執行緒的終止問題一直是可比較頭疼的問題，今天找到了乙個比較好的例子，分享給大家
# 值變化訊號
handle =-1
defrun
(self)
:try
:# 這個目前我沒弄明白這裡寫法
self.handle = ctypes.windll.kernel32.openthread(
# @undefinedvariable
win32con.process_all_access,
false
,int
(qthread.currentthreadid())
)except exception as e:
('get thread handle failed'
, e)
('thread id'
,int
(qthread.currentthreadid())
)# 迴圈傳送訊號
for i in
range(1
,101):
('value'
, i)
self.valuechanged.emit(i)
qthread.sleep(1)
class
window
(qwidget)
:def
__init__
(self,
*args,
**kwargs)
:super
(window, self)
.__init__(
*args,
**kwargs)
# 垂直布局
layout = qvboxlayout(self)
self.progressbar = qprogressbar(self)
self.progressbar.setrange(0,
100)
layout.addwidget(self.progressbar)
self.startbutton = qpushbutton(
'開啟執行緒'
, self, clicked=self.onstart)
layout.addwidget(self.startbutton)
self.suspendbutton = qpushbutton(
'掛起執行緒'
, self, clicked=self.onsuspendthread, enabled=
false
) layout.addwidget(self.suspendbutton)
self.resumebutton = qpushbutton(
'恢復執行緒'
, self, clicked=self.onresumethread, enabled=
false
) layout.addwidget(self.resumebutton)
self.stopbutton = qpushbutton(
'終止執行緒'
, self, clicked=self.onstopthread, enabled=
false
) layout.addwidget(self.stopbutton)
# 當前執行緒id
('main id'
,int
(qthread.currentthreadid())
)# 子執行緒
self._thread = worker(self)
self._thread.finished.connect(self._thread.deletelater)
self._thread.valuechanged.connect(self.progressbar.setvalue)
defonstart
(self)
('main id'
,int
(qthread.currentthreadid())
) self._thread.start(
)# 啟動執行緒
self.startbutton.setenabled(
false
) self.suspendbutton.setenabled(
true
) self.stopbutton.setenabled(
true
)def
onsuspendthread
(self)
:if self._thread.handle ==-1
:return
('handle is wrong'
) ret = suspendthread(self._thread.handle)
('掛起執行緒'
, self._thread.handle, ret)
self.suspendbutton.setenabled(
false
) self.resumebutton.setenabled(
true
)def
onresumethread
(self)
:if self._thread.handle ==-1
:return
('handle is wrong'
) ret = resumethread(self._thread.handle)
('恢復執行緒'
, self._thread.handle, ret)
self.suspendbutton.setenabled(
true
) self.resumebutton.setenabled(
false
)def
onstopthread
(self)
: self.startbutton.setenabled(
false
) self.suspendbutton.setenabled(
false
) self.resumebutton.setenabled(
false
) ret = ctypes.windll.kernel32.terminatethread(
# @undefinedvariable
self._thread.handle,0)
('終止執行緒'
, self._thread.handle, ret)
self.stopbutton.setenabled(
false
)def
closeevent
(self, event)
:if self._thread.isrunning():
self._thread.quit(
)# 強制
# self._thread.terminate()
del self._thread
super
(window, self)
.closeevent(event)
if __name__ ==
'__main__'
:import sys
import os
('pid'
, os.getpid())
w = window(
) w.show())
)
PyQt5中線程掛起終止和喚醒
執行緒的終止問題一直是可比較頭疼的問題，今天找到了乙個比較好的例子，分享給大家 valuechanged pyqtsignal int 值變化訊號 handle 1 def run self try 這個目前我沒弄明白這裡寫法 self.handle ctypes.windll.kernel32.o...
PYQT5 執行緒掛起方法
qthread執行緒掛起需要乙個qwaitcondition物件，並且需要傳入乙個qmutex物件作為引數，qmutex物件初始化的時候應該是鎖定狀態，否則將出現異常情況，參考qt多執行緒qwaitcondition的問題 然後再呼叫cond.wait 掛起執行緒。cond.wakeall 喚醒執行...
執行緒的掛起，喚醒和終止
如果是利用h afxbeginthread 建立執行緒，需要獲取控制代碼,h m hthread 執行緒的掛起 在createthread 等函式建立執行緒時，可以指定執行緒的掛起狀態，在執行過程中也可以掛起執行緒 dword suspendthread handle hthread hthread...