这正是我所写的:
class CMyStatic : public CStatic
{
DECLARE_MESSAGE_MAP()
public:
void OnPaint(void);
};
BEGIN_MESSAGE_MAP(CMyStatic, CStatic)
ON_WM_PAINT()
END_MESSAGE_MAP()
void CMyStatic::OnPaint(void)
{
CPaintDC dc(this);
CRect rect;
GetClientRect(&rect);
dc.FillSolidRect(&rect, RGB(120,255,0));
}
并细分:
class CMyDlg : public CDialog
{
// Construction
CMyStatic my_static;
...
};
BOOL CCMyDlg::OnInitDialog()
{
CDialog::OnInitDialog();
my_static.SubclassDlgItem(IDC_DRAW, this);
return true;
}
IDC_DRAW
此对话框的资源静态控制在哪里。我写了两个按钮处理程序:
void CMyDlg::OnBnClickedOk()
{
my_static.EnableWindow(FALSE);
my_static.Invalidate();
}
void CMyDlg::OnBnClickedOk2()
{
my_static.EnableWindow();
my_static.Invalidate();
}
它完美无瑕!删除Invalidate
呼叫,它会失败。