> If I recall correctly, there were small forks in the viewer to handle both color
>APIs to return
> the palette back to normal after drawing the page, but the details are starting to
>get a bit
> fuzzy in my mind.
Looking at document.c, this is the save/restore of a page before and after a draw,
which seems
to no longer work on the 3.0-3.3 fork.
/* Save the device's colors before drawing, so can later restore
to original when done drawing record */
static void SaveDrawState (void)
{
RGBColorType rgb;
/* OS 3.5 or greater. Use the good API's */
if ( sysMakeROMVersion( 3, 5, 0, sysROMStageRelease, 0 ) <= GetOSVersion() )
WinPushDrawState();
/* OS 3.0-3.3. Store the draw state as a private deviceForeColors variable
in document.c before rendering page */
else {
WinSetColors( 0, &rgb, 0, 0 );
deviceForeColors = rgb;
}
} /* Restore the device's colors after done drawing record */
static void RestoreDrawState (void)
{
/* OS 3.5 or greater. Use the good API's */
if ( sysMakeROMVersion( 3, 5, 0, sysROMStageRelease, 0 ) <= GetOSVersion() )
WinPopDrawState();
/* OS 3.0-3.3. Restore the draw state from deviceForeColors variable */
else
WinSetColors( &deviceForeColors, 0, 0, 0 );
}
Best wishes,
Robert
