Error execute MS function fputc()

[Steven Schveighoffer via Digitalmars-d-learn]

On 6/7/15 12:41 PM, MGW wrote:
> Hi, everybody!
>
> DMD32 D Compiler v2.067.0
> I try to cause the fputc function from CrtDLL.DLL and I receive a
> mistake. Why?
>
> import core.runtime;     // Загрузка DLL Для Win
> import std.stdio;        // writeln
>
> version(Windows) {
>      import std.c.windows.windows;  // GetProcAddress для Windows
> }
>
> alias extern (C) int function(int, FILE*)   t_fputc;  t_fputc ms_fputc;
>
> int main(string[] args) {
>
> version(Windows) {    auto libCrtDll = "CrtDll.dll";   }
>
>      // Load CrtDLL.DLL MS Windows
>      auto h = Runtime.loadLibrary(libCrtDll);
>      // Find function fputc
>      ms_fputc = cast(t_fputc)GetProcAddress(h, "fputc");
>
>      import core.stdc.stdio: stdout;
>      try {
>          auto rez = ms_fputc('A' , core.stdc.stdio.stdout);
>      }
>      catch {
>          writeln("Error execute MS function fputc();");
>      }
>      return 0;
> }

DMD 32-bit does not use MSVC runtime, it uses DMC (Digital Mars C++ 
Compiler) runtime. So you cannot use MSVC versions of C runtime.

You can use Win32 system calls, though.

-Steve