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控件大小随窗体大小变化
MFC中当我们添加了很多控件后,布局就是一个很难控制的方面,当程序运行在不能的PC上就会有不一样的布局,如何解决呢方法很多,我第一次是自己算出控件的位置,然后按照比例缩放,但是方法很麻烦,还不易控制,后来一个同事用如下代码很容易实现,非常不错分享给大家:
1. *.h 添加消息
[cpp] view plain copy print?
public:
afx_msg void OnSize(UINT nType, int cx, int cy);
void ReSize(void);
POINT old;
2.
[cpp] view plain copy print?
BOOL CWVKeyAutoWRDlg::OnInitDialog()
{
CDialogEx::OnInitDialog();
//此处代码
CRect rect;
GetClientRect(&rect); //取客户区大小
old.x=rect.right-rect.left;
old.y=rect.bottom-rect.top;
int cx = GetSystemMetrics(SM_CXFULLSCREEN);
int cy = GetSystemMetrics(SM_CYFULLSCREEN);
CRect rt;
SystemParametersInfo(SPI_GETWORKAREA,0,&rt,0);
cy = rt.bottom;
MoveWindow(0, 0, cx, cy);
return TRUE; // 除非将焦点设置到控件,否则返回 TRUE
}
3.
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void CWVKeyAutoWRDlg::ReSize(void)
{
float fsp[2];
POINT Newp; //获取现在对话框的大小
CRect recta;
GetClientRect(&recta); //取客户区大小
Newp.x=recta.right-recta.left;
Newp.y=recta.bottom-recta.top;
fsp[0]=(float)Newp.x/old.x;
fsp[1]=(float)Newp.y/old.y;
CRect Rect;
int woc;
CPoint OldTLPoint,TLPoint; //左上角
CPoint OldBRPoint,BRPoint; //右下角
HWND hwndChild=::GetWindow(m_hWnd,GW_CHILD); //列出所有控件
while(hwndChild)
{
woc=::GetDlgCtrlID(hwndChild);//取得ID
GetDlgItem(woc)->GetWindowRect(Rect);
ScreenToClient(Rect);
OldTLPoint = Rect.TopLeft();
TLPoint.x = long(OldTLPoint.x*fsp[0]);
TLPoint.y = long(OldTLPoint.y*fsp[1]);
OldBRPoint = Rect.BottomRight();
BRPoint.x = long(OldBRPoint.x *fsp[0]);
BRPoint.y = long(OldBRPoint.y *fsp[1]);
Rect.SetRect(TLPoint,BRPoint);
GetDlgItem(woc)->MoveWindow(Rect,TRUE);
hwndChild=::GetWindow(hwndChild, GW_HWNDNEXT);
}
old=Newp;
}
控件大小随窗体大小变化