对话框控件访问七种方式

最新推荐文章于 2025-08-16 10:51:29 发布

原创最新推荐文章于 2025-08-16 10:51:29 发布 · 805 阅读

CC 4.0 BY-SA版权

本文介绍通过不同方法在Windows应用程序中使用Win32 API从编辑框获取文本及显示计算结果。涵盖直接控件访问、消息发送及成员函数调用等多种实现方式。

/* 第1种
int num1, num2, num3;
char ch1[10], ch2[10], ch3[10];
this->GetDlgItem(IDC_EDIT1)->GetWindowText(ch1, 10);
this->GetDlgItem(IDC_EDIT2)->GetWindowText(ch2, 10);
num1 = atoi(ch1);
num2 = atoi(ch2);
num3 = num1 + num2;
itoa(num3, ch3, 10);
this->GetDlgItem(IDC_EDIT3)->SetWindowText(ch3);*/

/*第2种
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3种
int num1, num2, num3;
num1 = GetDlgItemInt(IDC_EDIT1);
num2 = GetDlgItemInt(IDC_EDIT2);
num3 = num1 + num2;
SetDlgItemInt(IDC_EDIT3, num3);*/

/*第4种
UpdateData();
m_num3 = m_num1 + m_num2;
UpdateData(FALSE);*/

/*第5种
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6种
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));
m_edit1.SendMessage(WM_GETTEXT, 10, (LPARAM)ch1);
m_edit2.SendMessage(WM_GETTEXT, 10, (LPARAM)ch2);
num1 = atoi(ch1);
num2 = atoi(ch2);
num3 = num1 + num2;
itoa(num3, ch3, 10);
m_edit3.SendMessage(WM_SETTEXT, 0, (LPARAM)ch3);*/

//第7种
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);
SendDlgItemMessage(IDC_EDIT3, EM_SETSEL, 1, 3);
m_edit3.SetFocus();