cross-platform

问题 I'm (going to be) writing an application in Qt that will run on the 3 main OSes (Windows, Linux and Mac). One of the features of this app is that it needs USB to talk to a piece of custom external hardware. Is there a cross-platform USB library available? 回答1: Try libusb. Supported operating systems: Linux, FreeBSD, NetBSD, OpenBSD, Darwin, MacOS X (and Windows, through the libusb-win32 project). But you should note that it uses libusb0.sys kernel-mode driver on Windows, which is not WHQL

问题 Is it possible to determine on which platform (GNU/Linux, Win32, OS X) my Vala app is running? 回答1: As Vala is a compiled language (as opposed to intermediate or interpreted) you can determine the platform using your favorite build tool and use conditional compilation. Something like: #if WINDOWS message ("Running on Windows"); #elif OSX message ("Running on OS X"); #elif LINUX message ("Running on GNU/Linux"); #elif POSIX message ("Running on other POSIX system"); #else message ("Running on

问题 I'd like to configure my CMake project in a way, so that a single build execution targets multiple platforms (in my case I'd like to build for Linux and Windows, x86_32 and x86_64 targets each). I have the cross compiler toolchains installed and working, and building for each individual target works. So the challenge is setting up CMake in a way, that the toolchain and the CMAKE_SYSTEM_… variables are set appropriately for each sub-build. How can I do that? 回答1: This is not possible, in

问题 I'd like to configure my CMake project in a way, so that a single build execution targets multiple platforms (in my case I'd like to build for Linux and Windows, x86_32 and x86_64 targets each). I have the cross compiler toolchains installed and working, and building for each individual target works. So the challenge is setting up CMake in a way, that the toolchain and the CMAKE_SYSTEM_… variables are set appropriately for each sub-build. How can I do that? 回答1: This is not possible, in

问题 I am getting the following error while trying to build my solution. I am trying to update an existing project that I haven't touched for a few months. Its location in my PC has not changed. C:\Program Files (x86)\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets(2,2): Error MSB4018: The "ConvertResourcesCases" task failed unexpectedly. System.IO.FileNotFoundException: Could not find file 'obj\Debug\res\anim\slide_out_left.xml'. File name: 'obj\Debug\res\anim\slide_out_left.xml' at System

问题 I have an application which I have managed to keep reasonably cross-platform between windows and Linux. Cmake and Boost have been helpful in this endeavor. The time has come to link to a .dll which has been written for windows. If I can put off the conversion of the dynamically linked library it would be a good thing. Other windows applications connect up to this library like this: HINSTANCE dll; dll = LoadLibraryA(filename); //... libFuncPtr = (libFuncPtr)GetProcAddress(dll, "libFunc"); I'd

问题 This code executes on linux but throws an AttributeError: type object 'T' has no attribute 'val' on windows, why? from multiprocessing import Process import sys class T(): @classmethod def init(cls, val): cls.val = val def f(): print(T.val) if __name__ == '__main__': T.init(5) f() p = Process(target=f, args=()) p.start() 回答1: Windows lacks a fork() system call, which duplicates current process. This has many implications, including those listed on the windows multiprocessing documentation

问题 I unsuccessfully searched for some documentation of how to integrate the Ionic Framework with trigger.io, but I don't see any. If anyone knows or has some, I'd love to see them. If not, I'll venture forward and post my steps here :) 回答1: Including Ionic Framework Ionic Framework provides CSS and JavaScript libraries that you would include in your HTML. There are two methods for including Ionic Framework in your trigger.io app: 1. Store the Files Locally (development/production): You can

问题 I unsuccessfully searched for some documentation of how to integrate the Ionic Framework with trigger.io, but I don't see any. If anyone knows or has some, I'd love to see them. If not, I'll venture forward and post my steps here :) 回答1: Including Ionic Framework Ionic Framework provides CSS and JavaScript libraries that you would include in your HTML. There are two methods for including Ionic Framework in your trigger.io app: 1. Store the Files Locally (development/production): You can

问题 I need to build an installer that does the following: Installs my jar on the client. Auto-detects if JRE is installed (in which case it does not re-install it), otherwise installs it without the user clicking on another button. Auto-starts the application when the client is booted. Works across Windows, Mac and Linux. Any idea how to go about it? 回答1: If a commercial tool is ok, I can recommend install4j. 1, 2 and 4 are easy to do with it, but about 3 I'm not sure. Edit : You could probably