86 lines
2.3 KiB
C++
86 lines
2.3 KiB
C++
#include "Window.h"
|
|
|
|
INT Window::init(HINSTANCE hInstance, UINT width, UINT height)
|
|
{
|
|
// 1. describe window class
|
|
WNDCLASS wc = {};
|
|
wc.hInstance = hInstance;
|
|
wc.lpszClassName = TEXT("D3D11"); // class name
|
|
wc.lpfnWndProc = WindowProc; // global communication (message queue) function
|
|
wc.hbrBackground = CreateSolidBrush(RGB(0, 255, 0)); // handle to background color
|
|
wc.hCursor = LoadCursor(nullptr, IDC_ARROW); // handle to cursor icon
|
|
wc.hIcon = LoadIcon(nullptr, IDI_APPLICATION); // handle to application icon
|
|
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // technical behaviour
|
|
|
|
// 2. register window class
|
|
if (!RegisterClass(&wc)) return 100;
|
|
|
|
// 3. adjust window size (optional)
|
|
|
|
|
|
// 4. create window instance
|
|
_hWnd = CreateWindow(
|
|
wc.lpszClassName, // class name
|
|
wc.lpszClassName, // window title
|
|
WS_OVERLAPPEDWINDOW, // visual style
|
|
100, 100, // window position (left-top corner)
|
|
width, height, // window size
|
|
nullptr, // optional handle to a parent window
|
|
nullptr, // optional handle to a menu instance
|
|
hInstance,
|
|
nullptr // pointer to optional parameters
|
|
);
|
|
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 to get the latest message, but holds the execution until there is a new message
|
|
// PeekMessage - return also the latest message, but also returns false if there is no message available
|
|
// TranslateMessage - translates keyboard input
|
|
// DispatchMessage - sends message to window procedure
|
|
|
|
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);
|
|
}
|