C / C++ / MFC

int Recieve(char* buffer, size_t buflen){
    if (m_iLastRecieved > 0){ //Were expecting a second packed
        m_wsaBuf.len = static_cast<ULONG>(buflen) - m_iTotalRecieved;
        m_wsaBuf.buf = buffer + m_iTotalRecieved;
        m_wsaBuf.buf[0] = 0;
    }
    else{
        buffer[0] = 0;
        m_wsaBuf.len = static_cast<ULONG>(buflen);
        m_wsaBuf.buf = buffer;
    }

    static int sockaddr_len = sizeof(sockaddr_in);
    DWORD temp(0);
    setStatus(RequestRecieve);
    //returning 0 is ok
    return (PostQueuedCompletionStatus(m_hIOCP, 1, reinterpret_cast<ULONG_PTR>(this), getOverlapped()) == FALSE);
}

Polity4h wrote:

to a few packets of 1500 kb

Polity4h wrote:

Is there any way to close a overlapped operation because i need to reuse the overlapped structures, and that means that if there is a timeout check function somewhere in my application just running once in a while over all the overlapped operations looking if they arent timed out...

Polity4h wrote:

CancelIo doesnt work, the thing is that it needs to be ran from the same thread where Overlapped operations were posted.

maladuk wrote:

void ShowResultDlg::OnPaint(){
CPaintDC dc(this); // device context for painting
}

void CColorCheck::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
	CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);
	CRect rc;
	CRect rect(13,1,11,11);
	CRect focusRect, btnRect;
	focusRect.CopyRect(&lpDrawItemStruct->rcItem); 
	disabled = RGB(100,100,100);         // dark gray disabled text
	CSize captionSize;

 
	// Retrieve the button's caption
	//
    const int bufSize = 512;
    TCHAR buffer[bufSize];
    GetWindowText(buffer, bufSize);

	//
	// Set the Text Position more to the left
	//
	captionSize = pDC->GetTextExtent(buffer, strlen(buffer));
	btnRect.SetRect(16,1,16 + captionSize.cx + 9,15);

	//
	// Set the focus rectangle to just past the border decoration
	//
	focusRect.SetRect(18,0,16 + captionSize.cx +6, 15);

	//Get control's ID
	int id = GetDlgCtrlID();

	UINT state = lpDrawItemStruct->itemState;
	UINT action = lpDrawItemStruct->itemAction;

	// Don't redraw whole control if only focus has changed  
	if (action == ODA_FOCUS)
		drawFocus = TRUE;
	//Start drawing the check box
	CPen normRect(PS_SOLID, 1,NULL_PEN);
	CPen* m_normRect = pDC->SelectObject(&normRect);

	pDC->SelectStockObject(NULL_BRUSH);

	//draw the caption
	pDC->DrawText(buffer, strlen(buffer), btnRect, DT_CENTER | DT_VCENTER | DT_SINGLELINE);	
	DrawCheckCaption(pDC, btnRect, buffer, newTextColor);

		
	//draw the check rectangle
	pDC->FillSolidRect(2,2,11,11,newColor);
	normRect.DeleteObject();

	//draw the borders
	CPen normRect1(PS_SOLID, 1,RGB(80,80,80));
	CPen* m_normRect1 = pDC->SelectObject(&normRect1);

	CPoint startPt = pDC->MoveTo(1,13);

	pDC->LineTo(1,1);
	pDC->LineTo(13,1);
	normRect1.DeleteObject();							//release

	CPen normRect2(PS_SOLID, 1,RGB(100,100,100));
	CPen* m_normRect2 = pDC->SelectObject(&normRect2);

	CPoint startPt1 = pDC->MoveTo(0,14);

	pDC->LineTo(0,0);
	pDC->LineTo(14,0);
	normRect2.DeleteObject();							//release

	CPen normRect3(PS_SOLID, 1,RGB(255,255,255));
	CPen* m_normRect3 = pDC->SelectObject(&normRect3);

	CPoint startPt2 = pDC->MoveTo(14,0);

	pDC->LineTo(14,14);
	pDC->LineTo(0,14);
	normRect3.DeleteObject();							//release

	CPen normRect4(PS_SOLID, 1,RGB(180,180,180));
	CPen* m_normRect4 = pDC->SelectObject(&normRect4);

	CPoint startPt3 = pDC->MoveTo(13,1);

	pDC->LineTo(13,13);
	pDC->LineTo(13,1);
	normRect4.DeleteObject();							//release
	if (checkFlag == 1)
	{
		pDC->FillSolidRect(2,2,11,11,newColor);

		// draw the arrow
		CPen normRect5(PS_SOLID, 1, newArrowColor);//BLACK_PEN);
		CPen* m_normRect5 = pDC->SelectObject(&normRect5);

		CPoint startPt2 = pDC->MoveTo(4,7);

		pDC->LineTo(7,11);
		pDC->LineTo(10,3);

		CPoint startPt3 = pDC->MoveTo(4,8);

		pDC->LineTo(7,9);
		pDC->LineTo(9,4);
		normRect5.DeleteObject();	//release
	}



	//draw "checked" - arrow depending on state

	if (action & ODA_SELECT && checkFlag == 1)

		pDC->FillSolidRect(2,2,11,11,newColor);

	else if (action & ODA_SELECT && checkFlag == 0)
	{

		pDC->FillSolidRect(2,2,11,11,newColor);

		// draw the arrow
		CPen normRect5(PS_SOLID, 1, newArrowColor);//BLACK_PEN);
		CPen* m_normRect5 = pDC->SelectObject(&normRect5);

		CPoint startPt2 = pDC->MoveTo(4,7);

		pDC->LineTo(7,11);
		pDC->LineTo(10,3);

		CPoint startPt3 = pDC->MoveTo(4,8);

		pDC->LineTo(7,9);
		pDC->LineTo(9,4);
		normRect5.DeleteObject();	//release
	}

	if( ( state & ODS_FOCUS ) ^ ( oldState & ODS_FOCUS ) ||( !drawFocus && ( state & ODS_FOCUS ) ) )
			
		DrawFocusRect(lpDrawItemStruct->hDC, (LPRECT)&focusRect);

	else if (state & ODS_DISABLED)
	{
		pDC->FillSolidRect(2,2,11,12,RGB(192,192,192));  //grayed
		DrawCheckCaption(pDC, btnRect, buffer, GetDisabledColor());
	}

	oldState = state;
	oldAction = action;
}