post.d

			int callbackGetWindows(HWND hwnd, LPARAM lParam) nothrow {
				import std.experimental.ui.internal.window;
				GetWindows* ctx = cast(GetWindows*)lParam;
				
				if (!IsWindowVisible(hwnd))
					return true;
				
				RECT rect;
				GetWindowRect(hwnd, &rect);

				if (rect.right - rect.left == 0 || rect.bottom - rect.top == 0)
					return true;

				try {
					WinAPIWindowImpl window = ctx.alloc.make!WinAPIWindowImpl(hwnd, cast(IContext)null, ctx.alloc, ctx.platform);
					
					if (ctx.display is null) {
						ctx.alloc.expandArray(ctx.windows, 1);
						ctx.windows[$-1] = window;
					} else {
						auto display2 = window.display;
						if (display2 is null) {
							ctx.alloc.dispose(window);
							return true;
						}

						if (display2.name == ctx.display.name) {
							ctx.alloc.expandArray(ctx.windows, 1);
							ctx.windows[$-1] = window;
						} else
							ctx.alloc.dispose(window);
					}
				} catch(Exception e) {}
				
				return true;
			}

pre.d

			int callbackGetWindows(HWND hwnd, LPARAM lParam) nothrow {
				import std.experimental.ui.internal.window;
				GetWindows* ctx = cast(GetWindows*)lParam;
				
				if (!IsWindowVisible(hwnd))
					return true;
				
				RECT rect;
				GetWindowRect(hwnd, &rect);

				if (rect.right - rect.left == 0 || rect.bottom - rect.top == 0)
					return true;

				try {
					WinAPIWindowImpl window = ctx.alloc.make!WinAPIWindowImpl(hwnd, cast(IContext)null, ctx.alloc, ctx.platform);
					
					if (ctx.display is null) {
						ctx.alloc.expandArray(ctx.windows, 1);
						ctx.windows[$-1] = window;
					} else {
						IDisplay display2 = (cast(IWindow)window).display;
						if (display2 is null) {
							ctx.alloc.dispose(window);
							return true;
						}

						if (display2.name == ctx.display.name) {
							ctx.alloc.expandArray(ctx.windows, 1);
							ctx.windows[$-1] = window;
						} else
							ctx.alloc.dispose(window);
					}
				} catch(Exception e) {}
				
				return true;
			}