在OnInitDialog中初始化OldPoint
CRect rect;
GetClientRect(&rect);
oldPiont.x = rect.right - rect.left;
oldPiont.y = rect.bottom - rect.top;
在Onsize中更改比例
//等比例缩放所有的元素
float fsp[2];
POINT newPoint;//当前对话框的高度和宽度
CRect newRect;//当前对话框大小
GetClientRect(&newRect);
newPoint.x = newRect.right - newRect.left;
newPoint.y = newRect.bottom - newRect.top;
fsp[0] = (float)newPoint.x / oldPiont.x;
fsp[1] = (float)newPoint.y / oldPiont.y;
int woc;
CRect rect;
CPoint oldTLPoint, newTLPoint;//左上角
CPoint oldBRPoint, newBRPoint;//右下角
//列出所有的子空间
HWND hwndChild = ::GetWindow(m_hWnd, GW_CHILD);
while (hwndChild) {
woc = ::GetDlgCtrlID(hwndChild);//取得ID
GetDlgItem(woc)->GetWindowRect(rect);
ScreenToClient(rect);
oldTLPoint = rect.TopLeft();
newTLPoint.x = long(oldTLPoint.x * fsp[0]);
newTLPoint.y = long(oldTLPoint.y * fsp[1]);
oldBRPoint = rect.BottomRight();
newBRPoint.x = long(oldBRPoint.x * fsp[0]);
newBRPoint.y = long(oldBRPoint.y * fsp[1]);
rect.SetRect(newTLPoint, newBRPoint);
GetDlgItem(woc)->MoveWindow(rect, TRUE);
hwndChild = ::GetWindow(hwndChild, GW_HWNDNEXT);
}
oldPiont = newPoint;
return;
