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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However, the “set” methods do not call redraw – you have to call it yourself. Idle callbacks are often used to update flti 3D display or do other background processing.

In this example, myGroup would be the current group. For most widgets the arguments to the constructor are:.

A complete list of all label options can be found in the section on Labels and Label Types. You can build your Microsoft Windows applications as Console or Desktop applications.


FLTK supports normal, embossed, and shadowed labels internally, and more types can be added as desired. The maximum widget size is typically governed by the underlying window system or hardware. The resulting program will display the window in Figure 4. In FLTK the top left corner of the window or screen is the origin i.


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. If not specified the label defaults to NULL. Setting the current group to NULL will stop automatic hierarchies. File functions are called when data manuql ready to read or write, or when an error condition occurs on a file. Common Widgets and Attributes [Next].

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 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. FLTK applications manuwl periodically check Fl:: This is usually done using the -I option:. As before, the fltk-config script included with FLTK can be used to get the options that are required by your linker:.

FLTK FLTK Programming Manual

After including the required header files, the program then creates a window. Our example program calls the labelfontlabelsizeand labeltype methods. This chapter teaches you gltk basics of compiling programs that use FLTK. A “set” method is always of the form “void name type “, and a “get” method is always of the form “type name const”.

Finally, you can use the fltk-config script to compile a single source file as a FLTK program:. 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.


The flt, method sets nanual type of label. Similarly, when linking your application you will need to tell the compiler to use the FLTK library:. More details are available in the Box Types section. All widgets support labels. FLTK automatically adds the new box to windowthe current grouping widget.

The fltk-config script included with FLTK can be used to get the options that are required by your compiler:. In our “Hello, World!

The show method shows the widget or window. In the case of window widgets, the label is used for the label in the title bar. You can also specify typefaces directly. Then we create a box with the “Hello, World! But fltk-config can also be used to set the compiler and linker options as variables within a Amnual that can be used to build programs out of multiple source files:. User actions such fltj mouse movement, button clicks, and keyboard activity generate events that are sent to an application.