D语言值得关注

    今天偶尔关注了一下D语言。一直以来都在拿C++与C#,Java做比较，后两种对于程序员来说无疑是更顺手的，但

是效率上C++是最强的。D语言虽然刚刚萌芽，但是只看了他的简单介绍之后心里就很激动，“Great, just what I need

”。
    介绍D语言的一个中文的Blog：http://blog.youkuaiyun.com/uframer/
    D语言环境配置教程：http://www.cppblog.com/cpunion/archive/2005/11/02/892.html
    D语言官方网站：http://www.digitalmars.com/d/index.html
    D语言开源网站：http://www.dsource.org
    D语言作者的网站：http://www.walterbright.com/

    另外尝试了一下D语言win32编程，下面是一个最小的程序－－创建一个窗口：
import std.c.windows.windows;

extern (Windows) BOOL DestroyWindow(HWND hWnd);
enum { PM_REMOVE = 0x0001 }
const LPSTR IDC_ARROW = cast(LPSTR)32512;
extern (C) void *memset(void *dest, int c, size_t count);
extern (Windows) BOOL FreeLibrary(HMODULE hModule);

HWND createWindow()
{
    HINSTANCE moduleHandle = GetModuleHandleA(null);
    assert(moduleHandle);

    WNDCLASS wc;
    wc.lpszClassName = "DWndClass";
    wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
    wc.lpfnWndProc = &windowProc;
    wc.hInstance = moduleHandle;
    wc.hIcon = LoadIconA(cast(HINSTANCE)null, IDI_APPLICATION);
    wc.hCursor = LoadCursorA(cast(HINSTANCE)null, IDC_ARROW);
    wc.hbrBackground = cast(HBRUSH) (COLOR_WINDOW + 1);
    wc.lpszMenuName = null;
    wc.cbClsExtra = wc.cbWndExtra = 0;
    assert(RegisterClassA(&wc));

    RECT rect;
    rect.left = 0; rect.top = 0; rect.right = 640; rect.bottom = 480;
    AdjustWindowRect(&rect, WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU | WS_VISIBLE, FALSE);
    HWND result = CreateWindowA("DWndClass", "Just a window",
        WS_CAPTION | WS_MINIMIZEBOX | WS_SYSMENU | WS_VISIBLE,
        CW_USEDEFAULT, CW_USEDEFAULT,
        rect.right - rect.left, rect.bottom - rect.top, HWND_DESKTOP,
        cast(HMENU)null, moduleHandle, null);
    assert(result);

    return result;
}

extern (Windows) int windowProc(HWND hWnd, uint uMsg, WPARAM wParam, LPARAM lParam)
{
    if (uMsg == WM_CLOSE || uMsg == WM_DESTROY)
    {
        PostQuitMessage(0);
        return 0;
    }
    return DefWindowProcA(hWnd, uMsg, wParam, lParam);
}

bit doEvents(HWND wnd)
{
    MSG msg;
    while (PeekMessageA(&msg, null, 0, 0, PM_REMOVE))
    {
        if (WM_QUIT == msg.message) return false;
        TranslateMessage(&msg);
        DispatchMessageA(&msg);
    }
    Sleep(16);
    return true;
}


int main()
{
    HWND wnd = createWindow();
    while (true)
    {
        if (!doEvents(wnd))
            break;
    }
   
    DestroyWindow(wnd);
    return 0;
}