duilib中添加视频播放窗口
最近想在Duilib的主程序中添加视频播放窗口，需要支持右键操作。这是需要创建一个带窗口句柄的窗口。具体如下:
1)先创建一个CWndUI的类，可以绑定窗口
class CWndUI : public CControlUI
{
public:
CWndUI() : m_hWnd(NULL){}
virtual void SetVisible(bool bVisible = true)
{
__super::SetVisible(bVisible);
::ShowWindow(m_hWnd, bVisible);
}
virtual void SetInternVisible( bool bVisible = true )
{
__super::SetInternVisible(bVisible);
::ShowWindow(m_hWnd, bVisible);
}
virtual void SetPos(RECT rc)
{
__super::SetPos(rc);
::SetWindowPos(m_hWnd, NULL, rc.left, rc.top, rc.right – rc.left,
rc.bottom – rc.top, SWP_NOZORDER | SWP_NOACTIVATE);
}
BOOL Attach(HWND hWndNew)
{
if ( !::IsWindow(hWndNew) )
{
return FALSE;
}
m_hWnd = hWndNew;
return TRUE;
}
HWND Detach()
{
HWND hWnd = m_hWnd;
m_hWnd = NULL;
return hWnd;
}
HWND GetHWND()
{
return m_hWnd;
}
protected:
HWND m_hWnd;
};
2）创建自定义的播放窗口控件，在createcontrol中添加该控件的创建
CVideoWnd *pvideownd = new CVideoWnd;
BOOL bret = pvideownd ->Create( L”test” , L”test”, WS_CHILD|WS_VISIBLE|WS_BORDER|WS_CLIPCHILDREN, CRect(0,0,0,0), CWnd::FromHandle( m_pParentManage->GetPaintWindow() ), 1001);
pvideownd ->ShowWindow( SW_SHOW );
CWndUI *pUI = new CWndUI;
pUI->Attach( pvideownd ->GetSafeHwnd() );
return pUI;
3)CVideoWnd 类的实现
class CVideoWnd : public CWnd
{
public:
CVideoWnd ();
virtual ~CVideoWnd ();
DECLARE_DYNCREATE(CVideoWnd )
virtual BOOL Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext = NULL);
public:
private:
HBRUSH m_brush;
HBRUSH m_hBkBrush;
CDC m_memDC;//屏幕DC兼容的内存
DC CBitmap m_Bmp;//位图
WINDOWPLACEMENT m_OldWndPlacement;
public:
afx_msg void OnPaint();
afx_msg int OnCreate(LPCREATESTRUCT lpCreateStruct);
afx_msg void OnDestroy();
afx_msg void OnSize(UINT nType, int cx, int cy);
HBRUSH OnCtlColor(CDC *pDC, CWnd *pWnd, UINT nCtlColor);
afx_msg BOOL OnEraseBkgnd(CDC* pDC);
afx_msg void OnLButtonDblClk(UINT nFlags, ::CPoint point);
//}}AFX_MSG DECLARE_MESSAGE_MAP()
IMPLEMENT_DYNCREATE(CVideoWnd , CWnd)
IMPLEMENT_DYNCREATE(CVideoWnd , CWnd)
BEGIN_MESSAGE_MAP(CVideoWnd , CWnd)
ON_WM_PAINT()
ON_WM_DESTROY()
ON_WM_CTLCOLOR()
ON_WM_CREATE()
ON_WM_SIZE()
ON_WM_LBUTTONDBLCLK()
END_MESSAGE_MAP()
CVideoWnd ::CVideoWnd ()
{
m_brush=CreateSolidBrush(RGB(222,222,222));
}
CVideoWnd ::~CVideoWnd ()
{
}
void CVideoWnd ::OnPaint()
{
CPaintDC dc(this); // device context for painting
CRect rt;
GetClientRect(&rt);
m_memDC.CreateCompatibleDC(&dc);
CBitmap bmp;
bmp.CreateCompatibleBitmap(&dc,rt.Width(),rt.Height());
m_memDC.SelectObject(&bmp);
//m_Bmp.CreateCompatibleBitmap( &dc,rt.Width(),rt.Height() );
//m_memDC.SelectObject(&m_Bmp);
dc.BitBlt(0,0,rt.Width(),rt.Height(),&m_memDC,0,0,SRCCOPY);
m_memDC.DeleteDC();
}
int CVideoWnd ::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if (CWnd::OnCreate(lpCreateStruct) == -1)
return -1;
return 0;
}
BOOL CVideoWnd::Create(LPCTSTR lpszClassName, LPCTSTR lpszWindowName, DWORD dwStyle, const RECT& rect, CWnd* pParentWnd, UINT nID, CCreateContext* pContext)
{
return CreateEx(0, AfxRegisterWndClass(CS_DBLCLKS|CS_VREDRAW|CS_HREDRAW/*0*/,NULL,NULL,NULL), lpszWindowName, dwStyle, rect, pParentWnd, nID);
}
void CVideoWnd::OnDestroy()
{
CWnd::OnDestroy();
}
void CVideoWnd::OnSize(UINT nType, int cx, int cy)
{
CWnd::OnSize(nType, cx, cy);
// TODO: Add your message handler code here
//CRect rt;
//GetClientRect(&rt);
//if (m_memDC.m_hDC)
//{ // m_Bmp.DeleteObject();
// m_memDC.DeleteDC();
// CDC* sDC = GetDC(); // // 为屏幕DC创建兼容的内存DC
// m_memDC.CreateCompatibleDC(sDC);
// // 创建位图,不能是m_memDC，否则无颜色
// m_Bmp.CreateCompatibleBitmap(sDC, cx, cy);
// // 相当于选择画布
//::SelectObject(m_memDC.GetSafeHdc(), m_Bmp);
// ReleaseDC(sDC); //
}
}
HBRUSH CVideoWnd::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{ HBRUSH hbr = CWnd::OnCtlColor(pDC, pWnd, nCtlColor);
if((pWnd->GetDlgCtrlID() >= WM_VIDEOPLAYWNDID ) && (pWnd->GetDlgCtrlID() <= WM_VIDEOPLAYWNDID+3))
{
pDC->SetBkMode(TRANSPARENT);
hbr = m_hBkBrush;
pDC->SetBkColor(RGB(0,0,0));
return hbr;
}
return hbr;
}
BOOL CVideoWnd::OnEraseBkgnd(CDC* pDC)
{ // TODO: Add your message handler code here and/or call default
return TRUE;
return CWnd::OnEraseBkgnd(pDC);
}
void CVideoWnd::OnLButtonDblClk(UINT nFlags, CPoint point)
{ // TODO: Add your message handler code here and/or call default int m=0;
int dlgCtlId = GetDlgCtrlID();
CWnd::OnLButtonDblClk(nFlags, point);
}
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