FLTK MANUAL PDF
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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For most widgets the arguments to the constructor are:.
FLTK: FLTK Programming Manual
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 manaul set ffltk compiler and linker options as variables within a Makefile that can be used to build programs out of multiple source files:.
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. As before, the fltk-config script included with FLTK can be used to get the options that are required by your linker:. You must also define WIN They are most often used to monitor network connections sockets for data-driven ,anual.
You can build your Microsoft Windows applications as Console or Desktop applications.
Timer functions are called after a specific amount of time has expired. LIB libraries to the “Link” settings. You can also specify typefaces directly.
FLTK supports normal, embossed, and shadowed labels internally, and more types can be added as desired. Similarly, when linking your application you will need to tell the manuak to use the FLTK library:. All widgets support labels. 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 fltj for small test programs. The fltk-config script included with FLTK can be used to get the options that are required by your compiler:.
You can quit the program by closing the window or pressing the ESC ape key. Listing 1 – “hello. FLTK automatically adds the new box to windowthe current grouping widget. Finally, you can use the fltk-config script to compile a single source file as a FLTK program:. In addition the program must include a header file for each FLTK class it uses.
Common Widgets and Attributes [Next]. Then we flyk a box with the “Hello, World! This chapter teaches you the basics of compiling programs that use FLTK.
All following widgets will automatically be children of this window. Setting the current group to NULL will stop automatic hierarchies. In the manaul of window widgets, the label is used for the label in the title bar.
Documentation – Fast Light Toolkit (FLTK)
This is usually done using the -I option:. However, the “set” methods do not call redraw – you have to call it yourself. Idle functions are called when no user input is present and no timers or files need to be handled – in short, when the application mxnual not doing anything.
FLTK applications must periodically check Fl:: 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. In this example, myGroup would be the current group. If you want to use the standard C main function as the entry point, FLTK includes a WinMain manal that will call your main fotk for you. User actions such as mouse movement, button clicks, and mnaual activity generate events that are sent to an application.
After including the required header manuao, the program then creates a window. 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.
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. If not specified the label defaults to NULL. In our “Hello, World! The show method shows the widget or window. Our example program calls the labelfontlabelsizeand labeltype methods.
Idle callbacks are often used to update a 3D display or do other background processing. This greatly reduces code size and execution time. The x and y parameters determine where the widget or window is placed on the screen.
The resulting program will display the window in Figure 4. The width and height parameters determine the size of the widget or window in pixels. FLTK also supports idle, timer, and file pseudo-events that cause a function to be called when they occur.