[macOS] argument passing not working on openApplication API(NSWorkspace)

Question

Created Aug ’20

Replies 3

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Views 1.6k

Participants 3

Code Block 		// pass arguments Not Working
		let url = NSURL(fileURLWithPath:
			"/Volumes/DATA/Dev/cppPlayground/cmake-build-debug/cppPlayground"
			, isDirectory: false) as URL
		let configuration = NSWorkspace.OpenConfiguration()
		var aStr = [String]()
		aStr.append("1st")
		aStr.append("2nd")
		configuration.arguments = aStr
		NSWorkspace.shared.openApplication(at: url,
											 configuration: configuration,
											 completionHandler: nil)

https://developer.apple.com/documentation/appkit/nsworkspace/3172700-openapplication

I try to open another cpp app that has main method ' int main(int argc, char **argv) '
and pass arguments.
but it was failed.
app was open successful but arguments was empty.

Code Block 		// Working But deprecated.
		let task = Process()
		task.arguments = ["test test", "2nd Argument", "3rd"]
		task.launchPath = "/Volumes/DATA/Dev/cppPlayground/cmake-build-debug/cppPlayground"
		task.launch()

this code was work. but available macOS 10.0–10.13.

is there something wrong?

Boost

Answer 1

OOPer OP

Aug ’20

Accepted Answer

I do not know much about NSWorkspace.
But there are some replacements for the deprecated methods:

Code Block let task = Process()
task.arguments = ["test test", "2nd Argument", "3rd"]
task.executableURL = URL(fileURLWithPath: "/Volumes/DATA/Dev/cppPlayground/cmake-build-debug/cppPlayground")
do {
		try task.run()
} catch {
		print(error)
}

0

Answer 2

sangpan OP

Aug ’20

thanks a lot.

could use .executableURL, .run() instead of launch()

0

Answer 3

scchen OP

Apr ’21

Discussion

The default value of this property is an empty array. When launching a new instance of an app, use this property to specify any additional launch arguments. The system inserts the app's path as the first element in the array.

If the calling process is sandboxed, the system ignores the value of this property.

https://developer.apple.com/documentation/appkit/nsworkspace/openconfiguration/3172708-arguments

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