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 .
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If you want to use the standard C main function as the entry point, FLTK includes a WinMain function that will call your main function for you.
This greatly reduces code size and execution time. A complete list of all label options can be found in the section on Labels and Label Types. Timer functions are called after a specific amount of time has expired. This is usually done using the -I option:. Widgets are commonly ordered into functional groups, which in turn may be grouped again, creating a hierarchy of widgets. 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:.
They are most often used to monitor network connections ftk for data-driven displays. FLTK applications must periodically check Fl:: However, the “set” methods do not call redraw – you have to call it yourself.
If not specified the label defaults to NULL. 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.
All widgets support labels. In this example, myGroup would be the current group. Then we create a box with the “Hello, World!
Common Widgets and Attributes [Next]. Manaul details are available in the Box Types section. This chapter teaches you the basics of compiling programs manuaal use FLTK.
Listing 1 shows a simple “Hello, World! You can also specify typefaces directly. The application may then ignore the events or respond to the user, typically by redrawing a button in the “down” position, f,tk the text to an input field, and so forth.
In the case of window widgets, the label is used for the label in the title bar. As before, the fltk-config script included with FLTK can be used to get the options that are required by your linker:.
In our “Hello, World! In addition the program must include a header file for each FLTK class it uses.
FLTK automatically adds the new box to windowthe current grouping widget. You can quit the program by closing the window or pressing the ESC ape key. You can build your Microsoft Windows applications as Console or Desktop applications. LIB libraries to the “Link” settings. File functions are called when data is ready to read or write, or when an error condition occurs on a file. Finally, you can use the fltk-config script to compile a single source file as a FLTK program:.
All following widgets will automatically be children of this window. The width and height parameters determine the size of the widget or window in pixels. Our example program calls the labelfontlabelsizeand labeltype methods. The previous section described mnual to use fltk-config to build a flto consisting of a single source file from the command line, and this is very convenient for small test programs.
You must also define WIN The maximum widget size is typically governed by the underlying window system or hardware. The x and y parameters determine where the widget or window is placed on the screen. 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.
The labeltype method sets the fltm of label. They can be used to pop up a progress dialog after a certain amount of time or do other things that need to happen at more-or-less regular intervals.
Idle callbacks are often used to update a 3D display or do other flgk processing.
Documentation – Fast Light Toolkit (FLTK)
Listing 1 flt, “hello. In FLTK the top left corner of the window or screen is the origin i. Similarly, when linking your application you will need to tell the compiler to use the FLTK library:.