There are several ways of executing files and applications from Delphi. All use the ShellAPI unit and either the ShellExecute or ShellExecuteEx. Launch files and programs from your code using Delphi. ShellExecute is Delphi Windows API function that is mostly used for launch external applications from our Delphi application. This function is.
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Delphi Tutorial: Running an external application w ShellExecute
It is trivially easy to launch your process. David I added CreateProcess too.
If that program accepts one or more parameters, you can enter these in the second edit-box. Can I print documents from within my program, without explicitly starting the application that created the document, such as: TObject ; var ExecuteResult: To make it easier to see what is happening, we made the window of the demo stay on top of all other windows.
Syntax of Windows API function.
Embarcadero: Delphi FAQ
Finally, if an error occurs, such as specifying to dekphi a non-existent program, or print a file that doesn’t exist on your system, then an appropriate error message will show up. Email Required, but never shown. The simplest method is: In this blog I have tried to cover all the ways. What happens next, depends from the state of the “Wait for termination” checkbox: This leads on to the fact that you should never call ShellExecute.
Different ways of executing applications and files from Delphi
If the checkbox is not checked, all the controls remain accessible, wether the external application is running or not. We visualized this by hiding the three group boxes, thereby hiding all the controls of the form. ShellExecute Handle, ‘open’, PChar ‘c: There was not enough memory to complete the operation.
In Delphi we don’t required any third party components to send mails. Syellexecute we need some special directories path from Microsoft Windows system to store User data or to copy some files etc.
I wrapped it all up in a ready-to-go demo project see picture abovewhich demonstrates the use of the functions discussed above.
A handle to the parent window used for displaying a UI or error messages. As eelphi time we need to update clients about their account details, status or any other information through mail. EXE file is invalid non-Win And when you click on one of the underlined labels, an HTML file will be loaded in your browser: How to open my browser with a local HTML page?
If your application is a general application launcher, you get the path from the user. Sign up using Email and Password. So what it LCID? That process handle can be obtained by using one of two Win32 API-functions to start the external program: When i want to relocate the launcher outside this folder i use this command: