我看到了处理这个东西 (DFCS_SCROLLSIZEGRIP
) 的代码,但肯定有一个窗口样式可以应用并免费获取它。对吧?
BOOL CMyDialog::OnEraseBkgnd(CDC* pDC)
{
if (CDialog::OnEraseBkgnd(pDC))
{
// draw size grip
CRect r;
GetClientRect(&r);
int size = GetSystemMetrics(SM_CXVSCROLL);
r.left = r.right - size;
r.top = r.bottom - size;
pDC->DrawFrameControl(&r, DFC_SCROLL, DFCS_SCROLLSIZEGRIP);
return TRUE;
}
else
{
return FALSE;
}
}
-
LRESULT CMyDialog::OnNcHitTest(CPoint point)
{
// return HTBOTTOMRIGHT for sizegrip area
CRect r;
GetClientRect(&r);
int size = GetSystemMetrics(SM_CXVSCROLL);
r.left = r.right - size;
r.top = r.bottom - size;
ScreenToClient(&point);
if (r.PtInRect(point))
{
return HTBOTTOMRIGHT;
}
else
return CDialog::OnNcHitTest(point);
}
void CMyDialog::OnSize(UINT nType, INT cx, INT cy)
{
CRect rc;
int iSize=GetSystemMetrics(SM_CXVSCROLL);
GetClientRect(rc);
InvalidateRect(CRect(rc.left-iSize, rc.bottom-iSize, rc.right, rc.bottom), FALSE);
CDialog::OnSize(nType, cx, cy);
}