OwnerDraw CButton mfc 焦点

Question

使用标准按钮，如果我有“确定”和“取消”，默认情况下“确定”，我按右箭头“取消”被选中，然后按键盘上的 enter 键调用“取消”按钮功能。

ownerdraw 按钮不会发生这种情况。如果我按向右箭头，则“取消”按钮获得焦点，但按键盘上的“确定”按钮功能将被调用。

如何才能拥有具有标准行为的 ownerdraw 按钮？

这是我的class。

BEGIN_MESSAGE_MAP(CFlatButton, CButton)
    //{{AFX_MSG_MAP(CMyClass)
        // NOTE - the ClassWizard will add and remove mapping macros here.
    //}}AFX_MSG_MAP
END_MESSAGE_MAP()

void CFlatButton::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
    // TODO: Add your code to draw the specified item
    CDC dc;
    dc.Attach(lpDrawItemStruct->hDC);       //Get device context object
    CRect rt;
    rt = lpDrawItemStruct->rcItem;      //Get button rect

    UINT state = lpDrawItemStruct->itemState;   //Get state of the button
    if ( (state & ODS_SELECTED) )
        dc.FillSolidRect(rt, RGB(255, 0, 0));
    else
    {
        if ((state & ODS_DISABLED))
        {
            dc.FillSolidRect(rt, RGB(0, 255, 0));
        }
        else
        {
            if ((state & ODS_FOCUS))       // If the button is focused
            {
                // Draw a focus rect which indicates the user 
                // that the button is focused
                dc.FillSolidRect(rt, RGB(0, 0, 255));
            }
            else
            {
                dc.FillSolidRect(rt, RGB(255, 255, 0));
            }
        }
    }
    dc.SetTextColor(RGB(255,255,255));      // Set the color of the caption to be yellow
    CString strTemp;
    GetWindowText(strTemp);     // Get the caption which have been set
    dc.DrawText(strTemp,rt,DT_CENTER|DT_VCENTER|DT_SINGLELINE);     // Draw out the caption


    dc.Detach();
}

Answer 1

主要原因是Dialog通常使用BS_DEFPUSHBUTTON和BS_PUSHBUTTON来表示，但是ownerdraw标志是互斥的。

查看这篇文章：它解释了完整的背景： http://www.codeproject.com/Articles/1318/COddButton

OwnerDraw CButton mfc 焦点

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