Q: How to dismiss a dialog without using the mouse

Command-D selects the Desktop folder. If you are already on the Desktop folder nothing happens...

Again, with the risk being boring):

If I have an open 'save-delete' window like the first one of the OP, and I press CMD+D the file in question is deleted.

Lex

ElCapitan.

Lexiepex wrote:

 

Again, with the risk being boring):

If I have an open 'save-delete' window like the first one of the OP, and I press CMD+D the file in question is deleted.

Lex

ElCapitan.

Not boring at all, but it is only partially correct - as it turns out, that depends on the application. Here is a small sample:

TextWrangler - Command-D works as you say.

TextEdit, Smultron, Grab -  Command-D selects the Desktop - this is the default for Cocoa applications.

Mail takes Command-D if you do Save for a new message; this is explainable by the fact that you aren't actually saving a message using the file system, it is handled internally by the application. However, if you do a Save As..., then Command-D again selects the Desktop.

TextWrangler is actually peculiar, in that holding down the Command-Key shows the shortcuts on the buttons themselves. This clearly is something that the application specifically implemented, and I haven't seen anywhere else. The screenshot shows what happens with the Command key held down. Not holding the command key, the shortcuts do not appear next to the button text.

Here is the relevant Apple support document on shortcuts:

Mac keyboard shortcuts - Apple Support

Luis, as always, you are very precise...

Your remark is quite correct, it depends on the application !

of which notice, as we say here

Thanks for the correction

kudos,

Lex