fltk

问题 I've just discovered FLTK and I made a makefile for my test. Here is my makefile: ################ template makefile ############## # We don't know what compiler to use to build fltk on this machine - but fltk-config does... CC = $(shell fltk-config --cc) CXX = $(shell fltk-config --cxx) # Set the flags for compiler: fltk-config knows the basic settings, then we can add our own... CFLAGS = $(shell fltk-config --cflags) CXXFLAGS = $(shell fltk-config --cxxflags) -I/System/Library/Frameworks

问题 context I am coding with others RefPerSys, a GPLv3+ project in C++17 on gitlab for GNU/Linux/x86-64/Debian/Sid. Its fltk-branch git branch is using FLTK 1.4, compiled from source code, with an Xorg display server. I have C++ classes like (in file headfltk_rps.hh): class RpsGui_Window: public Fl_Double_Window { static std::set<RpsGui_Window*> _set_of_gui_windows_; public: virtual int handle(int); protected: Fl_Menu_Bar *guiwin_menubar; std::string guiwin_label; virtual void initialize_menubar

来源： https://stackoverflow.com/questions/64431565/drawing-gnuplot-graph-inside-fltk-window

来源： https://stackoverflow.com/questions/64431565/drawing-gnuplot-graph-inside-fltk-window

来源： https://stackoverflow.com/questions/63633892/fltk-library-with-visual-studio-code

来源： https://stackoverflow.com/questions/63633892/fltk-library-with-visual-studio-code

问题 Question: Can someone give me instructions on how to install FLTK for Microsoft Visual Studio 2015, so that I can use FLTK for C++? Extra Information: the Chapter 12 drill, in Bjarne Stroustrup's Programming: Principle and Pracice using C++ wants me to install FLTK. I have Microsoft Visual Studio 2015. I downloaded the files at www.stroustrup.com/Programming/FLTK. Then I opened the fltk.dsw in C://Program Files (x86)/Microsoft Visual Studio 14.0/VC. But the build failed. I searched this

问题 I've done some tutorials and can get some things to print when I press a button but I cannot figure out how to store a value that is inserted into an input widget buy the user into a variable for me to use. I'm new to C++ and FLTK so I'm not sure if there's a simple thing like a Java Scanner to use. I'm assuming you would use something like var=input-value(); but I don't know how to use it within the callbacks since they only take certain parameters. Such as: Fl_Button *butts[2]; static void

问题 On macOS the key combination CMD+Backtick is used to cycle through the open windows of an application when using an english keyboard. On German keyboards for example the combination is CMD+< . This shortcut can even be configured using System Preferences -> Keyboard -> Shortcuts -> Keyboard -> Move focus to next window . For my multi-window GUI application using FLTK I want to utilize this shortcut, but have no idea how to fetch the combination the user has set on his or her system. So what I

问题 I've just started using Octave. When I start octave and try to plot something, the plot works but I get the following warnings repeated many times: warning: ft_render: unable to load appropriate font warning: ft_render: invalid bounding box, cannot render More warnings appear if I click and drag the plot or even mouse-over it. If I then try to add an xlabel or title, I get a segfault and octave quits. The default graphics_toolkit is fltk, which I found by starting octave and running graphics