When I open a standard Windows Dialog like OpenDialog, SaveDialog, PrintDialog, FontDialog, etc. with the non-client area unskinned, it not possible to close the dialog with the X in the top right corner.
Tested with Delphi 7 and 10.4 with AlphaSkins 13.19 and 16.0
Stephane Senecal
CIS Group
Delphi programmer since 2001