This page has some screenshots of ggcov in action. Click on the thumbnail images to see larger images.

An online example of the Web edition of ggcov is available.

Summary Window Shows summaries of line, call and branch coverage statistics, as percentages, counts and colour coded bars. Scope of summary can be chosen from: overall, filename, function, or a range of lines within a file.	File List Window Shows all the source files, with line, call and branch coverage statistics. Directories are optionally shown as a tree, with summarised statistics. The list can be sorted on any of the columns by clicking on the column title. Double-clicking on a row pops up a new Source Window displaying the corresponding file.	Function List Window Shows all the covered functions, with line, call and branch coverage statistics. The list can be sorted on any of the columns by clicking on the column title. Double-clicking on a row pops up a new Source Window displaying the corresponding function.
Calls List Window Shows function calls between any coveraged functions, and the number of times each call was made. Combo boxes allow filtering on calling function or called function. Note:This window depends in part on data scanned from object files, which will not work on all platforms.	Call Butterfly Window Shows, for a particular function, all the functions that call it and how many times they called it, and all the functions that it calls and how many times it called them. Double-clicking on a function name in either list navigates the window to that function. Handles covered functions and external library functions (e.g. printf) called directly from covered functions. Note:This window depends on data scanned from object files, which will not work on all platforms.	Source Window Shows a particular source file, with line numbers and execution counts for each line. Lines are colour coded: green - executed at least once yellow - part of the line executed red - never executed blue - suppressed black - no executable code
Call Graph Window Shows the graph of calls between functions graphically, with colour coding for each function and calls between functions. Note:This window depends on data scanned from object files, which will not work on all platforms. Note: the graph layout code for this window is in an early stage of development and may respond badly (looping or crashing) to some data sets.	Report Window Shows textual reports which give various interesting summaries of coverage data. These same reports are available in text mode by using tggcov --report.	Lego Diagram Window Shows the proportions of covered vs uncovered code code for projects with multiple files and directories.