如何判断某个openDCL对话框是否已打开？

挚友01

如何判断某个openDCL对话框是否已打开？

newer

去看下本版的函数发布提供的函数

http://bbs.xdcad.net/forum.php?m ... sortid&sortid=1

kqqt6236

学习了。      

挚友01

(if (not (setq project-path (dcl_Project_Load "cz_kg.odcl" T)))
    (progn ;项目无法加载，报告或记录错误
       (alert (strcat "* * * 在CAD搜索目录中未找到[" cz_kg.odcl "]文件!"))
       (exit) ;立即退出 (或采取纠正动作并重试)
    )   
    (progn
      (setq intResult2017 (dcl_FORM_SHOW cz_kg_form1))
) )  
我再打开其它opendcl对话框时，只要判断"cz_kg_form1"是否已打开就成，有没有简便的语句?

newer

挚友01 发表于 2017-2-3 10:34

只有非模式对话框你才有这个需求

你去看下我给你的链接，如何判断一个非模式对话框是否是激活状态，里面有代码。

st788796

OpenDCL Help

Furthermore, since the dialog may already be active when startup code executes (after opening a second drawing file, for example), it must act accordingly. For example, if the application must read some initialization settings from the registry, it likely needs to do that only when the modeless dialog is initially activated. If such initialization is performed in the dialog's OnInitialize event, it will only get executed once when the dialog is first activated. If the application needs to determine at runtime whether the dialog is already active it can use an expression like the following:

(and MyProject-MyForm (dcl-Form-IsActive MyProject-MyForm))

In addition to programming startup code to act appropriately when more than one drawing is opened, modeless dialogs must also behave correctly when all open drawings are closed (resulting in a state referred to as a "no doc state") or when the user switches between multiple active drawings. If the modeless dialog contains controls whose settings or properties depend on the drawing contents, then it must define event handlers for the OnDocActivated and OnEnteringNoDocState events to update the controls as the document state changes.

非模态对话框除了判断 Form 存在和显示，还应该考虑 文档切换（OnDocActived）以及全部文档关闭后（OnEnteringNoDocState）