如何在应用层获取鼠标的相对位移???
不是获得鼠标的当前坐标。
不是获得鼠标的当前坐标。
解决方案 »
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基本原理就是找个共同的坐标系,然后运算下。
//#if !defined(AFX_RAWINPUTDLG_H__6A06396D_3C8D_4A9F_BAA5_18B7998524BA__INCLUDED_)
#define AFX_RAWINPUTDLG_H__6A06396D_3C8D_4A9F_BAA5_18B7998524BA__INCLUDED_#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include <windows.h>
/////////////////////////////////////////////////////////////////////////////
// CRawInputDlg dialogclass CRawInputDlg : public CDialog
{
// Construction
public:
void DisplayData(CString strData);
void DisplayError();
CRawInputDlg(CWnd* pParent = NULL); // standard constructor// Dialog Data
//{{AFX_DATA(CRawInputDlg)
enum { IDD = IDD_RAWINPUT_DIALOG };
CListBox m_CListbox;
//}}AFX_DATA // ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CRawInputDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
virtual LRESULT DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam);
//}}AFX_VIRTUAL// Implementation
protected:
HICON m_hIcon;
CTime tmTime;
long lPix; // Generated message map functions
//{{AFX_MSG(CRawInputDlg)
virtual BOOL OnInitDialog();
afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
afx_msg void OnPaint();
afx_msg HCURSOR OnQueryDragIcon();
afx_msg void OnButton1();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.#endif // !defined(AFX_RAWINPUTDLG_H__6A06396D_3C8D_4A9F_BAA5_18B7998524BA__INCLUDED_)
//#include "stdafx.h"
#include "RawInput.h"
#include "RawInputDlg.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App Aboutclass CAboutDlg : public CDialog
{
public:
CAboutDlg();// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA // ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CRawInputDlg dialogCRawInputDlg::CRawInputDlg(CWnd* pParent /*=NULL*/)
: CDialog(CRawInputDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CRawInputDlg)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}void CRawInputDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CRawInputDlg)
DDX_Control(pDX, IDC_LIST1, m_CListbox);
//}}AFX_DATA_MAP
}BEGIN_MESSAGE_MAP(CRawInputDlg, CDialog)
//{{AFX_MSG_MAP(CRawInputDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
//}}AFX_MSG_MAP
END_MESSAGE_MAP()/////////////////////////////////////////////////////////////////////////////
// CRawInputDlg message handlersBOOL CRawInputDlg::OnInitDialog()
{
CDialog::OnInitDialog(); // Add "About..." menu item to system menu. // IDM_ABOUTBOX must be in the system command range.
ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
ASSERT(IDM_ABOUTBOX < 0xF000); CMenu* pSysMenu = GetSystemMenu(FALSE);
if (pSysMenu != NULL)
{
CString strAboutMenu;
strAboutMenu.LoadString(IDS_ABOUTBOX);
if (!strAboutMenu.IsEmpty())
{
pSysMenu->AppendMenu(MF_SEPARATOR);
pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
}
} // Set the icon for this dialog. The framework does this automatically
// when the application's main window is not a dialog
SetIcon(m_hIcon, TRUE); // Set big icon
SetIcon(m_hIcon, FALSE); // Set small icon
// TODO: Add extra initialization here
return TRUE; // return TRUE unless you set the focus to a control
}void CRawInputDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}// If you add a minimize button to your dialog, you will need the code below
// to draw the icon. For MFC applications using the document/view model,
// this is automatically done for you by the framework.void CRawInputDlg::OnPaint()
{
if (IsIconic())
{
CPaintDC dc(this); // device context for painting SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0); // Center icon in client rectangle
int cxIcon = GetSystemMetrics(SM_CXICON);
int cyIcon = GetSystemMetrics(SM_CYICON);
CRect rect;
GetClientRect(&rect);
int x = (rect.Width() - cxIcon + 1) / 2;
int y = (rect.Height() - cyIcon + 1) / 2; // Draw the icon
dc.DrawIcon(x, y, m_hIcon);
}
else
{
CDialog::OnPaint();
}
}// The system calls this to obtain the cursor to display while the user drags
// the minimized window.
HCURSOR CRawInputDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}void CRawInputDlg::OnButton1()
{
// TODO: Add your control notification handler code here
lPix=0;
PRAWINPUTDEVICELIST pRawInputDeviceList;
PCRAWINPUTDEVICE prid;
RAWINPUTDEVICE rid;
prid=&rid; //prid= (PCRAWINPUTDEVICE)malloc(sizeof(RAWINPUTDEVICE));
//prid= new RAWINPUTDEVICE; rid.usUsagePage = 0x01;
rid.usUsage = 0x02;
rid.dwFlags = RIDEV_INPUTSINK;
rid.hwndTarget = m_hWnd; if (!RegisterRawInputDevices(&rid, (UINT)1, (UINT)sizeof(rid)))
MessageBox("Error registering input"); //DisplayError();
//InputDevice id = new InputDevice( Handle );
}LRESULT CRawInputDlg::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam)
{
// TODO: Add your specialized code here and/or call the base class
if ( message == WM_INPUT )
{
//MessageBox("I find it");
INT A;
UINT cbSize=0;
A=GetRawInputData(
(HRAWINPUT)lParam,
(UINT)RID_INPUT,
(LPVOID)NULL,
(PUINT) &cbSize,
(UINT)sizeof(RAWINPUTHEADER)
);
LPBYTE lpbBuffer = new BYTE[cbSize];
A=GetRawInputData(
(HRAWINPUT)lParam,
(UINT)RID_INPUT,
(LPVOID)lpbBuffer,
(PUINT)&cbSize,
(UINT)sizeof(RAWINPUTHEADER)
);
RAWINPUT * pRawInput = (RAWINPUT *) lpbBuffer;
CString strTemp;
//strTemp.Format("%d",pRawInput->data.hid.dwCount);
//DisplayError();
if (pRawInput->header.dwType == RIM_TYPEMOUSE)
{
tmTime=CTime::GetCurrentTime();
CString strT;
strT=tmTime.Format("%H:%M:%S");
lPix=lPix+pRawInput->data.mouse.lLastY;
strTemp.Format(" usFlags:%d lLastX:%d lLastY:%d %d" ,
pRawInput->data.mouse.usFlags,
pRawInput->data.mouse.lLastX,
pRawInput->data.mouse.lLastY,
lPix);
strTemp=strT+strTemp;
//usVKey = pRawInput->data.keyboard.VKey;
DisplayData(strTemp);
return TRUE;
}
}
return CDialog::DefWindowProc(message, wParam, lParam);
}void CRawInputDlg::DisplayError()
{
DWORD nErrorNo = GetLastError ( ); // 得到错误代码
LPSTR lpBuffer;
FormatMessage ( FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
nErrorNo, // 此乃错误代码,通常在程序中可由 GetLastError()得之
LANG_NEUTRAL,
(LPTSTR) & lpBuffer,
0 ,
NULL );
CString strErrorCause = lpBuffer ? _T(lpBuffer) : _T( " Sorry, cannot find this error info. " );
MessageBox(strErrorCause);
// Free the buffer.
LocalFree (lpBuffer);
}void CRawInputDlg::DisplayData(CString strData)
{
USHORT Index;
Index=m_CListbox.AddString(strData);
m_CListbox.SetCurSel(m_CListbox.GetCount()-1);
}