Waitforexit process c# example script
Note In the. NET Framework 3. When standard output has been redirected to asynchronous event handlers, it is possible that output processing will not have completed when this method returns. To ensure that asynchronous event handling has been completed, call the WaitForExit overload that takes no parameter after receiving a true from this overload. To help ensure that the Exited event is handled correctly in Windows Forms applications, set the SynchronizingObject property. When an associated process exits is shut down by the operating system through a normal or abnormal termination , the system stores administrative information about the process and returns to the component that had called WaitForExit Int The Process component can then access the information, which includes the ExitTime , by using the Handle to the exited process.
Because the associated process has exited, the Handle property of the component no longer points to an existing process resource. Instead, the handle can be used only to access the operating system's information about the process resource.
The system is aware of handles to exited processes that have not been released by Process components, so it keeps the ExitTime and Handle information in memory until the Process component specifically frees the resources. For this reason, any time you call Start for a Process instance, call Close when the associated process has terminated and you no longer need any administrative information about it.
Close frees the memory allocated to the exited process. The workflow completes OK. There are no errors. I basically don't know why the command won't run, but I am also only a beginner when it comes to script. Could you please have a quick look at the following and let me know if it matches what worked for you?
Generic Imports System. ComponentModel Imports System. Data Imports System. SqlClient Imports System. Text Namespace WorkflowActivity. Using process As System. Process Try 'Retrieve the token values If Not String. IsNullOrWhiteSpace externalProgram Then 'These settings let us specify the file name and location, and specify to the process that we wish to handle stdout and stderr ourselves.
Start 'Set the processId variable for return as a token Id 'If True then wait for the process to terminate before continuing the workflow Here the stdout is read and stored, and then we wait for the process to complete, if applicable. ReadToEnd process.
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WaitForExit seemingly does not block. While debugging, I step right over it and wait until the file shows up in the folder. By posting your answer, you agree to the privacy policy and terms of service. Sign up or log in to customize your list. Tour Start here for a quick example of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us.
Log In Sign Up. Join the Stack Overflow Community. Stack Overflow script a community of 7. As always, I really appreciate the assistance. Attached is the relevant code: Karlsen Mar 24 '14 at You'll at least have to check the ExitCode, no guarantee that a program actually sets it. The only solid counter-measure against process is copying waitforexit file yourself. As far as I can tell sox does not spawn a second process or such it does the work itself so i'd bet ons Hanses example.
Infinite for milliseconds, and Process. If you pass 0 zero to the method, it returns true only if the process has already exited; otherwise, it immediately returns false. Note In the. NET Framework 3. When standard output has been redirected to asynchronous event handlers, it is possible that output processing will not have completed when this method returns.
To ensure that asynchronous event handling has been completed, call the WaitForExit overload that takes no parameter after receiving a true from this overload. To help ensure that the Exited event is handled correctly in Windows Forms applications, set the SynchronizingObject property. When an associated process exits is shut down by the operating system through a normal or abnormal termination , the system stores administrative information about the process and returns to the component that had called WaitForExit Int The Process component can then access the information, which includes the ExitTime , by using the Handle to the exited process.
Because the associated process has exited, the Handle property of the component no longer points to an existing process resource. Instead, the handle can be used only to access the operating system's information about the process resource. The system is aware of handles to exited processes that have not been released by Process components, so it keeps the ExitTime and Handle information in memory until the Process component specifically frees the resources.
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