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TheIDE and Ultimate++ File Types



File types recognized by TheIDE:


.cpp, .cc, .cxx, .c, .m, .mm


Files with these extensions are recognized as source files by TheIDE C++ builders.

.h, .hpp

Header files. C++ builders provide automatic header dependency tests. U++ packages tend to use hpp instead of h in case that file contains template function definitions.


This file type is recognized as .cpp source file, but unlike regular .cpp, which might be placed into the library first and eventually eliminated by linker, .icpp one is always linked as object file. This forces the file to be always linked. The rationale of this is that you can put module initialization code into .icpp that is linked into the executable even when code is not referenced from other files.


Java files (Android builder).


Windows resource files.


Layout files. Contain layouts of e.g. dialogs.


Image files. Contain icons and other raster images.


Translation files containing translation of strings used in package to various languages.


Scripts and other meta-information. Contain widget descriptions for layout designer, including visual representation description using ESC scripts.


Project templates.


Fixed macro definitions overrides for Assist++ C++ parser.



TheIDE displays images and if they are smaller than 1024x768, edits them using icon designer.




TheIDE displays images.


U++ rich text format.


This file contains description of importing 3rd party source files contained in package.



Other text files you might encounter in packages (TheIDE might have highlighting for them)



Re-definable keys definition file.


These files are usually included by some .cpp file(s) for various purposes.


Database schema files. Contain definitions of database layouts. U++ database applications build database schema building scripts from these files and also use them to define structures and constants and variables needed for database interaction.


Skylark HTML templates.


This file contains license info for package.


Contains license explanation.


List of authors.



Other files and directories that you can encounter in package directories



Package definition file. Its name must be the same as name of package folder. It is normally managed by TheIDE's package organizer.


Directories with this extension represent Topic++ group. Inside this directories are topic files with the same .tpp extension.


This file inside .tpp directories contains is Topic++ generated file for inclusion of topic group into C++.


Pre-parsed tpp files for fast searching.


Used by BLITZ to properly include icpp files before the rest of the code.


Older format for spelling dictionaries, superseded by .udc



Files found in the installation root folder.  You can backup or copy your configuration settings by copying the files in the installation folder.



This is a binary file file takes its name from theide.exe or whatever the name of the executable is that runs the ide.  It contains configuration settings which are a serialization of the Setup->Environment dialog.


A text file that contains an assembly configuration as specified in the Assembly setup dialog.


A text file that contains the build settings associated with a particular compiler/ linker ("build method")

cfg folder

This folder holds cache files of theide (tdx,cache,pkg_cache) + and configuration files (per package settings - opened files, cursor positions etc.)


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