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MUI: Ejemplo de aplicación de configuración del sistema

La aplicación de ejemplo descrita en este tema es una sencilla aplicación Hello MUI que admite la configuración del sistema para sus idiomas de interfaz de usuario.

// Vista and later enabled application, this application will not work on OS versions prior to Vista

#include <windows.h>
#include <wchar.h>
#include <strsafe.h>
#include "resource.h"

#define SUFFICIENTLY_LARGE_STRING_BUFFER (MAX_PATH*2)
#define SUFFICIENTLY_LARGE_ERROR_BUFFER (1024*2)

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    UNREFERENCED_PARAMETER(hInstance);
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);
    UNREFERENCED_PARAMETER(nCmdShow);

    // The following code presents a hypothetical, yet common use pattern of MUI technology
    WCHAR displayBuffer[SUFFICIENTLY_LARGE_ERROR_BUFFER];

    // 1. Basic application obtains access to the proper resource container 
    // for standard Win32 resource loading this is normally a PE module - use LoadLibraryEx
    // LoadLibraryEx is the preferred alternative for resource modules as used below because it
    // provides increased security and performance over that of LoadLibrary
    HMODULE resContainer = LoadLibraryExW(HELLO_MODULE_CONTRIVED_FILE_PATH,NULL,LOAD_LIBRARY_AS_IMAGE_RESOURCE | LOAD_LIBRARY_AS_DATAFILE);
    if(!resContainer)
    {
        swprintf_s(displayBuffer,SUFFICIENTLY_LARGE_ERROR_BUFFER,L"FAILURE: Unable to load the resource container module, last error = %d.",GetLastError());
        MessageBoxW(NULL,displayBuffer,L"HelloMUI ERROR!",MB_OK | MB_ICONERROR);
        return 1; // exit
    }

    // 2. Application parses the resource container to find the appropriate item
    WCHAR szHello[SUFFICIENTLY_LARGE_STRING_BUFFER];
    if(LoadStringW(resContainer,HELLO_MUI_STR_0,szHello,SUFFICIENTLY_LARGE_STRING_BUFFER) == 0)
    {
        swprintf_s(displayBuffer,SUFFICIENTLY_LARGE_ERROR_BUFFER,L"FAILURE: Unable to load the resource string, last error = %d.",GetLastError());
        MessageBoxW(NULL,displayBuffer,L"HelloMUI ERROR!",MB_OK | MB_ICONERROR);
        FreeLibrary(resContainer);
        return 1; // exit
    }

    // 3. Application presents the discovered resource to the user via UI
    swprintf_s(displayBuffer,SUFFICIENTLY_LARGE_ERROR_BUFFER,L"%s MUI",szHello);
    MessageBoxW(NULL,displayBuffer,L"HelloMUI",MB_OK | MB_ICONINFORMATION);

    // 4. Application cleans up memory associated with the resource container after this item is no longer needed.
    if(!FreeLibrary(resContainer))
    {
        swprintf_s(displayBuffer,SUFFICIENTLY_LARGE_ERROR_BUFFER,L"FAILURE: Unable to unload the resource container, last error = %d.",GetLastError());
        MessageBoxW(NULL,displayBuffer,L"HelloMUI ERROR!",MB_OK | MB_ICONERROR);
        return 1; // exit
    }

    return 0;
}