Question

In the background I use a DLL for pooling data from PCI-e bus via DMA. If I run only the DLL without to update the status I can run for hours.

I receive the follow exception:

Attempted to read or write protected memory. This is often indication that other memory is corrupt.

I recived this error when I try to change button image from resources.

Code:

statusButton.Image=Resources.Status_Ok;

Or

statusButton.Image=Resources.Status_Fail;

The exception does not appear all the time!

The command is fetch by timer (System.Timers.Timer).

Answer 1

听起来你正试图从后台进程（即你的计时器）向你的UI加载一些东西，它总是试图锁定你的主线程来绘制。您需要控制该锁定，否则您将遇到锁定问题 - 尤其是在您与应用程序交互或长时间运行主线程操作时。