TQScintilla on MacOS/X All versions of TQt for MacOS/X up to an including Qt v3.3.2 have a bug which crashes TQScintilla. The following patch needs to be applied to TQt: --- src/kernel/qt_mac.h 2004-04-21 00:15:43 -0000 +++ src/kernel/qt_mac.h 2004-04-21 00:15:43 -0000 @@ -395,22 +395,28 @@ inline QMacSavedPortInfo::~QMacSavedPortInfo() { if(mac_window_count) { - if(valid_gworld) - SetGWorld(world,handle); //always do this one first - else - setPaintDevice(qt_mac_safe_pdev); - SetClip(clip); - DisposeRgn(clip); - SetPenState(&pen); - RGBForeColor(&fore); - RGBBackColor(&back); + bool set_state = false; + if(valid_gworld) { + set_state = IsValidPort(world); + if(set_state) + SetGWorld(world,handle); //always do this one first + } else { + setPaintDevice(qt_mac_safe_pdev); + } + if(set_state) { + SetClip(clip); + SetPenState(&pen); + RGBForeColor(&fore); + RGBBackColor(&back); + } + DisposeRgn(clip); } if(fi) delete fi; qt_mac_current_painter = painter; #if defined(TQT_THREAD_SUPPORT) if(qt_mac_port_mutex) - qt_mac_port_mutex->unlock(); + qt_mac_port_mutex->unlock(); #endif }