016 EventDemo 5

小项目

● 拖拽控件

● 设置编辑框属性

● 程序逻辑

● 获取焦点的事件

1 void CEventDemoDlg::OnSetfocusEditText()
2 {
3     // 获取焦点
4     MessageBox(L"Hello");
5 }

● 启动以后会不停的弹 下消息框

● 解决办法多拖动一个按钮即可

初始化代码

1     m_hEvent = CreateEvent(nullptr, TRUE,FALSE,nullptr);//设置位手动 设置无信号

实现代码

 1 void CEventDemoDlg::OnSetfocusEditText()
 2 {
 3     // 获取焦点
 4     //MessageBox(L"Hello");
 5     if(m_hThreadGetCount == INVALID_HANDLE_VALUE)
 6         m_hThreadGetCount = (HANDLE)_beginthreadex(nullptr, 0, ThreadGetCount, this, 0, nullptr);
 7
 8     if (m_hIsURL == INVALID_HANDLE_VALUE)
 9         m_hIsURL = (HANDLE)_beginthreadex(nullptr, 0, ThreadGetCount, this, 0, nullptr);
10
11     ResetEvent(m_hEvent);//Event设置位有信号状态
12 }
13 unsigned CEventDemoDlg::ThreadGetCount(void* lParam)
14 {
15     CEventDemoDlg* pThis = (CEventDemoDlg*)lParam;
16     WaitForSingleObject(pThis->m_hEvent, INFINITE);
17     CString szEdit;
18     //pThism_Edit.GetWindowText()
19     int strLeng = pThis->GetDlgItemTextW(IDC_EDIT_TEXT, szEdit);
20     pThis->SetDlgItemTextW(IDC_STATIC, (LPCTSTR)strLeng);
21     return 0;
22 }
23 unsigned CEventDemoDlg::ThreadIsUrl(void* lParam)
24 {
25     return 0;
26 }