Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 545)

Drawing and Graphics

Using the Drawing Interface 13-19

Figure 13-10 Example of ViewIntoBitmap method

Rotating or Flipping a Bitmap 13

Use the MungeBitmap function (page 10-22) to perform various bitmap operations

such as rotating or ﬂipping the bitmap. These operations are destructive to the bitmap

passed as an argument to this function; the bitmap is modiﬁed in place and the

modiﬁed bitmap shape is returned. Figure 13-11 illustrates how the MungeBitmap

function works. See “Using Bitmaps” (page 13-17) for a code example.

Figure 13-11 Example of MungeBitmap method

destBitmap destRect

view to capture

after calling

MungeBitmap (myBitmap, 'rotateLeft);

Pas de commentaire

Apple Newton Utilities Guide de l'utilisateur Page 545