学习：Scroll Bar/Spin Control/Progress Control/Timer

滚动条

实现的结构体为：SCROLLINFO

/*
D:\Visual_Studio_repos\MFC\5\
*/
BOOL CMy4Dlg::OnInitDialog()
{
	CDialogEx::OnInitDialog();
 
	SCROLLINFO si;
	si.cbSize = sizeof(SCROLLINFO);
	si.fMask = SIF_ALL;
	si.nMax = 100;
	si.nMin = 0;
	si.nPage = 10;
	m_scrollbar.SetScrollInfo(&si);
}

void CMy4Dlg::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)// nPos为事件发生的时候，当前Scroll的滚动大小
{
 
	SCROLLINFO sc = { 0 };
	sc.cbSize = sizeof(SCROLLINFO);
	sc.fMask = SIF_ALL;
	m_scrollbar.GetScrollInfo(&sc, true); //初始化窗口中的si结构体赋值给当前sc的结构体
 
	int NewPos = sc.nPos;
 
 
	switch (nSBCode)
	{
	case SB_THUMBTRACK: //拖动
		NewPos = nPos;
		break;
	case SB_LINELEFT: //左箭头
		NewPos = NewPos - 10;
		break;
	case SB_LINERIGHT:  //右箭头
		NewPos = NewPos + 10;
		break;
	case SB_PAGELEFT: //左拖动行
		NewPos = NewPos - sc.nPage;
		break;
	case SB_PAGERIGHT: //右拖动行
		NewPos = NewPos + sc.nPage;
		break;
	default:
		break;
	}
	bool ret;
 
	ret = m_scrollbar.SetScrollPos(NewPos); //判断是否设置成功
 
	if (NewPos > sc.nMax) {
		NewPos = sc.nMax;
	}
 
	if (NewPos < sc.nMin) {
		NewPos = sc.nMin;
	}
	
 
	wchar_t szbuffer[1024];
	SetDlgItemText(IDC_STATIC_1, _itow(NewPos, szbuffer, 10));
	CDialogEx::OnHScroll(nSBCode, nPos, pScrollBar);
}

---

Spin Control：

BOOL CMy5Dlg::OnInitDialog(){
......
	CSpinButtonCtrl *spin2 = (CSpinButtonCtrl*)GetDlgItem(IDC_SPIN_2);
	spin2->SetBase(16);
 
	CSpinButtonCtrl *spin1 = (CSpinButtonCtrl*)GetDlgItem(IDC_SPIN_1);
	spin1->SetRange(-20, 20);
......
}

---

进度条和定时器：

void CMy5Dlg::OnBnClickedButton1()
{
	int pcP;
	CProgressCtrl *pc = (CProgressCtrl*)GetDlgItem(IDC_PROGRESS_1);
	SetTimer(1,200,NULL); //用来发送WM_TIMER消息，第三个参数为空则就交给内核进行消息处理
	pcP = 0;
	pc->SetPos(0);
	GetDlgItem(IDC_BUTTON1)->EnableWindow(false);
	
 
}
 
 
void CMy5Dlg::OnTimer(UINT_PTR nIDEvent)
{
	int pcP;
	CProgressCtrl *pc = (CProgressCtrl*)GetDlgItem(IDC_PROGRESS_1);
 
	//接收到WM_TIMER消息之后的处理
	pc->SetRange(0, 100);
 
	pcP = pc->GetPos() + 10;
	if (pcP == 100) {
		KillTimer(1);
                GetDlgItem(IDC_BUTTON1)->EnableWindow(true);
	}
	pc->SetPos(pcP);
	CDialogEx::OnTimer(nIDEvent);
}