GetProcAddress(kernel,"LoadLibrary16");
    if(!LoadLibrary16){ 
        MessageBoxA(0,"LoadLibrary16 is not imported","err",0);
        return 1;
    }
    HMODULE user=LoadLibrary16("user.exe");
    if(!user){  
        MessageBoxA(0,"user.exe is not loaded","err",0);
        return 1;
    }
    strfunc2 GetProcAddress16=(strfunc2)GetProcAddress(kernel,"GetProcAddress16");
    if(!GetProcAddress16){  
        MessageBoxA(0,"GetProcAddress16 is not imported","err",0);
        return 1;
    }
    voidfunc enable=(voidfunc)GetProcAddress16(user,"EnableOemLayer");
    voidfunc disable=(voidfunc)GetProcAddress16(user,"DisableOemLayer");
    if(!(enable&&disable))return 1;
    disable();
    Sleep(5000);
    enable();

    return 0;
}

不起作用。

PS 我的操作系统是 Win 7。

PPS 首先，我简单地尝试了 LoadLibraryA，出现了错误，阅读了一下，明白我需要 16 位未记录的函数。

Answer 1

我担心 kernel32.dll 中没有 16 位函数。可以查到的函数有

LoadLibraryA
LoadLibraryExA
LoadLibraryExW
LoadLibraryW

一个有用的工具是依赖，你可以从 http://www.dependencywalker.com/