How can I prevent a file from being opened in the TJamShellList?

Q: How can I prevent a file from being opened in the TJamShellList?

You can use the OnBeforeShellCommand event and use the AllowExecute parameter to prevent the execution. The Command parameter when opening a file will be "default" or "open" . Alternative, assign the OnKeyDown event with this content: if Key = vk_Return then Key := 0; To prevent the automatic handling of a double click, simply add an OnDblClick event handler that contains only exit; .

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You can use the OnBeforeShellCommand event and use the AllowExecute parameter to prevent the execution. The Command parameter when opening a file will be "default" or "open".

Alternative, assign the OnKeyDown event with this content:
if Key = vk_Return then Key := 0;

To prevent the automatic handling of a double click, simply add an OnDblClick event handler that contains only exit; .

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Prevent a file from being opened

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