• MFC对话框中的编辑控件的7种操作方式


       //第一种方式

             int num1,num2,num3;

             char ch1[10],ch2[10],ch3[10];

             GetDlgItem(IDC_EDIT1)->GetWindowText(ch1,10);

             GetDlgItem(IDC_EDIT2)->GetWindowText(ch2,10);

             num1 = atoi(ch1);

             num2 = atoi(ch2);

             num3 = num1 + num2;

             itoa(num3,ch3,10);

             GetDlgItem(IDC_EDIT3)->SetWindowText(ch3);

            

             //第二种方式

             int num1,num2,num3;

             char ch1[10],ch2[10],ch3[10];

             GetDlgItemText(IDC_EDIT1,ch1,10);

             GetDlgItemText(IDC_EDIT2,ch2,10);

             num1 = atoi(ch1);

             num2 = atoi(ch2);

             num3 = num1 + num2;

             itoa(num3,ch3,10);

             SetDlgItemText(IDC_EDIT3,ch3);

             //第三种方式

             int num1,num2,num3;

             num1 = GetDlgItemInt(IDC_EDIT1);

             num2 = GetDlgItemInt(IDC_EDIT2);

             num3 = num1 + num2;

             SetDlgItemInt(IDC_EDIT3,num3);

             //第四种方式(给每个编辑框添加成员变量m_num1(int),m_num2(int),m_num3(int))

             //在此,可以设置设置输入数字的大小范围(在ClassWizard),可以对你输入的字符进行校验(比如,要求int类型,你输入了字母)

             UpdateData();

             m_num3 = m_num1 + m_num2;

             UpdateData(FALSE); 

            

             //第五种方式(给每个编辑框添加控件变量m_edit1(Category:Control,Variable type:CEdit),m_edit2(Category:Control,Variable type:CEdit),m_edit3(Category:Control,Variable type:CEdit))

             int num1,num2,num3;

             char ch1[10],ch2[10],ch3[10];

            

             m_edit1.GetWindowText(ch1,10);

             m_edit2.GetWindowText(ch2,10);

             num1 = atoi(ch1);

             num2 = atoi(ch2);

             num3 = num1 + num2;

             itoa(num3,ch3,10);

             m_edit3.SetWindowText(ch3);

             //第六种方式

             int num1,num2,num3;

             char ch1[10],ch2[10],ch3[10];

             //::SendMessage(GetDlgItem(IDC_EDIT1)->m_hWnd,WM_GETTEXT,10,(LPARAM)ch1);

             //::SendMessage(m_edit1.m_hWnd,WM_GETTEXT,10,(LPARAM)ch1);

             GetDlgItem(IDC_EDIT1) ->SendMessage(WM_GETTEXT,10,(LPARAM)ch1);

             GetDlgItem(IDC_EDIT2) ->SendMessage(WM_GETTEXT,10,(LPARAM)ch2);

             num1 = atoi(ch1);

             num2 = atoi(ch2);

             num3 = num1 + num2;

             itoa(num3,ch3,10);

             GetDlgItem(IDC_EDIT3) ->SendMessage(WM_SETTEXT,0,(LPARAM)ch3);

             //第七种方式

             int num1,num2,num3;

             char ch1[10],ch2[10],ch3[10];

             SendDlgItemMessage(IDC_EDIT1,WM_GETTEXT,10,(LPARAM)ch1);

             SendDlgItemMessage(IDC_EDIT2,WM_GETTEXT,10,(LPARAM)ch2);

             num1 = atoi(ch1);

             num2 = atoi(ch2);

             num3 = num1 + num2;

             itoa(num3,ch3,10);

             SendDlgItemMessage(IDC_EDIT3,WM_SETTEXT,0,(LPARAM)ch3);

             //编辑框复选函数 EM_SETSEL

             SendDlgItemMessage(IDC_EDIT3,EM_SETSEL,1/*开始位置*/,3/*结束位置*/);//If the start is 0 and the end is –1, all the text in the edit control is selected. If the start is –1, any current selection is deselected.

             //设置编辑框3为当前焦点所在

             m_edit3.SetFocus();

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  • 原文地址:https://www.cnblogs.com/zzhua/p/5712773.html
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