C和D中相同的_exact_代码给出不同的结果 – 为什么？

当我运行这个C代码：

// Get rid of the CRT and stuff; we don't need it #pragma comment(linker, "/Entry:mainCRTStartup") #pragma comment(linker, "/NoDefaultLib:msvcrt.lib") #pragma comment(linker, "/NoDefaultLib:kernel32.lib") #pragma comment(linker, "/NoDefaultLib:ntdll.lib") #pragma comment(linker, "/Subsystem:Console") #pragma comment(lib, "user32.lib") #include <windows.h> int mainCRTStartup() { MSG msg; HWND hWndParent; WNDCLASS wndClass = { 0, &DefWindowProc, 0, 0, NULL, NULL, LoadCursor(NULL, IDC_ARROW), GetSysColorBrush(COLOR_3DFACE), NULL, TEXT("MyClass") }; RegisterClass(&wndClass); hWndParent = CreateWindow( wndClass.lpszClassName, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, 0, 0, 33, 100, NULL, NULL, NULL, NULL); CreateWindow(TEXT("Button"), wndClass.lpszClassName, WS_VISIBLE | WS_CHILD | BS_GROUPBOX, 5, 5, 100, 50, hWndParent, NULL, NULL, NULL); while (GetMessage(&msg, hWndParent, 0, 0) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; } 

我得到：

但是当我运行等效的 D代码时：

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 // Again, get rid of the runtime pragma(startaddress, mainCRTStartup); pragma(lib, "dmd_win32.lib"); import win32.windows; int mainCRTStartup() { MSG msg; HWND hWndParent; WNDCLASS wndClass = { 0, &DefWindowProc, 0, 0, NULL, NULL, LoadCursor(NULL, IDC_ARROW), GetSysColorBrush(COLOR_3DFACE), NULL, "MyClass" }; RegisterClass(&wndClass); hWndParent = CreateWindow( wndClass.lpszClassName, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, 0, 0, 33, 100, NULL, NULL, NULL, NULL); CreateWindow("Button", wndClass.lpszClassName, WS_VISIBLE | WS_CHILD | BS_GROUPBOX, 5, 5, 100, 50, hWndParent, NULL, NULL, NULL); while (GetMessage(&msg, hWndParent, 0, 0) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; } 

我得到：

我很困惑…什么可能导致这个白色的背景？

编辑：

我不确定它实际上是一个库错误…我只是删除依赖项（我没有看到任何代码错误），但问题仍然存在：

 version = Unicode; extern(Windows): alias void* HWND, HMENU, HINSTANCE, HCURSOR, HBRUSH, HICON; alias ushort ATOM, WORD; alias uint UINT, DWORD; alias int[2] POINT; alias int BOOL; alias int LONG; alias size_t WPARAM, LPARAM, LRESULT; alias char* LPSTR; alias const(char)* LPCSTR; alias wchar* LPWSTR; alias const(wchar)* LPCWSTR; version(Unicode) { alias LPCWSTR LPCTSTR; alias LPWSTR LPTSTR; alias GetMessageW GetMessage; alias CreateWindowExW CreateWindowEx; alias DispatchMessageW DispatchMessage; alias DefWindowProcW DefWindowProc; alias LoadCursorW LoadCursor; alias RegisterClassW RegisterClass; alias WNDCLASSW WNDCLASS; } else { alias LPCSTR LPCTSTR; alias LPSTR LPTSTR; alias GetMessageA GetMessage; alias CreateWindowExA CreateWindowEx; alias DispatchMessageA DispatchMessage; alias DefWindowProcA DefWindowProc; alias LoadCursorA LoadCursor; alias RegisterClassA RegisterClass; alias WNDCLASSA WNDCLASS; } LPCTSTR MAKEINTATOM(ATOM atom) { return cast(LPCTSTR)atom; } ATOM RegisterClassA(WNDCLASSA*); ATOM RegisterClassW(WNDCLASSW*); HCURSOR LoadCursorA(HINSTANCE, LPCSTR); HCURSOR LoadCursorW(HINSTANCE, LPCWSTR); LRESULT DefWindowProcA(HWND, UINT, WPARAM, LPARAM); LRESULT DefWindowProcW(HWND, UINT, WPARAM, LPARAM); BOOL GetMessageA(const(MSG)*, HWND, UINT, UINT); BOOL GetMessageW(const(MSG)*, HWND, UINT, UINT); LONG DispatchMessageA(const(MSG)*); LONG DispatchMessageW(const(MSG)*); BOOL TranslateMessage(const(MSG)*); HWND CreateWindowExA(int, LPCSTR, LPCSTR, DWORD, int, int, int, int, HWND, HMENU, HINSTANCE, void*); HWND CreateWindowExW(int, LPCWSTR, LPCWSTR, DWORD, int, int, int, int, HWND, HMENU, HINSTANCE, void*); HBRUSH GetSysColorBrush(int); alias LRESULT function(HWND, UINT, WPARAM, LPARAM) WNDPROC; enum { NULL = null, COLOR_3DFACE = 15, BS_GROUPBOX = 7, } const LPCTSTR IDC_ARROW = cast(LPCTSTR)32512; struct MSG { HWND hwnd; UINT message; WPARAM wParam; LPARAM lParam; DWORD time; POINT pt; } struct WNDCLASSA { UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HINSTANCE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCSTR lpszMenuName; LPCSTR lpszClassName; } struct WNDCLASSW { UINT style; WNDPROC lpfnWndProc; int cbClsExtra; int cbWndExtra; HINSTANCE hInstance; HICON hIcon; HCURSOR hCursor; HBRUSH hbrBackground; LPCWSTR lpszMenuName; LPCWSTR lpszClassName; } enum { WS_OVERLAPPED = 0, WS_TILED = WS_OVERLAPPED, WS_MAXIMIZEBOX = 0x00010000, WS_MINIMIZEBOX = 0x00020000, WS_TABSTOP = 0x00010000, WS_GROUP = 0x00020000, WS_THICKFRAME = 0x00040000, WS_SIZEBOX = WS_THICKFRAME, WS_SYSMENU = 0x00080000, WS_HSCROLL = 0x00100000, WS_VSCROLL = 0x00200000, WS_DLGFRAME = 0x00400000, WS_BORDER = 0x00800000, WS_CAPTION = 0x00c00000, WS_OVERLAPPEDWINDOW = WS_OVERLAPPED|WS_CAPTION|WS_SYSMENU|WS_THICKFRAME|WS_MINIMIZEBOX|WS_MAXIMIZEBOX, WS_TILEDWINDOW = WS_OVERLAPPEDWINDOW, WS_MAXIMIZE = 0x01000000, WS_CLIPCHILDREN = 0x02000000, WS_CLIPSIBLINGS = 0x04000000, WS_DISABLED = 0x08000000, WS_VISIBLE = 0x10000000, WS_MINIMIZE = 0x20000000, WS_ICONIC = WS_MINIMIZE, WS_CHILD = 0x40000000, WS_CHILDWINDOW = 0x40000000, WS_POPUP = 0x80000000, WS_POPUPWINDOW = WS_POPUP|WS_BORDER|WS_SYSMENU, } pragma(startaddress, mainCRTStartup); int mainCRTStartup() { MSG msg; HWND hWndParent; WNDCLASS wndClass = { 0, &DefWindowProc, 0, 0, NULL, NULL, LoadCursor(NULL, IDC_ARROW), GetSysColorBrush(COLOR_3DFACE), NULL, "MyClass" }; ATOM atom = RegisterClass(&wndClass); hWndParent = CreateWindowEx( 0, wndClass.lpszClassName, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, 0, 0, 33, 100, NULL, NULL, NULL, NULL); CreateWindowEx(0, "Button", wndClass.lpszClassName, WS_VISIBLE | WS_CHILD | BS_GROUPBOX, 5, 5, 100, 50, hWndParent, NULL, NULL, NULL); while (GetMessage(&msg, hWndParent, 0, 0) > 0) { TranslateMessage(&msg); DispatchMessage(&msg); } return 0; } 

无论是我做错了什么，或者是一个编译器错误…但即使是编译器错误，我仍然不知道如何可能发生这样的事情，因为它需要调用非常具体的API！ 想法？