如何获得子窗口的句柄？(50分)

S

sungolf

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-03-12

• #1

我想向特定类的MDI子窗口发送消息，先查询所有打开的子窗口，如果<br>当前的子窗口是TNewChildForm类，就向它发送消息，请问如果获得它<br>的句柄？<br>另一个问题：如果这个时候要调用它的public函数该如何处理？<br>程序如下：<br>for i:=0 to MDIChildCount-1 do<br>&nbsp; if MDIChildren is TNewChildForm then<br>&nbsp; begin<br>&nbsp; &nbsp; // 找到了子窗口，<br>&nbsp; &nbsp; // 如果发送消息，如何取得它的句柄？<br>&nbsp; &nbsp; // 或者如何调用它的public函数？用MDIChildren.DisplayDate<br>&nbsp; &nbsp; // 不正确。<br>&nbsp; end;

 

雪

雪鹰

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GUEST, unregistred user!

• 2002-03-12

• #2

for i:=0 to MDIChildCount-1 do<br>&nbsp; if MDIChildren is TEditForm then<br>&nbsp; begin<br>&nbsp; &nbsp; showmessage(MDIChildren.caption);<br>&nbsp; &nbsp; ahwnd:=MDIChildren.handle;<br>&nbsp; &nbsp; if ahwnd&lt;&gt;null then<br>&nbsp; &nbsp; &nbsp; sendmessage(ahwnd,wm_syscommand,SC_MAXIMIZE,0);<br>&nbsp; &nbsp; &nbsp;(MDIChildren as TEditForm).DisplayDate<br>&nbsp; end;<br>end;<br><br>这样应该可以<br>

 

S

sungolf

Unregistered / Unconfirmed

GUEST, unregistred user!

• 2002-03-12

• #3

接受答案了.