问一下做过CWnd的高手，为什么CWnd只能接收部分的WM_KEYDOWN消息 ?

[ChaseTheSun787]

我派生一个CWnd的类，可是当它获得焦点后只能接收nChar为VK_A 至VK_Z　的键盘消息

void CExamBaseWnd::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
switch (nChar)
{
case VK_LEFT:
MessageBox("left");
break;
case VK_RIGHT:
break;
default:
if ( (nChar >= _T('a') && nChar <=_T('z'))

CWnd::OnKeyDown(nChar, nRepCnt, nFlags);
}

int CExamBaseWnd::OnMouseActivate(CWnd* pDesktopWnd, UINT nHitTest, UINT message)
{
SetFocus();
return CWnd::OnMouseActivate(pDesktopWnd, nHitTest, message);
}

[DentistryDoctor]

还有些是WM_SYSKEYDOWN.

[ChaseTheSun787]

为什么会这样，有什么解决办法？

[老夏Max]

PreTranslateMessage

[老夏Max]

我在View中没有错误，参见：
void CNetworkView::OnKeyDown(UINT nChar, UINT nRepCnt, UINT nFlags)
{
// TODO: Add your message handler code here and/or call default
//add by qqxia
switch (nChar)
{
case VK_HOME:
OnVScroll(SB_TOP, 0, NULL);
OnHScroll(SB_LEFT, 0, NULL);
break;
case VK_END:
OnVScroll(SB_BOTTOM, 0, NULL);
OnHScroll(SB_RIGHT, 0, NULL);
break;
case VK_UP:
OnVScroll(SB_LINEUP, 0, NULL);
break;
case VK_DOWN:
OnVScroll(SB_LINEDOWN, 0, NULL);
break;
case VK_PRIOR:
OnVScroll(SB_PAGEUP, 0, NULL);
break;
case VK_NEXT:
OnVScroll(SB_PAGEDOWN, 0, NULL);
break;
case VK_LEFT:
OnHScroll(SB_LINELEFT, 0, NULL);
break;
case VK_RIGHT:
OnHScroll(SB_LINERIGHT, 0, NULL);
break;
case VK_DELETE:
AfxMessageBox("Del Selection Objects");
break;
default:
break;
}
}

[aeromatex_lq]

顶楼上的

[ChaseTheSun787]

只能用PretranslateMessage了