JCL Help:TJclBitmap32
JCL Help: TJclBitmap32 Class
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TJclThreadPersistent
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TJclCustomMap
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TJclBitmap32
Summary
32 bit color depth bitmap class.
Pascal
public TJclBitmap32 = class(TJclCustomMap);
Description
TJclBitmap32 manages a single 32-bit device-independent bitmap (DIB) and provides methods for drawing on it and combining it with other DIBs or other objects with device context (DC).
TJclBitmap32 overrides Assign and AssignTo methods (inherited from TPersistent) to provide compatibility with standard objects: TBitmap, TPicture and TClipboard in both directions. The design-time streaming to and from *.dfm files, inherited from TPersistent, is supported, but its realization is different from streaming with other stream types (See the source code for details).
TJclBitmap32 does not implement its own low-level streaming or low-level file loading/saving. Instead, it uses streaming methods of temporal TBitmap or TPicture objects. This is an obvious performance penalty, however such approach allows using third-party libraries, which extend TGraphic class for various image formats support (JPEG, TGA, TIFF, GIF, PNG, etc.). When you install them, TJclBitmap32 will automatically obtain support for new image file formats in design time and in run time.
Since TJclBitmap32 is a descendant of TJclThreadPersistent, it inherits its locking mechanism and it may be used in multi-threaded applications. Category Graphics
About
Unit
Donator
Alex Denissov
Platforms
VCL
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