Question

我试图将一些法典从C++到C#。

我在《C++法典》中就这样说:

watchdogTimer = SetTimer(1,1000,NULL);
...
KillTimer(watchdogTimer);

该法典做了哪些工作,以及如何把这带至C#?

感谢。

Answer 1

CWnd:Settimer function You ooking at Creats a timer that sents WM_TIMER activities to the即窗口。这与部分,载于NET。其行为与<代码>略有不同。系统、时间设计/编码。有两个特别相关的差别:

Windows.Forms.Timer calls the event handler on the UI thread. By default, System.Timers.Timer calls the event handler on a threadpool thread. You can use SynchronizingObject property to have the System.Timers.Timer call on the UI thread.

Another difference is that it s not possible to encounter reentrancy problems with the Windows Forms timer because Windows won t allow multiple WM_TIMER messages from the same timer in the queue, nor will it place a WM_TIMER message in the queue if one is already being processed. This is generally a good thing.

<代码>Systemrs.timer, 而另一方面,允许重新使用。因此,如果你花时间比时间更长,你可以同时处理多个事件。如果你的时间长度为100米,处理时间为150米,你在重新处理第一期报告时将再次收到通知。如果你使用<条码>SynchronizingObject,以迫使电离层膜炎的警示,这可能导致一整块待发的警示。

两个时间者的实施差别很大。视像仪使用旧风格。视窗时间为20年左右。这类时间需要一个窗口处理和一个信息循环,因此只能在全球倡议方案中使用。。

Answer 2

Assuming that your application is written under MFC, the SetTimer() method belongs to class CWnd and is responsible for setting up a windows timer. Documentation for this can be found at http://msdn.microsoft.com/en-us/library/49313fdf(v=vs.80).aspx. I know little about .NET but a quick google search located the following this: http://msdn.microsoft.com/en-us/library/0tcs6ww8(v=VS.90).aspx.

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