MFC中子对话框访问主对话框的变量和函数

 1 父窗口dlg1 中打开 dlg2 时，dlg2 能修改 dlg1 中的成员变量
 2 
 3 //dlg1.cpp 
 4 
 5 #include "dlg2.h" 
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 7 CDlg1::OnButton1() 
 8 
 9 { 
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11 CDlg2 dlg2; 
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13 dlg2.m_pDlg1 = this; 
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15 dlg2.DoModal(); 
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17 }
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19 //dlg2.h 
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21 class CDlg1;//添加dlg1类的声明 
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23 class CDlg2 : public CDialog 
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25 { 
26 
27 ... 
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29 public: 
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31 CDlg1 *m_pDlg1; 
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33 }
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35 
36 BOOL CDlg2 ::OnInitDialog()
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38 {
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40   …
41 
42 //初始化中或者你认为必要的函数中
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44 CDlg1*  dlg1 = (CDlg1*)this->GetParent();
45 
46  …
47 
48 }
49 
50 //dlg2.cpp 
51 
52 #include "dlg1.h"

转载于:https://www.cnblogs.com/fag888/p/5789137.html