www.pudn.com > VideoMonitor.rar > Overlay.cpp

// Overlay.cpp : implementation file 
// 
 
#include "stdafx.h" 
#include  
#include  
 
#include "MAV8.h" 
#include "Overlay.h" 
 
#ifdef _DEBUG 
#define new DEBUG_NEW 
#undef THIS_FILE 
static char THIS_FILE[] = __FILE__; 
#endif 
 
///////////////////////////////////////////////////////////////////////////// 
// COverlay 
 
IMPLEMENT_DYNCREATE(COverlay, CFrameWnd) 
 
COverlay::COverlay() 
{ 
//	g_hVFDrv = hVFDrv; 
	CFrameWnd::Create(NULL, "Overlay Window"); 
} 
 
COverlay::COverlay(HDRVR hVFDrv, RECT rectOverlay, WORD wSrcWidth, WORD wSrcHeight) 
{ 
	g_hVFDrv = hVFDrv; 
	wOverlaySrcWidth=wSrcWidth; 
    wOverlaySrcHeight=wSrcHeight; 
	 
	CFrameWnd::Create(NULL, "Video Window",WS_OVERLAPPEDWINDOW, rectOverlay); 
} 
 
COverlay::~COverlay() 
{ 
} 
 
 
BEGIN_MESSAGE_MAP(COverlay, CFrameWnd) 
	//{{AFX_MSG_MAP(COverlay) 
	ON_WM_CREATE() 
	ON_WM_MOVE() 
	ON_WM_SIZE() 
	ON_WM_CLOSE() 
	ON_WM_PAINT() 
	//}}AFX_MSG_MAP 
END_MESSAGE_MAP() 
 
BOOL COverlay::SetSrc(WORD wSrcWidth, WORD wSrcHeight) 
{ 
	wOverlaySrcWidth=wSrcWidth; 
	wOverlaySrcHeight=wSrcHeight; 
	HVFSetOverlaySrc(g_hVFDrv, wOverlaySrcWidth, wOverlaySrcHeight); 
 
	CRect rectOverlay; 
	GetWindowRect(rectOverlay); 
	SetWindowPos(&wndTop, rectOverlay.left, rectOverlay.top,  
		wSrcWidth + GetSystemMetrics(SM_CXFRAME), 
		wSrcHeight + GetSystemMetrics(SM_CYFRAME)+12+ 
		//GetSystemMetrics(SM_CYCAPTION)+GetSystemMetrics(SM_CYMENU),  
		GetSystemMetrics(SM_CYCAPTION),  
		SWP_SHOWWINDOW); 
	return TRUE; 
} 
 
 
///////////////////////////////////////////////////////////////////////////// 
// COverlay message handlers 
 
BOOL COverlay::PreCreateWindow(CREATESTRUCT& cs)  
{ 
	/*// TODO: Add your specialized code here and/or call the base class 
	HBRUSH hBrushMagenta=::CreateSolidBrush(RGB(255, 0, 255)); 
	HCURSOR hCursor=::LoadCursor(NULL, IDC_ARROW); 
 
	//*** jsm, 1/9/98 
	// added LoadIcon 
	HICON hIcon = ::LoadIcon(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDR_TSTLOGO)); 
	cs.lpszClass=AfxRegisterWndClass(CS_HREDRAW | CS_VREDRAW, 
				hCursor, hBrushMagenta, hIcon); 
 
	DeleteObject(hBrushMagenta); 
	*/ 
	nScreenX=GetSystemMetrics(SM_CXSCREEN); 
	nScreenY=GetSystemMetrics(SM_CYSCREEN); 
	return CFrameWnd::PreCreateWindow(cs); 
} 
 
int COverlay::OnCreate(LPCREATESTRUCT lpCreateStruct)  
{ 
	if (CFrameWnd::OnCreate(lpCreateStruct) == -1) 
		return -1; 
	 
	// TODO: Add your specialized creation code here 
	HVFSetOverlayWnd(g_hVFDrv, m_hWnd); 
	HVFSetOverlaySrc(g_hVFDrv, wOverlaySrcWidth, wOverlaySrcHeight); 
	 
	return 0; 
} 
 
void COverlay::OnMove(int x, int y)  
{ 
	gnPosX=x; 
	gnPosY=y; 
	CFrameWnd::OnMove(x, y); 
	 
	// TODO: Add your message handler code here 
    HVFSetOverlayPos(g_hVFDrv, x, y); 
	 
} 
 
void COverlay::OnSize(UINT nType, int cx, int cy)  
{ 
#define DIVIDEVALUE		40 
	// TODO: Add your message handler code here 
	if(cx+(cx/DIVIDEVALUE) > nScreenX ||  
	   cy+(cy/DIVIDEVALUE) > nScreenY){ 
 		// make the window size smaller to avoid the 352 and 360 problem 
		CRect rectOverlay; 
		rectOverlay.left=0; 
		rectOverlay.top=0; 
		rectOverlay.right= nScreenX - (nScreenX/DIVIDEVALUE) ; 
		rectOverlay.bottom= nScreenY- (nScreenY/DIVIDEVALUE) ; 
		SetWindowPos(&wndTop, rectOverlay.left, rectOverlay.top,  
			rectOverlay.right, rectOverlay.bottom+12, SWP_SHOWWINDOW); 
	} else { 
		// make the destination lager than window size, because 360 and 352 problem 
		CFrameWnd::OnSize(nType, cx, cy); 
	//	SetOverlayDst(m_hWnd, cx+(cx/DIVIDEVALUE), cy+(cy/DIVIDEVALUE)); 
		HVFSetOverlayDst(g_hVFDrv, cx+(cx/DIVIDEVALUE), cy); 
	} 
	HVFSetOverlayPos(g_hVFDrv, gnPosX, gnPosY); 
	 
} 
 
void COverlay::OnClose()  
{ 
	HVFUnloadOverlay (g_hVFDrv); 
	 
	CFrameWnd::OnClose(); 
} 
 
void COverlay::OnPaint()  
{ 
	CPaintDC dc(this); // device context for painting 
	 
	if (g_hVFDrv) 
		HVFPaintOverlay (g_hVFDrv, &dc.m_ps); 
}