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The Photon graphics functions build a buffer of draw commands. The application sends these commands to the Photon Manager, which in turn sends them to the graphics driver. The graphics driver then renders the commands on the screen.
Photon supports a set of simple, dual-purpose draw primitives that you can stroke (that is, draw as an outline) or fill, or both. These primitives include arcs, ellipses, polygons, rectangles, and rounded rectangles.
| Entry | Description |
|---|---|
| PgBackgroundShadings() | Calculate top and bottom shading colors |
| PgBlueValue() | Extract the blue component from a composite color value |
| PgClearDrawBuffer() | Reset the current draw buffer |
| PgClearTranslation() | Restore the current translation to the default |
| PgCMY() | Convert cyan, magenta, and yellow values to composite color format |
| PgColor_t | composite color value |
| PgColorHSV_t | Hue-Saturation-Value color value |
| PgColorMatch() | Query for best color matches |
| PgCreateGC() | Allocate a graphics context |
| PgDefaultFill() | Reset fill attribute to its default value |
| PgDefaultGC() | Reset all graphics context attributes to their default system values |
| PgDefaultMode() | Reset draw mode and plane mask to their default values |
| PgDefaultStroke() | Reset stroke attribute to its system default |
| PgDefaultText() | Reset text attribute to its system default |
| PgDestroyGC() | Release resources of a graphics context |
| PgDrawArc() | Draw an arc, pie, or chord |
| PgDrawBevelBox() | Draw a beveled box using predetermined values |
| PgDrawBeveled() | Draw a beveled rectangle or arrow |
| PgDrawBezier() | Draw a stroked and/or filled Bézier curve |
| PgDrawBeziermx() | Draw a Bézier curve after the draw buffer has been flushed |
| PgDrawBitmap() | Draw a bitmap |
| PgDrawBitmapmx() | Draw a bitmap after the draw buffer has been flushed |
| PgDrawEllipse() | Draw an ellipse |
| PgDrawGrid() | Draw a grid |
| PgDrawIBevelBox() | Draw a beveled box from specified values |
| PgDrawILine() | Draw a single line from specified values |
| PgDrawImage() | Draw an image |
| PgDrawImagemx() | Draw an image (or pass a shared memory reference) after the draw buffer has been flushed |
| PgDrawIPixel() | Draw a single point |
| PgDrawIRect() | Draw a rectangle from specified values |
| PgDrawLine() | Draw a single line using predetermined values |
| PgDrawPhImagemx() | Draw an image that's contained in a PhImage_t structure |
| PgDrawPixel() | Draw a single point |
| PgDrawPixelArray() | Draw multiple points |
| PgDrawPixelArraymx() | Draw multiple points after the draw buffer has been flushed |
| PgDrawPolygon() | Draw a stroked and/or filled polygon |
| PgDrawPolygonmx() | Draw a stroked and/or filled polygon after the draw buffer has been flushed |
| PgDrawRect() | Draw a rectangle using predetermined values |
| PgDrawRepBitmap() | Draw a bitmap several times |
| PgDrawRepBitmapmx() | Draw a bitmap several times after the draw buffer has been flushed |
| PgDrawRepImage() | Draw an image several times |
| PgDrawRepImagemx() | Draw an image several times after the draw buffer has been flushed |
| PgDrawRoundRect() | Draw a rounded rectangle |
| PgDrawSpan() | Draw a list of spans |
| PgDrawSpanmx() | Draw a list of spans after the draw buffer has been flushed |
| PgDrawString() | Draw a string of characters |
| PgDrawStringmx() | Draw a string of characters after the draw buffer has been flushed |
| PgDrawText() | Draw text |
| PgDrawTextArea() | Draw text within an area |
| PgDrawTextChars() | Draw the specified number of text characters |
| PgDrawTextmx() | Draw text after the draw buffer has been flushed |
| PgDrawTImage() | Draw an image with a transparency mask |
| PgDrawTImagemx() | Draw an image with a transparency mask after the draw buffer has been flushed |
| PgDrawTrend() | Draw a trend graph |
| PgDrawTrendmx() | Draw a trend graph after the draw buffer has been flushed |
| PgExtentText() | Calculate the extent of a string of text |
| PgFFlush() | Explicitly flush the current draw buffer for the specified type of draw event |
| PgFlush() | Explicitly flush the current draw buffer |
| PgGetGC() | Get current graphics context |
| PgGetPalette() | Query for current color palette |
| PgGray() | Generate a shade of gray |
| PgGrayValue() | Extract color brightness |
| PgGreenValue() | Extract the green component from a composite color value |
| PgHSV() | Convert hue, saturation, and value to composite color format |
| PgHSV2RGB() | Convert HSV colors to RGB |
| PgRedValue() | Extract the red component from a composite color value |
| PgRGB() | Convert red, green, and blue values to composite color format |
| PgRGB2HSV() | Convert RGB colors to HSV |
| PgSetClipping() | Limit the extent of drawing |
| PgSetDrawBufferSize() | Resize a draw buffer |
| PgSetDrawMode() | Set draw mode |
| PgSetFillColor() | Set the color of subsequent fills |
| PgSetFillDither() | Apply a color pattern to fills |
| PgSetFillTransPat() | Use a masking pattern to set draw transparency on fills |
| PgSetFillXORColor() | Use the XOR of a color to draw fills |
| PgSetFont() | Set text font |
| PgSetGC() | Set current graphics context |
| PgSetMultiClip() | Set a list of rectangles to clip drawing |
| PgSetPalette() | Set the color palette |
| PgSetPlaneMask() | Protect video memory from being modified |
| PgSetRegion() | Determine which region will emit draw events |
| PgSetStrokeCap() | Set what the ends of lines look like |
| PgSetStrokeColor() | Set the color of subsequent outlines |
| PgSetStrokeDash() | Set dashed lines |
| PgSetStrokeDither() | Set stroke dither pattern |
| PgSetStrokeFWidth() | Set line thickness using a multiplier |
| PgSetStrokeJoin() | Set how lines are joined |
| PgSetStrokeTransPat() | Use a masking pattern to set draw transparency on outlines |
| PgSetStrokeWidth() | Set line thickness to the specified value |
| PgSetStrokeXORColor() | Use the XOR of a color to draw outlines |
| PgSetTextColor() | Set the color of subsequent text and bitmaps |
| PgSetTextDither() | Apply a color pattern to text and bitmaps |
| PgSetTextTransPat() | Use a masking pattern to set draw transparency on text and bitmaps |
| PgSetTextXORColor() | Use the XOR of a color to draw text and bitmaps |
| PgSetTranslation() | Translate draw commands horizontally and vertically |
| PgSetUnderline() | Set colors for underlining text |
| PgSetUserClip() | Set the user-clipping rectangle relative to the current translation |
| PgSetUserClipAbsolute() | Set the user-clipping rectangle independent of the current translation |
| PgShmemAttach() | Record a shared memory reference |
| PgShmemCleanup() | Remove shared memory references |
| PgShmemCreate() | Create a block of shared memory |
| PgShmemDestroy() | Remove a block of shared memory |
| PgShmemDetach() | Remove a shared memory reference |
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