FvwmCpp − the FVWM Cpp pre‐processor FvwmCpp is spawned by fvwm, so no command line invocation will work. When called, this module will attempt to have /usr/lib/cpp pre‐process the file specified in its invocation, and then have fvwm read the resulting file. FvwmCpp can be invoked by inserting the line ’FvwmCpp’ in the .fvwmrc file. It can also be called from a menu or mouse binding. If the user wants his entire .fvwmrc file pre‐processed with FvwmCpp, then fvwm should be invoked as "fvwm ‐f /usr/lib/X11/fvwm/FvwmCpp Some options can be specified on the command line: ‐Cppopt Lets you pass an option to the cpp program. ‐Cppprog Instead of invoking "/usr/lib/cpp", fvwm will invoke name. ‐debug Causes the temporary file create by Cpp to be retained. This file is usually called "/tmp/fvwmrcXXXXXX" FvwmCpp defines some values for use in the pre‐processor file: TWM_TYPE Always set to "fvwm". SERVERHOST The name of the machine running the X Server. CLIENTHOST The name of the machine running fvwm. HOSTNAME The hostname of the machine running fvwm. Generally the same as CLIENTHOST. OSTYPE The operating system for CLIENTHOST. USER The name of the person running fvwm. VERSION The X11 version. REVISION The X11 revision number. ‐2‐ VENDOR The X server vendor. RELEASE The X server release number. WIDTH The screen width in pixels. HEIGHT The screen height in pixels. X_RESOLUTION Some distance/pixel measurement for the horizontal direction, I think. Y_RESOLUTION Some distance/pixel measurement for the vertical direction, I think. PLANES Number of color planes for the X server display BITS_PER_RGB Number of bits in each rgb triplet. CLASS The X11 visual class, ie PsuedoColor. COLOR Yes or No, Yes if the display class is neither StaticGrey or GreyScale. FVWM_VERSION The fvwm version number, ie 2.0 OPTIONS Some combination of SHAPE, XPM, NO_SAVEUNDERS, and Cpp, as defined in configure.h at compile time. FVWMDIR The directory where fvwm looks for .fvwmrc and modules by default, as determined at compile time. #define TWM_TYPE fvwm #define SERVERHOST spx20 #define CLIENTHOST grumpy #define HOSTNAME grumpy #define OSTYPE SunOS #define USER nation #define HOME /local/homes/dsp/nation #define VERSION 11 #define REVISION 0 ‐3‐ #define VENDOR HDS human designed systems, inc. (2.1.2‐D) #define RELEASE 4 #define WIDTH 1280 #define HEIGHT 1024 #define X_RESOLUTION 3938 #define Y_RESOLUTION 3938 #define PLANES 8 #define BITS_PER_RGB 8 #define CLASS PseudoColor #define COLOR Yes #define FVWM_VERSION 2.0 pl 1 #define OPTIONS SHAPE XPM Cpp #define FVWMDIR /local/homes/dsp/nation/modules FvwmCpp is the result of a random bit mutation on a hard disk, presumably a result of a cosmic‐ray or some such thing.