Added: D3D9 project and Window creation

GDP/D3D9/Window.cpp

@@ -0,0 +1,94 @@
+#include "Window.h"
+
+INT Window::init(HINSTANCE hInstance, UINT width, UINT height)
+{
+	// 1. describe window class
+	WNDCLASS wc = {};
+	wc.hInstance = hInstance;
+	wc.lpszClassName = TEXT("D3D9");
+	wc.lpfnWndProc = WindowProc; // callback function for windows to communicate with our application
+	wc.hbrBackground = CreateSolidBrush(RGB(0, 255, 0));
+	wc.hCursor = LoadCursor(nullptr, IDC_ARROW);
+	wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION);
+	wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // technical behaviour
+
+	// 2. register window class
+	if (!RegisterClass(&wc)) return 100;
+
+	// 3. adjust window size (optional)
+	DWORD style = {};
+	style = WS_OVERLAPPEDWINDOW; // window with border & title
+	//style = WS_POPUP; // plain window without any decorations
+
+	// fullscreen
+	//width = GetSystemMetrics(SM_CXVIRTUALSCREEN);
+	//height = GetSystemMetrics(SM_CYVIRTUALSCREEN);
+
+	RECT rect = { 100, 100, 100 + width, 100 + height }; // left-top corner, right-bottom corner
+	AdjustWindowRect(&rect, style, FALSE);
+
+	// 4. create window instance
+	_hWnd = CreateWindow(
+		wc.lpszClassName, // class name of window class to be instantiated
+		wc.lpszClassName, // window title
+		style, // visual style
+		rect.left, rect.top, // left-top corner position
+		rect.right - rect.left, rect.bottom - rect.top, // window size
+		nullptr, // handle to parent window
+		nullptr, // handle to menu instance
+		hInstance,
+		nullptr // pointer to optional parameter
+	);
+	if (_hWnd == nullptr) return 110;
+
+	// 5. show window
+	ShowWindow(_hWnd, SW_SHOW);
+	SetFocus(_hWnd);
+
+	return 0;
+}
+
+BOOL Window::run()
+{
+	// 6. run window
+	// GetMessage - synchronous call which holds until a new message arrives
+	// PeekMessage - get last message from message queue or nothing if there is no one left
+	// TranslateMessage - translates keyboard input (scan code -> virtual key code)
+	// DispatchMessage - send message to WindowProcedure
+
+	MSG msg = {};
+	if (PeekMessage(&msg, nullptr, 0, UINT_MAX, PM_REMOVE))
+	{
+		TranslateMessage(&msg);
+		DispatchMessage(&msg);
+	}
+
+	return msg.message != WM_QUIT;
+}
+
+void Window::deInit()
+{
+}
+
+LRESULT WindowProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
+{
+	switch (msg)
+	{
+	case WM_CLOSE:
+		DestroyWindow(hWnd);
+		return 0;
+
+	case WM_DESTROY:
+		PostQuitMessage(0);
+		return 0;
+
+	case WM_KEYDOWN:
+		if (wParam == VK_ESCAPE) DestroyWindow(hWnd);
+		return 0;
+
+	default:
+		break;
+	}
+
+	return DefWindowProc(hWnd, msg, wParam, lParam);
+}