DWORD CThread::DestroyThread(BOOL bQueue)
{
MSG sMsg;
DWORD dwExitCode;
if (IsThreadActive())
{
for (SetEvent(m_hObject), PostThreadMessage(WM_QUIT, 0, 0); GetThreadID() != GetCurrentThreadId() && ((!bQueue && WaitForSingleObject(m_hThread, INFINITE)) || (bQueue && MsgWaitForMultipleObjects(1, &m_hThread, FALSE, INFINITE, QS_PAINT | QS_TIMER | QS_POSTMESSAGE | QS_SENDMESSAGE) == WAIT_OBJECT_0 + 1)); )
{
if (PeekMessage(&sMsg, (HWND)NULL, 0, 0, PM_QS_PAINT | PM_QS_POSTMESSAGE | PM_QS_SENDMESSAGE | PM_REMOVE))
{
if (!AfxPreTranslateMessage(&sMsg))
{
TranslateMessage(&sMsg);
DispatchMessage(&sMsg);
}
}
RestoreWaitCursor();
}
dwExitCode = GetThreadStatus();
CloseHandle(m_hThread);
CommonConstruct();
m_bAutoDelete = 0;
return dwExitCode;
}
return 0;
}
BOOL CMainFrame::OnSetCursor(CWnd* pWnd, UINT nHitTest, UINT message) {
if (_wait_cursor) {
RestoreWaitCursor();
return TRUE;
}
return CFrameWnd::OnSetCursor(pWnd, nHitTest, message);
}
// In the above example, the dialog was clearly invoked between
// the pair of calls to BeginWaitCursor and EndWaitCursor.
// Sometimes it may not be clear whether the dialog is invoked
// in between a pair of calls to BeginWaitCursor and EndWaitCursor.
// It is permissable to call RestoreWaitCursor, even if
// BeginWaitCursor was not previously called. This case is
// illustrated below, where CMyView::AnotherFunction does not
// need to know whether it was called in the context of an
// hourglass cursor.
void CMyView::OnDlgRestore()
{
// some processing ...
CFileDialog dlg(TRUE);
dlg.DoModal();
RestoreWaitCursor();
// some more processing ...
}
void InformApp::RunMessagePump(void)
{
LONG count = 0;
while (OnIdle(count++));
MSG msg;
while (::PeekMessage(&msg,NULL,0,0,PM_NOREMOVE))
{
if (msg.message == WM_COMMAND)
::PeekMessage(&msg,NULL,0,0,PM_REMOVE);
else if (PumpMessage() == FALSE)
exit(ExitInstance());
}
if (IsWaitCursor())
RestoreWaitCursor();
}
// The next example illustrates RestoreWaitCursor.
void CMyView::OnBeginDlgRestore()
{
BeginWaitCursor(); // display the hourglass cursor
// do some lengthy processing
// The dialog box will normally change the cursor to
// the standard arrow cursor, and leave the cursor in
// as the standard arrow cursor when the dialog box is
// closed.
CFileDialog dlg(TRUE);
dlg.DoModal();
// It is necessary to call RestoreWaitCursor here in order
// to change the cursor back to the hourglass cursor.
RestoreWaitCursor();
// do some more lengthy processing
Sleep(3000);
EndWaitCursor(); // remove the hourglass cursor
}
