Important: The information in this document is obsolete and should not be used for new development.
Copying Images
QuickDraw provides three procedures for copying portions of bitmaps from one graphics port or offscreen graphics world into another graphics port. TheCopyBits
procedure allows you to copy using source modes and to clip and resize during the copy operation. TheCopyMask
procedure allows you to mask areas where you want the copy operation to occur. These procedures also allow you to use pixel maps instead of bitmaps when your application runs on systems supporting Color QuickDraw.The
CopyDeepMask
procedure, which is available to basic QuickDraw only in System 7, combines the functionality of bothCopyBits
andCopyMask
.
Subtopics
- CopyBits
- CopyMask
- CopyDeepMask