You can view the FLTK documentation in a number of formats on-line: FLTK Developer Documents Git Quick-Start Guide (updated 28 days ago). HTML. This manual describes the Fast Light Tool Kit (“FLTK”) version , a C++ Graphical This manual is organized into the following chapters and appendices. This software and manual are provided under the terms of the GNU Library General I would like to see a chapter which explains how FLTK solves common .
|Published (Last):||14 January 2006|
|PDF File Size:||20.73 Mb|
|ePub File Size:||12.47 Mb|
|Price:||Free* [*Free Regsitration Required]|
The labeltype method sets the type of label.
The application may then ignore the events or respond to the user, typically by redrawing a button in the “down” position, adding the text to an input field, and so forth. Setting the current group to NULL will stop automatic hierarchies. In this example, myGroup would be the current group. In our “Hello, World! All following widgets will automatically be children of this window. This is usually done using the -I option:.
This greatly reduces code size and execution time. Then we create a box with the “Hello, World! Listing mxnual shows a simple “Hello, World!
FLTK Programming Manual
You can also specify typefaces directly. The previous section described how to use fltk-config to build a program consisting of a single source file from the command line, and this is very convenient for small test programs. You can quit the program by closing the window or pressing the ESC ape key.
FLTK applications must periodically check Fl:: This chapter teaches you the basics of compiling programs that use FLTK. Listing 1 – “hello.
FLTK: FLTK Basics
Idle functions are called when no user input is present and no timers or files need to be handled – in short, when the application is not doing anything. FLTK also supports idle, timer, and file pseudo-events that cause a function to be called when they occur. The width and height parameters determine the size of the widget or window in pixels. FLTK supports normal, embossed, and shadowed labels internally, and more types can be added as desired.
The label string must be in static storage such as a string constant because FLTK does not make a copy of it – it just uses the pointer. You must also define WIN Timer functions are called after a specific amount of time manyal expired. Mxnual are commonly ordered into functional groups, which in turn may be grouped again, creating a hierarchy of widgets. After including the required header files, the program then creates a window.
Newly created groups and their derived widgets implicitly call begin in the constructor, effectively adding all subsequently created widgets to itself until end is called.
The fltk-config script included with FLTK can be used to get the options that are required by your compiler:. However, the “set” methods fltl not call redraw – you have to call it yourself. The maximum widget size is typically governed by the underlying window system or hardware.
A complete list of all label options can be found in the section on Labels and Label Types. The x and y parameters determine where the widget or window is placed on the screen. In the case of window widgets, the label is used for the label in the title bar. They are most often used to monitor network connections sockets fltm data-driven displays.
In addition the program must include a header file for each FLTK class it uses. More details are available in the Box Types section.
Idle callbacks are often used to update a 3D display or do other background processing. But fltk-config can also be used to set the compiler and linker options as variables within a Makefile that can be used to build programs out of multiple source files:. As before, the fltk-config script included with FLTK can flhk used to get the options that are required by your linker:.
For most widgets the arguments to the constructor are:. User actions such as mouse movement, button clicks, and keyboard activity generate events that are sent to an application. LIB libraries to the “Link” settings.
All widgets support labels. The show method shows the widget or window. File functions are called when data is ready to read or write, or when an error condition occurs on a file. FLTK automatically adds the new box to window vltk, the current grouping widget. A “set” method is always of the form “void name type “, and a “get” method is always of the form “type name const”.