Winbackground - Texas Instruments TI-89 Developer's Manual

Appendix A: System Routines — Windows

WinBackground

Declaration: void WinBackground (WINDOW * w , BYTE Attr )
Category(ies): Windows
Description: Change the current default attribute for the background of a window. The
background is used when the window is cleared or scrolled (explicitly with
WinScrollH or WinScrollV or implicitly when WF_TTY is set in the
WinOpen and the screen is scrolled).
Inputs: w
Attr — The valid values are and the result of all of the pixels are:
Outputs: None
Assumptions: The default background is A_REVERSE (clear).
Side Effects: Sets the background attribute for the window until changed.
Availability: All versions of the TI-89 / TI-92 Plus.
TI-89 / TI-92 Plus
Differences: None
See Also: WinClr, WinScrollH, WinScrollV
Example:
WinBackground( &Win, A_NORMAL );
WinClr( &Win );
WinBackground( &win, A_REVERSE ); /* back to normal */
TI-89 / TI-92 Plus Developer Guide
— WINDOW struct of a previously opened window.
A_NORMAL
A_REVERSE
A_XOR
/* Window background is now solid */
Not for Distribution
Turned on.
Turned off (cleared).
Pixels already in the window are flipped.
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Beta Version January 26, 2001