vmpk man page

vmpk — Virtual MIDI Piano Keyboard


vmpk [Standard options...]


This manual page documents briefly the vmpk program.

This program has standard Qt programs options.

Virtual MIDI Piano Keyboard is a MIDI events generator and receiver. It doesn´t produce any sound by itself, but can be used to drive a MIDI synthesizer (either hardware or software, internal or external). You can use the computer´s keyboard to play MIDI notes, and also the mouse. You can use the Virtual MIDI Piano Keyboard to display the played MIDI notes from another instrument or MIDI file player.



sets the application GUI style. Possible values are motif, windows, and platinum. If you compiled Qt with additional styles or have additional styles as plugins these will be available to the -style command line option


sets the application styleSheet. The value must be a path to a file that contains the Style Sheet. Note: Relative URLs in the Style Sheet file are relative to the Style Sheet file´s path.


restores the application from an earlier session.


prints debug message at the end about number of widgets left undestroyed and maximum number of widgets existed at the same time


sets the application´s layout direction to Qt::RightToLeft


sets the backend to be used for on-screen widgets and QPixmaps. Available options are raster and opengl.

-display display

sets the X display (default is $DISPLAY).

-geometry geometry

sets the client geometry of the first window that is shown.

-fn|-font font

defines the application font. The font should be specified using an X logical font description.

-bg|-background color

sets the default background color and an application palette (light and dark shades are calculated).

-fg|-foreground color

sets the default foreground color.

-btn|-button color

sets the default button color.

-name name

sets the application name.

-title title

sets the application title.

-visual TrueColor

forces the application to use a TrueColor visual on an 8-bit display.

-ncols count

limits the number of colors allocated in the color cube on an 8-bit display, if the application is using the QApplication::ManyColor color specification. If count is 216 then a 6x6x6 color cube is used (i.e. 6 levels of red, 6 of green, and 6 of blue); for other values, a cube approximately proportional to a 2x3x1 cube is used.


causes the application to install a private color map on an 8-bit display.


sets the input method server (equivalent to setting the XMODIFIERS environment variable)


defines how the input is inserted into the given widget, e.g., onTheSpot makes the input appear directly in the widget, while overTheSpot makes the input appear in a box floating over the widget and is not inserted until the editing is done.


This manual page was written by Mehdi Dogguy <dogguy@pps.jussieu.fr> for the Debian GNU/Linux system (but may be used by others). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3 or any later version published by the Free Software Foundation; considering as source code all the file that enable the production of this manpage.


Mehdi Dogguy <dogguy@pps.jussieu.fr>


June 7, 2009 vmpk 0.3.3 User Commands