Hello Garden Dwarf,
As soon as I release the mouse button, the application ends without any message (window is closing, and I get back to the terminal prompt).
I get the same result, except that I do get a message on the command terminal:
23:34 >perl 1972_SoPW.pl
SDL cannot set video:DDraw created surface with wrong pitch at C:/Perl
+/Strawberry/strawberry-perl-ld-5.26.0.1-64bit-PDL/perl/site/lib/SDLx/
+App.pm line 146.
23:34 >
My platform:
- Windows 8.1, 64-bit
- Strawberry Perl 5.26.0
- SDL 2.546
Hope that information helps,