1. 在oninitdlg中 計算出目前的交談框的大小與最大化後大小，注意要用float值，不然誤差很大. CRect rect;
::GetWindowRect(m_hWnd,rect);
ScreenToClient(rect);
m_nDlgWidth = rect.right - rect.left;
m_nDlgHeight = rect.bottom - rect.top; //計算解析度
m_nWidth = GetSystemMetrics(SM_CXSCREEN);
m_nHeight = GetSystemMetrics(SM_CYSCREEN); //計算放大倍數
m_Multiple_width = float(m_nWidth)/float(m_nDlgWidth);
m_Mutiple_heith = float(m_nHeight)/float(m_nDlgHeight);
change_flag=TRUE;//這個是成員變數bool形，用來判斷onsize執行時oninitdlg是否已經執行了 2. 給你對話方塊添加 onsize訊息: void EnviromentConfigDlg::OnSize(UINT nType, int cx, int cy)
{
CDialog::OnSize(nType, cx, cy);
if (change_flag)//如果確定oninitdlg已經調用完畢.
{
ReSize(IDC_STATIC1);
ReSize(IDC_TREE_ALARM);
ReSize(IDC_STATIC2);
ReSize(IDC_TREE_CAMERA);
ReSize(IDC_STATIC3);
ReSize(IDC_LIST_TYPE);
ReSize(IDOK);
ReSize(IDC_STATIC4);
ReSize(IDC_LIST_INFO); //恢複放大倍數，並儲存 (確保還原時候能夠還原到原來的大小) m_Multiple_width = float(1)/ m_Multiple_width ;
m_Mutiple_heith = float(1)/m_Mutiple_heith ;
}
} 3.重新整理控制項：根據比例計算控制項縮放的大小，然後movewindow 到新矩形上 void EnviromentConfigDlg::ReSize(int nID)
{
CRect Rect;
GetDlgItem(nID)->GetWindowRect(Rect);
ScreenToClient(Rect);
//計算控制項左上方點
CPoint OldTLPoint,TLPoint;
OldTLPoint = Rect.TopLeft();
TLPoint.x = long(OldTLPoint.x *m_Multiple_width);
TLPoint.y = long(OldTLPoint.y * m_Mutiple_heith ); //計算控制項右下角點
CPoint OldBRPoint,BRPoint;
OldBRPoint = Rect.BottomRight();
BRPoint.x = long(OldBRPoint.x *m_Multiple_width);
BRPoint.y = long(OldBRPoint.y * m_Mutiple_heith );
//行動控制項到新矩形 Rect.SetRect(TLPoint,BRPoint);
GetDlgItem(nID)->MoveWindow(Rect,TRUE);
} 這樣，你就可以隨心所遇的放大與縮小你的對話方塊了，控制項也跟著比例縮小放大 |
