windows10でewdk その10

概要

windows10でewdk、やってみた。
premakeで.slnと.vcxprojを作って、ewdkのclとmsbuildでcppをビルドする。
サンプル見つけたので、やってみた。

参考にしたページ

写真

premake5コード

workspace "Test2d"
	configurations { "Debug", "Release" }
	platforms { "x64" }
	location "bin"
	project "Test2d"
		kind "WindowedApp"
		language "C++"
		architecture "x64"
		targetdir "bin/%{cfg.buildcfg}"
		files { "src/**.cpp" }
		filter "configurations:Debug"
			symbols "On"
		filter "configurations:Release"
			optimize "On"
			symbols "On"

サンプルコード

#include <windows.h>
//#include <math.h>
#define _USE_MATH_DEFINES
#include <cmath>

#define WIDTH 800
#define HEIGHT 600
float theta = 0.0f;
float length = 100.0f;
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam) {
	static HDC hdc;
	static PAINTSTRUCT ps;
	static RECT rect;
	switch (msg)
	{
	case WM_PAINT:
	{
		hdc = BeginPaint(hwnd, &ps);
		GetClientRect(hwnd, &rect);
		float cx = rect.right / 2.0f;
		float cy = rect.bottom / 2.0f;
		float x = length;
		float y = 0.0f;
		float x_rot = x * cos(theta) - y * sin(theta);
		float y_rot = x * sin(theta) + y * cos(theta);
		MoveToEx(hdc, (int)cx, (int)cy, NULL);
		LineTo(hdc, (int)(cx + x_rot), (int)(cy + y_rot));
		EndPaint(hwnd, &ps);
		break;
	}
	case WM_DESTROY:
		PostQuitMessage(0);
	break;
	default:
		return DefWindowProc(hwnd, msg, wParam, lParam);
	}
	return 0;
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
	const char CLASS_NAME[] = "RotateMatrixClass";
	WNDCLASS wc = { 0 };
	wc.lpfnWndProc = WndProc;
	wc.hInstance = hInstance;
	wc.lpszClassName = TEXT("RotateMatrixClass");
	RegisterClass(&wc);
	HWND hwnd = CreateWindowExA(0, CLASS_NAME, "2D Rotation (Matrix Version)", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, WIDTH, HEIGHT, NULL, NULL, hInstance, NULL);
	ShowWindow(hwnd, nCmdShow);
	UpdateWindow(hwnd);
	MSG msg;
	while (1)
	{
		if (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE))
		{
			if (msg.message == WM_QUIT)
				break;
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
		else
		{
			theta += 0.02f;
			if (theta > 2 * M_PI)
				theta -= 2 * M_PI;
			InvalidateRect(hwnd, NULL, TRUE);
			Sleep(16);
		}
	}
	return 0;
}

以上。