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Last active January 20, 2021 04:08
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NSAlert Example: How to show a NSAlert as a sheet in a NSView (Cocoa)
Raw
example-nsalert-sheet-delete.m
NSAlert *alert = [[NSAlert alloc] init];
[alert setMessageText:@"Delete this project?"];
[alert setInformativeText:@"Deleted projects cannot be restored"];
[alert addButtonWithTitle:@"OK"];
[alert addButtonWithTitle:@"Cancel"];
[alert setAlertStyle:NSWarningAlertStyle];
[alert beginSheetModalForWindow:self.window completionHandler:^(NSModalResponse returnCode) {
if (returnCode == NSAlertSecondButtonReturn) {
NSLog(@"Delete was cancelled!");
return;
}
NSLog(@"This project was deleted!");
}];
@BradleyRoss
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It appears that NSWarningAlertStyle has been deprecated

NSAlertStyle enum now has NSAlertStyleCritical, NSAlertStyleInformational, and NSAlertStyleWarning

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