> I'm trying to use WinPaintChars() to draw text with a transparent
> background (ie, only paint the text pixels, without getting a rectangle
> of the background color around the characters). This works perfectly
> on 3.5 devices, but in testing it on POSE with any of the 4.0 roms, I
> get a white background around the text, instead of the desired effect.
>
> Here's my code:
>
> // erase the text pixels
>
> WinSetTextColor( whiteIndex );
> WinSetBackColor( blackIndex );
> WinSetDrawMode( winErase );
try:
WinSetDrawMode( winMask );
> WinPaintChars( txt, len, x, y );
>
> // logical OR the text pixels with the desired color
>
> WinSetTextColor( textColor );
> WinSetBackColor( whiteIndex );
> WinSetDrawMode( winOverlay );
> WinPaintChars( txt, len, x, y );
>
> Where whiteIndex, blackIndex, textColor are all indexes into the current
> palette for the appropriate colors.
>
> Is this a bug in 4.0? Or am I missing something?
no bug :)
winMask = --> dst = src & !dst --> masking
winErase = --> dst = src & dst --> cropping
i think, the "Erase" word can be a bit confusion.. it really means
to crop (remove those pixels from dst that are NOT on in source)..
try winMask, and i bet you'll get the result you want.
// az
[EMAIL PROTECTED]
http://www.ardiri.com/ <--- free games!
--
For information on using the Palm Developer Forums, or to unsubscribe, please see
http://www.palmos.com/dev/tech/support/forums/
