2010年11月13日 · Simple. You use Q_OS flagging when you need operating system specific code and Q_WS when you need window system specific code. As an example, UI for Maemo devices (Q_WS_MAEMO_5) often needs to be different from Linux desktop but …

2015年12月9日 · Windows: Q_OS_WIN, Q_OS_WIN32 or Q_OS_WIN64 (there are a few more, Q_OS_WINCE for example, but Q_OS_WIN is defined for all windows-like os) Unix: Q_OS_UNIX; Linux: Q_OS_LINUX (Please note that Q_OS_UNIX is defined on linux too) Mac: Q_OS_MAC(for OsX and iOs), Q_OS_OSX or Q_OS_MACX; All those plattform-headers are define in qsystemdetection.h ...

2022年3月6日 · I'm porting a legacy Qt project that supports multiple platforms from qmake to cmake, and the source code handles platform-specific code is hidden behind preprocessor macros such as #if defined(Q_OS_WIN) and #if defined(Q_OS_MAC). However, my CMake project seems to not be defining Q_OS_WIN or Q_OS_MAC, thus leading these platform checks to …

2020年7月19日 · Use Q_OS_x with x being one of: DARWIN - Darwin OS (synonym for Q_OS_MAC) SYMBIAN - Symbian MSDOS - MS-DOS and Windows OS2 - OS/2 OS2EMX - XFree86 on OS/2 (not PM) WIN32 - Win32 (Windows 2000/XP/Vista/7 and Windows Server 2003/2008) WINCE - WinCE (Windows CE 5.0) CYGWIN - Cygwin SOLARIS - Sun Solaris HPUX - HP-UX ULTRIX - DEC Ultrix LINUX ...

2014年5月13日 · #ifdef Q_OS_WIN32 #include "windows.h" #endif and. #ifdef Q_OS_WIN32 #include <windows.h> #endif In this case, you should use the latter rather than the former since the latter would be used for system headers like this, whereas the former is normally used for "local" headers in your project.

2017年8月21日 · However, Qt4 and Qt5 have different macros for checking the operating system: Q_WS_WIN -> Q_OS_WIN and Q_WS_X11 -> Q_OS_LINUX, respectively. How to add #ifdef macro for certain operating system? c++

2009年1月24日 · Instead one should use the Q_OS_* set of macros which have the precise purpose of determining the Operating System. The set currently consists of the following macros for Qt 4.8:

2018年11月22日 · Then, have a factory function that'd return listener appropriate to OS. That they there would be only one single place that might require ifdefs. But in general, ifdefing something might be the best or the only course of action (e.g. when you already abstracting something). Conditional compilation is one of the few valid/justified usages of ...

2015年2月1日 · Small correction: #ifdef TARGET_OS_MAC will get you always true on both OS X and iOS, as it is defines either 0 or 1 depending on platform, but when APPLE is defined, TARGET_OS_MAC is defined as well, so checking it inside the #ifdef APPLE is worthless. You might want to use #if TARGET_OS_MAC instead. Same for all TARGET_* macros.

2015年9月25日 · I want to run some c++ code on Linux and Windows. There are some pieces of code that I want to include only for one operating system and not the other.