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下面的程序实现:
(1)按下键盘左键减少数值并用控件显示
(2)按下键盘右键增加数值并用控件显示
其中的刷新就用到了局部刷新,只刷新显示数字的控件
BOOL CEditTestDlg::PreTranslateMessage(MSG* pMsg)
{
if (pMsg->message == WM_KEYDOWN)
{
if (pMsg->wParam == VK_RIGHT)
{
tmp++;
m_value.Format(_T("%d"),tmp);
GetDlgItem(IDC_EDIT1)->SetWindowText(m_value);
return TRUE;
}
if (pMsg->wParam == VK_LEFT)
{
tmp--;
m_value.Format(_T("%d"),tmp);
GetDlgItem(IDC_EDIT1)->SetWindowText(m_value);
return TRUE;
}
}
return CDialog::PreTranslateMessage(pMsg);
}参考:http://www.cnblogs.com/skywatcher/p/3750059.html
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原文地址:http://blog.csdn.net/calmreason/article/details/42461169