Access to Frame Parameters
--------------------------
These functions let you read and change the parameter values of a
frame.
- Function: frame-parameter frame parameter
This function returns the value of the parameter named PARAMETER
of FRAME. If FRAME is `nil', it returns the selected frame's
parameter.
- Function: frame-parameters frame
The function `frame-parameters' returns an alist listing all the
parameters of FRAME and their values.
- Function: modify-frame-parameters frame alist
This function alters the parameters of frame FRAME based on the
elements of ALIST. Each element of ALIST has the form `(PARM .
VALUE)', where PARM is a symbol naming a parameter. If you don't
mention a parameter in ALIST, its value doesn't change.