vc程序设计--对键盘与鼠标的响应(1)

// WindowsProject2.cpp : 定义应用程序的入口点。

//

/**

 * 当按下CTRL键时输出信息：CTRL键被压下

 * 当按下K键时输出信息：K键被压下

 * 当按下CTRL+K键时输出信息：CTRL+K键被压下

*/

#include "framework.h"

#include "WindowsProject2.h"

#define MAX_LOADSTRING 100

#define MAXLINE 1000   //最多行数

#define MAXNUMCHAR 10//一行中最多的字符

// 全局变量:

HINSTANCE hInst;                                // 当前实例

WCHAR szTitle[MAX_LOADSTRING];                  // 标题栏文本

WCHAR szWindowClass[MAX_LOADSTRING];            // 主窗口类名

// 此代码模块中包含的函数的前向声明:

ATOM                MyRegisterClass(HINSTANCE hInstance);

BOOL                InitInstance(HINSTANCE, int);

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

INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);

int APIENTRY wWinMain(_In_ HINSTANCE hInstance,

	_In_opt_ HINSTANCE hPrevInstance,

	_In_ LPWSTR    lpCmdLine,

	_In_ int       nCmdShow)

{

	UNREFERENCED_PARAMETER(hPrevInstance);

	UNREFERENCED_PARAMETER(lpCmdLine);

	// TODO: 在此处放置代码。

	// 初始化全局字符串

	LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);

	LoadStringW(hInstance, IDC_WINDOWSPROJECT2, szWindowClass, MAX_LOADSTRING);

	MyRegisterClass(hInstance);

	// 执行应用程序初始化:

	if (!InitInstance(hInstance, nCmdShow))

	{

		return FALSE;

	}

	HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_WINDOWSPROJECT2));

	MSG msg;

	// 主消息循环:

	while (GetMessage(&msg, nullptr, 0, 0))

	{

		if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))

		{

			TranslateMessage(&msg);

			DispatchMessage(&msg);

		}

	}

	return (int)msg.wParam;

}

//

//  函数: MyRegisterClass()

//

//  目标: 注册窗口类。

//

ATOM MyRegisterClass(HINSTANCE hInstance)

{

	WNDCLASSEXW wcex;

	wcex.cbSize = sizeof(WNDCLASSEX);

	wcex.style = CS_HREDRAW | CS_VREDRAW;

	wcex.lpfnWndProc = WndProc;

	wcex.cbClsExtra = 0;

	wcex.cbWndExtra = 0;

	wcex.hInstance = hInstance;

	wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WINDOWSPROJECT2));

	wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);

	wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);

	wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_WINDOWSPROJECT2);

	wcex.lpszClassName = szWindowClass;

	wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

	return RegisterClassExW(&wcex);

}

//

//   函数: InitInstance(HINSTANCE, int)

//

//   目标: 保存实例句柄并创建主窗口

//

//   注释:

//

//        在此函数中，我们在全局变量中保存实例句柄并

//        创建和显示主程序窗口。

//

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)

{

	hInst = hInstance; // 将实例句柄存储在全局变量中

	HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,

		CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);

	if (!hWnd)

	{

		return FALSE;

	}

	ShowWindow(hWnd, nCmdShow);

	UpdateWindow(hWnd);

	return TRUE;

}

//

//  函数: WndProc(HWND, UINT, WPARAM, LPARAM)

//

//  目标: 处理主窗口的消息。

//

//  WM_COMMAND  - 处理应用程序菜单

//  WM_PAINT    - 绘制主窗口

//  WM_DESTROY  - 发送退出消息并返回

//

//

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

{

	int wmId = LOWORD(wParam),

		wmEvent = HIWORD(wParam);

	PAINTSTRUCT ps;

	HDC hdc;

	LPTSTR dispInfo[4] = {L"CTRL键被压下",

L"K键被压下",L"CTRL+K键被压下",L"" };

	static int index = 3;

	COLORREF color[3] = { 0x00000000,0x00ff0000,0x000000ff };

	switch (message)

	{

	case WM_KEYDOWN:

		if (wmId == VK_CONTROL)

		{

			index = 0;

		}

		InvalidateRect(hWnd, NULL, true);

		break;

	case WM_CHAR:

		if (wmId == 'K' || wmId == 'k')	index = 1;

		else if (wmId == 'K' - 64) index = 2;

		//CRTL与字母键的组合的wParam的值为1-26，且与字母大小写无关

		else

			index = 3;

		InvalidateRect(hWnd, NULL, true);

		break;

	case WM_PAINT:

		hdc = BeginPaint(hWnd, &ps);

		SetTextColor(hdc, color[index]);		   		TextOut(hdc, 0, 0, dispInfo[index], _tcslen(dispInfo[index]));

		EndPaint(hWnd, &ps);

		break;

	case WM_DESTROY:

		PostQuitMessage(0);

		break;

	default:

		return DefWindowProc(hWnd, message, wParam, lParam);

	}

	return 0;

}

	// “关于”框的消息处理程序。

	INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)

	{

		UNREFERENCED_PARAMETER(lParam);

		switch (message)

		{

		case WM_INITDIALOG:

			return (INT_PTR)TRUE;

		case WM_COMMAND:

			if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)

			{

				EndDialog(hDlg, LOWORD(wParam));

				return (INT_PTR)TRUE;

			}

			break;

		}

		return (INT_PTR)FALSE;

	}