How do I start a process from C

Question

How do I start a process  such as launching a URL when the user clicks a button

User · Answer

You can use the System Diagnostics Process Start method to start a process  You can even pass a URL as a string and it ll kick off the default browser

User · Answer

class ProcessStart       static void Main string   args                Process notePad   new Process             notePad StartInfo FileName      notepad exe           notePad StartInfo Arguments    ProcessStart cs            notePad Start

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Use the Process class  The MSDN documentation has an example how to use it

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var path   Path Combine AppDomain CurrentDomain BaseDirectory    YourSubDirectory yourprogram exe    Process Start new ProcessStartInfo path

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Just as Matt says  use Process Start   You can pass a URL  or a document  They will be started by the registered application   Example   Process Start  Test Txt      This will start Notepad exe with Text Txt loaded

User · Answer

var path   Path Combine AppDomain CurrentDomain BaseDirectory    YourSubDirectory yourprogram exe    Process Start new ProcessStartInfo path

User · Answer

You can use the System Diagnostics Process Start method to start a process  You can even pass a URL as a string and it ll kick off the default browser

User · Answer

Just as Matt says  use Process Start   You can pass a URL  or a document  They will be started by the registered application   Example   Process Start  Test Txt      This will start Notepad exe with Text Txt loaded

User · Answer

You can use the System Diagnostics Process Start method to start a process  You can even pass a URL as a string and it ll kick off the default browser

User · Answer

Declare this   DllImport  user32    private static extern bool SetForegroundWindow IntPtr hwnd    DllImport  user32    private static extern bool ShowWindowAsync IntPtr hwnd  int a     And put this inside your function   note that  checkInstalled  is optional  but if you ll use it  you have to implement it   if  ckeckInstalled  example          int count   Process GetProcessesByName  example   Count        if  count  lt  1          Process Start  example exe        else               var proc   Process GetProcessesByName  example   FirstOrDefault            if  proc    null  amp  amp  proc MainWindowHandle    IntPtr Zero                        SetForegroundWindow proc MainWindowHandle               ShowWindowAsync proc MainWindowHandle  3                       NOTE  I m not sure if this works when more than one instance of the  exe is running

User · Answer

As suggested by Matt Hamilton  the quick approach where you have limited control over the process  is to use the static Start method on the System Diagnostics Process class     using System Diagnostics      Process Start  process exe      The alternative is to use an instance of the Process class  This allows much more control over the process including scheduling  the type of the window it will run in and  most usefully for me  the ability to wait for the process to finish   using System Diagnostics      Process process   new Process       Configure the process using the StartInfo properties  process StartInfo FileName    process exe   process StartInfo Arguments    -n   process StartInfo WindowStyle   ProcessWindowStyle Maximized  process Start    process WaitForExit      Waits here for the process to exit    This method allows far more control than I ve mentioned

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To start Microsoft Word for example  use this code   private void button1 Click object sender  EventArgs e        string ProgramName    winword exe       Process Start ProgramName       For more explanations  check out this link

User · Answer

Declare this   DllImport  user32    private static extern bool SetForegroundWindow IntPtr hwnd    DllImport  user32    private static extern bool ShowWindowAsync IntPtr hwnd  int a     And put this inside your function   note that  checkInstalled  is optional  but if you ll use it  you have to implement it   if  ckeckInstalled  example          int count   Process GetProcessesByName  example   Count        if  count  lt  1          Process Start  example exe        else               var proc   Process GetProcessesByName  example   FirstOrDefault            if  proc    null  amp  amp  proc MainWindowHandle    IntPtr Zero                        SetForegroundWindow proc MainWindowHandle               ShowWindowAsync proc MainWindowHandle  3                       NOTE  I m not sure if this works when more than one instance of the  exe is running

User · Answer

Include the  using System Diagnostics    And then call this Process Start  Paste your URL string here      Try something like this   using System Web UI  using System Web UI WebControls  using System Diagnostics   namespace btnproce       public partial class WebForm1   System Web UI Page               protected void Page Load object sender  EventArgs e                                protected void Button1 Click object sender  EventArgs e                        string t   Balotelli               Process Start  http   google com search q     t                       Please note that it is a sample ASP NET page as an example  You should try and improvise a little bit

User · Answer

Use the Process class  The MSDN documentation has an example how to use it

User · Answer

Use the Process class  The MSDN documentation has an example how to use it

User · Answer

To start Microsoft Word for example  use this code   private void button1 Click object sender  EventArgs e        string ProgramName    winword exe       Process Start ProgramName       For more explanations  check out this link

User · Answer

Just as Matt says  use Process Start   You can pass a URL  or a document  They will be started by the registered application   Example   Process Start  Test Txt      This will start Notepad exe with Text Txt loaded

User · Answer

Just as Matt says  use Process Start   You can pass a URL  or a document  They will be started by the registered application   Example   Process Start  Test Txt      This will start Notepad exe with Text Txt loaded

User · Answer

Include the  using System Diagnostics    And then call this Process Start  Paste your URL string here      Try something like this   using System Web UI  using System Web UI WebControls  using System Diagnostics   namespace btnproce       public partial class WebForm1   System Web UI Page               protected void Page Load object sender  EventArgs e                                protected void Button1 Click object sender  EventArgs e                        string t   Balotelli               Process Start  http   google com search q     t                       Please note that it is a sample ASP NET page as an example  You should try and improvise a little bit

User · Answer

Use the Process class  The MSDN documentation has an example how to use it

User · Answer

You can use the System Diagnostics Process Start method to start a process  You can even pass a URL as a string and it ll kick off the default browser

User · Answer

I used the following in my own program     Process Start  http   www google com etc etc test txt     It s a bit basic  but it does the job for me

User · Answer

You can use this syntax for running any application   System Diagnostics Process Start  Example exe      And the same one for a URL  Just write your URL between this      Example   System Diagnostics Process Start  http   www google com

User · Answer

As suggested by Matt Hamilton  the quick approach where you have limited control over the process  is to use the static Start method on the System Diagnostics Process class     using System Diagnostics      Process Start  process exe      The alternative is to use an instance of the Process class  This allows much more control over the process including scheduling  the type of the window it will run in and  most usefully for me  the ability to wait for the process to finish   using System Diagnostics      Process process   new Process       Configure the process using the StartInfo properties  process StartInfo FileName    process exe   process StartInfo Arguments    -n   process StartInfo WindowStyle   ProcessWindowStyle Maximized  process Start    process WaitForExit      Waits here for the process to exit    This method allows far more control than I ve mentioned

User · Answer

You can use this syntax for running any application   System Diagnostics Process Start  Example exe      And the same one for a URL  Just write your URL between this      Example   System Diagnostics Process Start  http   www google com

User · Answer

If using on Windows Process process   new Process    process StartInfo Filename    quot Test txt quot   process Start     Works for  Net Framework but for Net core 3 1 also need to set UseShellExecute to true Process process   new Process    process StartInfo Filename    quot Test txt quot   process StartInfo UseShellExecute   true  process Start

User · Answer

class ProcessStart       static void Main string   args                Process notePad   new Process             notePad StartInfo FileName      notepad exe           notePad StartInfo Arguments    ProcessStart cs            notePad Start

User · Answer

If using on Windows Process process   new Process    process StartInfo Filename    quot Test txt quot   process Start     Works for  Net Framework but for Net core 3 1 also need to set UseShellExecute to true Process process   new Process    process StartInfo Filename    quot Test txt quot   process StartInfo UseShellExecute   true  process Start

User · Answer

I used the following in my own program     Process Start  http   www google com etc etc test txt     It s a bit basic  but it does the job for me

User · Answer

As suggested by Matt Hamilton  the quick approach where you have limited control over the process  is to use the static Start method on the System Diagnostics Process class     using System Diagnostics      Process Start  process exe      The alternative is to use an instance of the Process class  This allows much more control over the process including scheduling  the type of the window it will run in and  most usefully for me  the ability to wait for the process to finish   using System Diagnostics      Process process   new Process       Configure the process using the StartInfo properties  process StartInfo FileName    process exe   process StartInfo Arguments    -n   process StartInfo WindowStyle   ProcessWindowStyle Maximized  process Start    process WaitForExit      Waits here for the process to exit    This method allows far more control than I ve mentioned

User · Answer

As suggested by Matt Hamilton  the quick approach where you have limited control over the process  is to use the static Start method on the System Diagnostics Process class     using System Diagnostics      Process Start  process exe      The alternative is to use an instance of the Process class  This allows much more control over the process including scheduling  the type of the window it will run in and  most usefully for me  the ability to wait for the process to finish   using System Diagnostics      Process process   new Process       Configure the process using the StartInfo properties  process StartInfo FileName    process exe   process StartInfo Arguments    -n   process StartInfo WindowStyle   ProcessWindowStyle Maximized  process Start    process WaitForExit      Waits here for the process to exit    This method allows far more control than I ve mentioned

[c#] How do I start a process from C#?

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