QMC2 v0.2.b18 is released. M.A.M.E. Catalog / Launcher II (also referred to as QMC2) is the successor of one of the first XMAME GUI frontends available, QMamecat (derived from MAMECAT, which was text-only). QMC2 has been rebuilt from scratch as a Qt 4 project. Parts of the design and code were inspired by its predecessor. The new design was made as flexible as possible to minimize dependencies from frontend- and CLI-related MAME changes, which was a major deficiency of QMamecat. QMC2 uses a template-based MAME configuration scheme, which can easily be enhanced with additional command line options (defined in an XML template file).

QMC2 v0.2.b18 Changelog:
fix: welcome dialog: the initial/optional hashpath setting must be stored under MESS (not MAME)
fix: Qt 4.7+ only: worked around a Qt bug that caused the first embedded emulator whose options were activated to disappear (visually)
fix: corrected concurrent/mixed joystick control when emulators are embedded
fix: avoid a QWebInspector warning by setting the application's organization name (only for builds with BROWSER_EXTRAS=1); as a result, QWebInspector will now correctly (re)store its settings in ~/.config/qmc2.conf
fix: corrected cursor positioning when editing strings in delegated item views (emulator configuration widgets and MESS device setup)
fix: avoid possible qUncompress() warnings due to empty input data
fix: embedder: corrected client resizing issues on maximized embedded emulators
fix: embedder: make sure the next visible embedded emulator (if any) gains input focus when the currently focused embed client is released
fix: set the codec for C-string conversion to the current locale's codec in order to correctly support unicode characters used in XML data (however, note that this makes the creation of XML- and gamelist-caches a bit slower)
fix: ROMAlyzer: just because chdman verifies the file integrity as good doesn't mean that it's the wanted file, so we still need to use the header checksums for comparison
imp: foreign emulator support: a working directory can now also be specified in the registration of foreign emulators (this was particularly added to support RAINE, but it's a good idea anyway)
imp: SDLMESS/MESS templates updated to 0.140 (no new or changed options)
imp: SDLMAME/MAME/MAMEUIFX32 templates updated to 0.141 (new options profile and bench for MAME, new option uifont for all, changed default value of coin_lockout for MAMEUIFX32, removed option volume_adjust for MAMEUIFX32, new option hashpath for all)
imp: UNIX build: forcedly disable pretty compilation output ('make PRETTY=1 ...') for Qt 4.7+ as it produces irritating (but harmless) shell warnings
imp: updated redistributed Qt translations from Qt 4.7.1
imp: embedder snapshot tool: the snapshot viewer now also hides itself when the escape key is pressed -- we're no longer bypassing the X11 window manager and are instead using a managed frameless window (the window manager must understand Motif and/or NETWM hints for this to work; however, most - if not all - modern WMs should be able to handle this)
imp: embedder: cleaner layout handling to avoid flickering borders due to auto-maximization
imp: ROMAlyzer: checksum columns will only be shown in the analysis report when their calculation has been enabled in the settings
imp: support for additional XML data in game/machine details (status for ROMs, disks and software-lists, optional for ROMs and disks)
new: embedder: the embedder options drop down menu now also contains a copy command item
wip: adding support for game/machine attached youtube.com videos -- will likely only work for Qt 4.7+ as it uses the embeddable youtube.com video player which in turn needs the npviewer browser plugin

Download: QMC2 v0.2.b18
Source: Here