Handle double click on a file associated with my application

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Created Apr ’25

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When my application starts up I want to check if the application starts because of double click in Finder, or open file in Finder. If the file is opened from Finder I will not show Welcome screen and open directly the file. But if there is no such file it will show Welcome screen. I can register for kAEOpenDocuments but I had to wait for the event to be triggered and how long should I wait. What would be the proper way to handle this

Answered by DTS Engineer in 835907022

Here's a summary of the information from this page ~

if an app is being launched to open some documents it will be sent an 'odoc' "Open Documents" (kAEOpenDocuments) Apple event
if an app is being launched to print some documents it will be sent a 'pdoc' "Print Documents" (kAEPrintDocuments) Apple event
otherwise, the app will be sent an 'oapp' "Open Application" (kAEOpenApplication) Apple event
And, if an app is already running and it's being swapped into the foreground in front of other apps, it will be sent a 'rapp' "Re-open Application" (kAEReopenApplication) Apple event

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Answer 1

DTS Engineer OP

Apple

Apr ’25

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Here's a summary of the information from this page ~

if an app is being launched to open some documents it will be sent an 'odoc' "Open Documents" (kAEOpenDocuments) Apple event
if an app is being launched to print some documents it will be sent a 'pdoc' "Print Documents" (kAEPrintDocuments) Apple event
otherwise, the app will be sent an 'oapp' "Open Application" (kAEOpenApplication) Apple event
And, if an app is already running and it's being swapped into the foreground in front of other apps, it will be sent a 'rapp' "Re-open Application" (kAEReopenApplication) Apple event

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