On Wednesday, 5 February 2020 at 20:01:19 UTC, Marcone wrote: > Sorry! Solved. Just need add # in this line: > > get_resource("#300", "BMP", "melancia.bmp"); the mistake, very imho, is not check windows API functions results. you can use wenforce: https://dlang.org/phobos/std_windows_syserror.html#.wenforce