MFC对话框中的编辑控件的7种操作方式

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　　　//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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