TBitmap32 extends TCustomBitmap32 with various methods and properties specific to the operating system's graphic subsystem. It provides methods for drawing on a device context (DC).
TBitmap32 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, TBitmap32 will automatically obtain support for new image file formats in design time and in run time.
TBitmap32 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).
| Methods | Properties | Events |
|---|---|---|
| In TBitmap32: | ||
| CanvasAllocated | BitmapHandle | OnHandleChanged |
| DeleteCanvas | BitmapInfo | |
| HandleChanged | Canvas | |
| LoadFromResourceID | Font | |
| LoadFromResourceName | Handle | |
| RenderText | Pixmap | |
| TextExtent | PixmapChanged | |
| TextHeight | ||
| TextOut | ||
| TextWidth | ||
| UpdateFont | ||
| In TCustomBitmap32: | ||
| BeginMeasuring | Backend | OnAreaChanged |
| Clear | Bits | OnPixelCombine |
| Create | Clipping | |
| Destroy | ClipRect | |
| Draw | CombineMode | |
| DrawTo | DrawMode | |
| Empty | MasterAlpha | |
| EndMeasuring | MeasuringMode | |
| FillRect | OuterColor | |
| FlipHorz | PenColor | |
| FlipVert | Pixel | |
| FrameRect | PixelPtr | |
| GetStippleColor | Resampler | |
| HorzLine | ResamplerClassName | |
| Line | ScanLine | |
| LineTo | StippleCounter | |
| LoadFromFile | StippleStep | |
| LoadFromStream | StretchFilter | |
| MoveTo | WrapMode | |
| RaiseRectTS | ||
| ResetAlpha | ||
| ResetClipRect | ||
| Roll | ||
| Rotate | ||
| SaveToFile | ||
| SaveToStream | ||
| SetPixel | ||
| SetSize | ||
| SetStipple | ||
| VertLine | ||
| In TCustomMap: | ||
| Delete | Height | OnResize |
| Resized | Width | |
| In TThreadPersistent: | ||
| Lock | LockCount | |
| Unlock | ||
| In TNotifiablePersistent: | ||
| BeginUpdate | UpdateCount | OnChange |
| Changed | ||
| EndUpdate | ||
Copyright ©2000-2024 Alex Denisov and the Graphics32 Team - Graphics32 2.0 - Help file built on 18 Feb 2024