macOS 2.4.x MSG_OPENDSM memory exception

[enlightenedmouse]

Description

DG_CONTROL / DAT_PARENT / MSG_OPENDSM fails on macOS using any of the 2.4.x releases of the TWAINDSM.framework.

malloc: Non-aligned pointer 0x1004e632a being freed
malloc: *** set a breakpoint in malloc_error_break to debug

Tested on

macOS Mojave
Version 10.14.6

[enlightenedmouse]

Seems the culprit is the CFStringCreateWithCStringNoCopy method within the DSM_LoadFunction:

twain-dsm/TWAIN_DSM/src/dsm.cpp

Line 3897 in 98a4b65

CFStringCreateWithCStringNoCopy(0, _pszSymbol, kCFStringEncodingUTF8, 0));