实现类似与qq的自动停靠窗口隐藏

// TestDlg.cpp : implementation file // #include "stdafx.h" #include "Test.h" #include "AutoHideDlg.h" #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE static char THIS_FILE[] = __FILE__; #endif static int ScreenX = GetSystemMetrics(SM_CXSCREEN); static int ScreenY = GetSystemMetrics(SM_CYSCREEN); enum { DOCK_NONE, //不停靠 DOCK_TOP, //停靠上边 DOCK_LEFT, //停靠左边 DOCK_RIGHT //停靠右边 }; ///////////////////////////////////////////////////////////////////////////// // CAboutDlg dialog used for App About class 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() ///////////////////////////////////////////////////////////////////////////// // CAutoHideDlg dialog CAutoHideDlg::CAutoHideDlg(CWnd* pParent /*=NULL*/) : CDialog(CAutoHideDlg::IDD, pParent) ,m_DockMode(DOCK_NONE) ,m_bHide(false) { //{{AFX_DATA_INIT(CAutoHideDlg) // 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 CAutoHideDlg::DoDataExchange(CDataExchange* pDX) { CDialog::DoDataExchange(pDX); //{{AFX_DATA_MAP(CAutoHideDlg) // NOTE: the ClassWizard will add DDX and DDV calls here //}}AFX_DATA_MAP } BEGIN_MESSAGE_MAP(CAutoHideDlg, CDialog) //{{AFX_MSG_MAP(CAutoHideDlg) ON_WM_SYSCOMMAND() ON_WM_PAINT() ON_WM_QUERYDRAGICON() ON_WM_MOVING() ON_WM_TIMER() ON_WM_NCHITTEST() END_MESSAGE_MAP() ///////////////////////////////////////////////////////////////////////////// // CAutoHideDlg message handlers BOOL CAutoHideDlg::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 //SetTimer(1,50,NULL); ::SetWindowPos(GetSafeHwnd(), HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE|SWP_NOMOVE); return TRUE; // return TRUE unless you set the focus to a control } void CAutoHideDlg::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 CAutoHideDlg::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 CAutoHideDlg::OnQueryDragIcon() { return (HCURSOR) m_hIcon; } void CAutoHideDlg::AnimateShowHide(BOOL bHide) { if(m_DockMode == DOCK_NONE) return; m_bHide = bHide; const int borderWidth = 3; RECT rc; GetWindowRect(&rc); int width = rc.right - rc.left; int height = rc.bottom - rc.top; //下边判断窗体该如何移动,由停靠方式决定 int times = 10; //平移对话框的次数,如果你觉得不够平滑,可以增大该值. int xStep, yStep; int xEnd, yEnd; switch (m_DockMode) { case DOCK_TOP: { //向上移藏 xStep = 0; xEnd = rc.left; if (bHide) { yStep = -rc.bottom / times; yEnd = -height + borderWidth; } else { yStep = -rc.top / times; yEnd = 0; } break; } case DOCK_LEFT: { //向左移藏 yStep = 0; yEnd = rc.top; if (bHide) { xStep = -rc.right / times; xEnd = -width + borderWidth; } else { xStep = -rc.left / times; xEnd = 0; } break; } case DOCK_RIGHT: { //向右移藏 yStep = 0; yEnd = rc.top; if (bHide) { xStep = (ScreenX - rc.left) / times; xEnd = ScreenX - borderWidth; } else { xStep = (ScreenX - rc.right) / times; xEnd = ScreenX - width; } break; } default: _ASSERTE(FALSE); } //动画滚动窗体. for (int i = 0; i < times-1; ++i) { rc.left += xStep; rc.top += yStep; SetWindowPos(NULL, rc.left, rc.top, 0, 0, SWP_NOSIZE | SWP_NOSENDCHANGING); RedrawWindow(NULL, NULL, RDW_INVALIDATE | RDW_UPDATENOW); Sleep(5); } SetWindowPos(NULL, xEnd, yEnd, 0, 0, SWP_NOSIZE); } void CAutoHideDlg::OnMoving(UINT nSide, LPRECT pRect) { if (pRect->top <= 0) //在上边有效距离内，自动靠拢。 { m_DockMode = DOCK_TOP; pRect->bottom -= pRect->top; pRect->top = 0; } else if (pRect->left <= 0) //在左边有效距离内 { m_DockMode = DOCK_LEFT; pRect->right -= pRect->left; pRect->left = 0; } else if (pRect->right + 0 >= ScreenX) //在右边有效距离内，ScreenX为屏幕宽度，可由GetSystemMetrics(SM_CYSCREEN)得到。 { m_DockMode = DOCK_RIGHT; pRect->left += (ScreenX - pRect->right); pRect->right = ScreenX; } else { m_DockMode = DOCK_NONE; } if(m_DockMode != DOCK_NONE) { SetTimer(1,50,NULL); } else { KillTimer(1); } } void CAutoHideDlg::OnTimer(UINT nIDEvent) { if(m_DockMode !=DOCK_NONE && nIDEvent == 1) { POINT pt; RECT rc; GetCursorPos(&pt); GetWindowRect(&rc); if (!PtInRect(&rc, pt)) { AnimateShowHide(TRUE); KillTimer(1); } } } LRESULT CAutoHideDlg::OnNcHitTest(CPoint point) { if (m_bHide) { AnimateShowHide(FALSE); if(m_DockMode != DOCK_NONE) SetTimer(1,50,NULL); } //必须得调基类的对应函数。 return CDialog::OnNcHitTest(point); }