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CRect clientrect;
CRect racingrect;
GetClientRect(clientrect);
ClientToScreen(clientrect);
m_RacingBox。GetClientRect(racingrect);
m_RacingBox。ClientToScreen(racingrect);
racingrect …= clientrect。TopLeft();
if( !GetExitCodeThread(m_hRed; &code) ||
code != STILL_ACTIVE )
{
// 填写红马信息
m_RedHorse。hWnd = this…》GetSafeHwnd();
m_RedHorse。color = RED;
m_RedHorse。speed = m_RSpeed。GetPos();
m_RedHorse。size = 10;
m_RedHorse。rect。TopLeft() = racingrect。TopLeft();
m_RedHorse。rect。right = m_RedHorse。rect。TopLeft()。x + racingrect。Width();
m_RedHorse。rect。bottom = m_RedHorse。rect。TopLeft()。y + racingrect。Height()/3;
m_RedHorse。x = m_RedHorse。rect。left + m_RedHorse。size;
m_RedHorse。y = m_RedHorse。rect。top + m_RedHorse。rect。Height()/2;
// 创建红马线程
m_hRed = CreateThread(NULL; 0; ThreadProc; &m_RedHorse; 0; &tID);
if(m_hRed == NULL)
{
AfxMessageBox(〃创建线程失败〃);
}
}
if( !GetExitCodeThread(m_hGreen; &code) ||
code != STILL_ACTIVE )
{
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第 9 章 多线程
// 填写绿马信息
m_GreenHorse。hWnd = this…》GetSafeHwnd();
m_GreenHorse。color = GREEN;
m_GreenHorse。speed = m_GSpeed。GetPos();
m_GreenHorse。size = 10;
m_GreenHorse。rect。TopLeft() = racingrect。TopLeft()+CPoint(0; racingrect。Height()/3);
m_GreenHorse。rect。right = m_GreenHorse。rect。TopLeft()。x + racingrect。Width();
m_GreenHorse。rect。bottom = m_GreenHorse。rect。TopLeft()。y + racingrect。Height()/3;
m_GreenHorse。x = m_GreenHorse。rect。left + m_GreenHorse。size;
m_GreenHorse。y = m_GreenHorse。rect。top + m_GreenHorse。rect。Height()/2;
// 创建绿马线程
m_hGreen = CreateThread(NULL; 0; ThreadProc; &m_GreenHorse; 0; &tID);
if(m_hGreen == NULL)
{
AfxMessageBox(〃创建线程失败〃);
}
}
if( !GetExitCodeThread(m_hBlue; &code) ||
code != STILL_ACTIVE )
{
// 填写蓝马信息
m_BlueHorse。hWnd = this…》GetSafeHwnd();
m_BlueHorse。color = BLUE;
m_BlueHorse。speed = m_BSpeed。GetPos();
m_BlueHorse。size = 10;
m_BlueHorse。rect。TopLeft() = racingrect。TopLeft()+CPoint(0; racingrect。Height()*2/3);
m_BlueHorse。rect。right = m_BlueHorse。rect。TopLeft()。x + racingrect。Width();
m_BlueHorse。rect。bottom = m_BlueHorse。rect。TopLeft()。y + racingrect。Height()/3;
m_BlueHorse。x = m_BlueHorse。rect。left + m_BlueHorse。size;
m_BlueHorse。y = m_BlueHorse。rect。top + m_BlueHorse。rect。Height()/2;
// 创建蓝马线程
m_hBlue = CreateThread(NULL; 0; ThreadProc; &m_BlueHorse; 0; &tID);
if(m_hBlue == NULL)
{
AfxMessageBox(〃创建线程失败〃);
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Visual C++ 6。0 程序设计从入门到精通
}
}
// 设置按钮状态
CButton* pBtn;
pBtn = (CButton*)GetDlgItem(IDSTART);
pBtn…》EnableWindow(FALSE);
pBtn = (CButton*)GetDlgItem(IDPAUSE);
pBtn…》EnableWindow(TRUE);
pBtn = (CButton*)GetDlgItem(IDSTOP);
pBtn…》EnableWindow(TRUE);
}
(11)响应“暂停”按钮
响应“暂停”按钮,用来暂停和继续线程,代码如下:
void CRacingDlg::OnPause()
{
// 得到 button 的指针
CButton* pBtn = (CButton*)GetDlgItem(IDPAUSE);
// 改变按钮的名称
if( !m_bPaused )
{
SuspendThread(m_hRed);
SuspendThread(m_hGreen);
SuspendThread(m_hBlue);
pBtn…》SetWindowText(〃继续〃);
}
else
{
ResumeThread(m_hRed);
ResumeThread(m_hGreen);
ResumeThread(m_hBlue);
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第 9 章 多线程
pBtn…》SetWindowText(〃暂停〃);
}
/