通过

CWnd::IsWindowEnabled

  • 项目

指定 CWnd 是否为鼠标和键盘输入启用。

BOOL IsWindowEnabled( ) const;

返回值

非零，则 CWnd 启用;否则为0。

示例

//change the background color of an edit control on the dialog
HBRUSH CMyDlg::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
   HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

   if (pWnd->GetDlgCtrlID() == IDC_MYEDIT)
   {
      if (pWnd->IsWindowEnabled())
      {
         // Red brush for the background...
         pDC->SetBkColor(RGB(255, 0, 0));
         // m_pRedBrush is the CBrush object initialized with a red brush  
         // using CreateSolidBrush 
         return(HBRUSH)m_RedBrush.GetSafeHandle();
      }
      else
      {
         // Blue brush for the background...
         pDC->SetBkColor(RGB(0, 0, 255));
         // m_pBlueBrush is the CBrush object initialized with a blue  
         // brush using CreateSolidBrush 
         return (HBRUSH)m_BlueBrush.GetSafeHandle();
      }
   }

   return hbr;
}

要求

Header: afxwin.h

请参见

参考

CWnd 类

层次结构图

IsWindowEnabled