In Win32 there is the following function:

int SetBkMode(
  HDC hdc,      // handle of device context
  int iBkMode   // flag specifying background mode
);

Parameters:
hdc - Handle to the device context.
iBkMode - Specifies the background mode.

This parameter can be either of the following values:

OPAQUE - Background is filled with the current background color before the
text, hatched brush, or                         pen is drawn.
TRANSPARENT - Background remains untouched.

    Is there anything similar in X11? Maybe in the GC - XGCValues functions?
Which of the functions could apply to TRANSPARENT/OPAQUE?


Daniel Secrieru,
LFC Project Manager
http://www.lfc2.net/

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