main.cpp

《Visual C++串口通信开发入门与编程实践》（源码） 本书着重介绍计算机串口通信的硬件原理、软件开发和工程实例。案例式教学

#include <windows.h>
#include <tchar.h>

char MyClass[]="MyClass";

LRESULT CALLBACK	WndProc(HWND, UINT, WPARAM, LPARAM);

int APIENTRY _tWinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPTSTR    lpCmdLine,
                     int       nCmdShow)
{

	MSG msg;
	WNDCLASSEX wcex;
	wcex.cbSize = sizeof(WNDCLASSEX); 
	wcex.style			= CS_HREDRAW | CS_VREDRAW;
	wcex.lpfnWndProc	= (WNDPROC)WndProc;
	wcex.cbClsExtra		= 0;
	wcex.cbWndExtra		= 0;
	wcex.hInstance		= hInstance;
	wcex.hCursor		= LoadCursor(NULL, IDC_ARROW);
	wcex.hbrBackground	= (HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName	= MyClass;
	wcex.lpszClassName	= MyClass;
	wcex.hIcon			= NULL;
	wcex.hIconSm		= NULL;


	if (!RegisterClassEx(&wcex)) return 1;

	HWND hWnd = CreateWindow(MyClass, "WindowTitle", WS_OVERLAPPEDWINDOW,
		CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);

	if (!hWnd) return 2;

	ShowWindow(hWnd, nCmdShow);
	UpdateWindow(hWnd);

	while (GetMessage(&msg, NULL, 0, 0)) 
	{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
	}

	return (int) msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	switch (message) 
	{

	case WM_DESTROY:
			PostQuitMessage(0);
		break;
	default:
		return DefWindowProc(hWnd, message, wParam, lParam);
	}
	return 0;
}