VC 对话框的收缩

void CStrinkDlg::OnButton1() 

{

CString str;

GetDlgItem(IDC_BUTTON1) ->GetWindowText(str);

if (str == "收缩<<")

{

GetDlgItem(IDC_BUTTON1) ->SetWindowText("扩展>>");

}

else

{

GetDlgItem(IDC_BUTTON1) ->SetWindowText("收缩<<");

}

static CRect rectLarge;

static CRect rectSmall;

if (rectLarge.IsRectNull())

{

CRect rectTemp;

GetWindowRect(&rectLarge);

GetDlgItem(IDC_STRINK) ->GetWindowRect(&rectTemp);

rectSmall.left = rectLarge.left;//左侧

rectSmall.top = rectLarge.top;//顶侧

rectSmall.right = rectLarge.right;//右侧

rectSmall.bottom = rectTemp.bottom;//底侧

}

if (str == "收缩<<")

{

SetWindowPos(NULL,0,0,rectSmall.Width(),rectSmall.Height(),

SWP_NOMOVE | SWP_NOZORDER);

}

else

{

SetWindowPos(NULL,0,0,rectLarge.Width(),rectLarge.Height(),

SWP_NOMOVE | SWP_NOZORDER);

}

}