[Lazarus] Modal Window Crashes on Mac OS X 10.15 Beta (Catalina)

Dmitry Boyarintsev skalogryz.lists at gmail.com
Tue Jun 11 01:56:15 CEST 2019

On Mon, Jun 10, 2019 at 6:18 PM David Jenkins via lazarus <
lazarus at lists.lazarus-ide.org> wrote:

> In now.  Mantis 35702

While the research seems to be quite thorough, the following statement:
"Error is caused because Cocoa currently doesn't run through base level
NSApplication.run and thus appropriate ._isrunning flag is not set "

contradicts Apple's documentation (

"...Methods to Override
Override run if you want the app to manage the main event loop differently
than it does by default. (This a critical and complex task, however, that
you should only attempt with good reason.)"

If the first statement is true, then run cannot and should not be overriden
at all.

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