[教学]：如何在MFC的“模式”对话框执行ACAD的acedGetXXX函数

XDSoft

How can I use acedGetxxx() functions from a MFC modal dialog box ?  
ID    1597  
Applies to:    AutoCAD 2000
AutoCAD 2000I
AutoCAD 2002


This document is part of    MFC     


Question
How can I use acedGetXXX() functions from a MFC modal dialog box ?
Answer
There is no user intervention allowed at the AutoCAD main frame window or other
child windows when a child modal dialog is active. Since acedGetXXX functions
need to get user inputs mostly, they cannot be used pending an active modal
dialog.

Fortunately, you can hide and activate a modal dialog in your ARX application
inside AutoCAD. Generally speaking, when a modal dialog is active, MFC disables
the access to the parent window until the modal dialog is dismissed. This is
true for most of the windows applications, so there is no exception for AutoCAD.

To do this, you need to hide the modal dialog first, activate the parent, do
acedGetXXX(), activate the modal dialog, set the focus on it and set the parent
window disabled.

1. 
   
2. GetParent ()->EnableWindow (TRUE) ; // Enable the parent
   
3. ShowWindow (SW_HIDE) ; // Hide ourself
   
4. GetParent ()->SetFocus () ; // Give focus to the parent
   
5.                 // you do not really need to
   
6.                 // do that (but it's better)
   
7. 
   
8. ads_point pt ; // Do something...
   
9. acedGetPoint (NULL, "\nPick a point: ", pt) ;
   
10. acutPrintf ("\nYou picked (%.2lf, %.2lf, %.2lf,)\n",
    
11.     pt [X], pt [Y], pt [Z]
    
12. ) ;
    
13. 
    
14. ShowWindow (SW_SHOW) ; // Show ourself
    
15. SetFocus () ; // Give focus to ourself
    
16. GetParent ()->EnableWindow (FALSE) ; // Disable the parent
    
17. EnableWindow (TRUE) ; // Because our parent was disabled
    
18.               // we need to enable ourself
    

复制代码

xulixin

已经调试成功！
void gongchengtu::OnButton3()
{
ads_point pt1;
GetTopLevelParent()->EnableWindow(TRUE
ShowWindow(SW_HIDE);
GetTopLevelParent()->SetFocus();
ads_getpoint(NULL,"\n 坐标点：",pt1);
m_px=pt1[0];
m_py=pt1[1];
ShowWindow(SW_SHOW);
SetFocus() ; // Give focus to ourself
EnableWindow (TRUE) ;
UpdateData(FALSE);
}

XDSoft

最初由 xulixin 发布
[B]已经调试成功！
void gongchengtu::OnButton3()
{
ads_point pt1;
GetTopLevelParent()->EnableWindow(TRUE
ShowWindow(SW_HIDE);
GetTopLevelParent()->SetFocus();
ads_getpoint(NULL,"\n 坐标点：",pt1)... [/B]

能跟大家说说问题的原因吗? 如何改就可以了?