| [drawing_bitmap.h](drawing__bitmap_8h.md) | Declares functions related to the **bitmap** object in the drawing module. <br>File to Include: <native_drawing/drawing_bitmap.h> |
| [drawing_brush.h](drawing__brush_8h.md) | Declares functions related to the **brush** object in the drawing module. <br>File to Include: <native_drawing/drawing_brush.h> |
| [drawing_canvas.h](drawing__canvas_8h.md) | Declares functions related to the **canvas** object in the drawing module. <br>File to Include: <native_drawing/drawing_canvas.h> |
| [drawing_color.h](drawing__color_8h.md) | Declares functions related to the **color** object in the drawing module. <br>File to Include: <native_drawing/drawing_color.h> |
| [drawing_font_collection.h](drawing__font__collection_8h.md) | Declares functions related to **FontCollection** in the drawing module. <br>File to Include: <native_drawing/drawing_font_collection.h> |
| [drawing_path.h](drawing__path_8h.md) | Declares functions related to the **path** object in the drawing module. <br>File to Include: <native_drawing/drawing_path.h> |
| [drawing_pen.h](drawing__pen_8h.md) | Declares functions related to the **pen** object in the drawing module. <br>File to Include: <native_drawing/drawing_pen.h> |
| [drawing_text_declaration.h](drawing__text__declaration_8h.md) | Declares the data structure related to text in 2D drawing. <br>File to Include: <native_drawing/drawing_text_declaration.h> |
| [drawing_text_typography.h](drawing__text__typography_8h.md) | Declares functions related to **typography** in the drawing module. <br>File to Include: <native_drawing/drawing_text_typography.h> |
| [drawing_types.h](drawing__types_8h.md) | Declares the data types for drawing 2D graphics, including the canvas, brush, pen, bitmap, and path. <br>File to Include: <native_drawing/drawing_types.h> |
### Structs
| Name | Description |
| -------- | -------- |
| [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md) | Defines the pixel format of a bitmap, including the color type and alpha type. |
### Types
| Name | Description |
| -------- | -------- |
| [OH_Drawing_FontCollection](#oh_drawing_fontcollection) | Defines an **OH_Drawing_FontCollection**, which is used to load fonts. |
| [OH_Drawing_Typography](#oh_drawing_typography) | Defines an **OH_Drawing_Typography**, which is used to manage the typography layout and display. |
| [OH_Drawing_TextStyle](#oh_drawing_textstyle) | Defines an **OH_Drawing_TextStyle**, which is used to manage text colors and decorations. |
| [OH_Drawing_TypographyStyle](#oh_drawing_typographystyle) | Defines an **OH_Drawing_TypographyStyle**, which is used to manage the typography style, such as the text direction. |
| [OH_Drawing_TypographyCreate](#oh_drawing_typographycreate) | Defines an **OH_Drawing_TypographyCreate**, which is used to create an **OH_Drawing_Typography** object. |
| [OH_Drawing_Canvas](#oh_drawing_canvas) | Defines a rectangular canvas on which various shapes, images, and texts can be drawn by using the brush and pen. |
| [OH_Drawing_Pen](#oh_drawing_pen) | Defines a pen, which is used to describe the style and color to outline a shape. |
| [OH_Drawing_Brush](#oh_drawing_brush) | Defines as a brush, which is used to describe the style and color to fill in a shape. |
| [OH_Drawing_Path](#oh_drawing_path) | Defines a path, which is used to customize various shapes. |
| [OH_Drawing_Bitmap](#oh_drawing_bitmap) | Defines a bitmap, which is a memory that contains the pixel data of a shape. |
### Enums
| Name | Description |
| -------- | -------- |
| [OH_Drawing_PenLineCapStyle](#oh_drawing_penlinecapstyle) { LINE_FLAT_CAP, LINE_SQUARE_CAP, LINE_ROUND_CAP } | Enumerates line cap styles of a pen. The line cap style defines the style of both ends of a line segment drawn by the pen. |
| [OH_Drawing_PenLineJoinStyle](#oh_drawing_penlinejoinstyle) { LINE_MITER_JOIN, LINE_ROUND_JOIN, LINE_BEVEL_JOIN } | Enumerates pen line join styles. The line join style defines the shape of the joints of a polyline segment drawn by the pen. |
| [OH_Drawing_BitmapCreate](#oh_drawing_bitmapcreate)(void) | Creates an **OH_Drawing_Bitmap** object. |
| [OH_Drawing_BitmapDestroy](#oh_drawing_bitmapdestroy)([OH_Drawing_Bitmap](#oh_drawing_bitmap)\*) | Destroys an **OH_Drawing_Bitmap** object and reclaims the memory occupied by the object. |
| [OH_Drawing_BitmapBuild](#oh_drawing_bitmapbuild)([OH_Drawing_Bitmap](#oh_drawing_bitmap)\*, const uint32_t width, const uint32_t height, const [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md)\*) | Initializes the width and height of an **OH_Drawing_Bitmap** object and sets the pixel format for the bitmap. |
| [OH_Drawing_BitmapGetWidth](#oh_drawing_bitmapgetwidth)([OH_Drawing_Bitmap](#oh_drawing_bitmap)\*) | Obtains the width of a bitmap. |
| [OH_Drawing_BitmapGetHeight](#oh_drawing_bitmapgetheight)([OH_Drawing_Bitmap](#oh_drawing_bitmap)\*) | Obtains the height of a bitmap. |
| [OH_Drawing_BitmapGetPixels](#oh_drawing_bitmapgetpixels)([OH_Drawing_Bitmap](#oh_drawing_bitmap)\*) | Obtains the pixel address of a bitmap. You can use this address to obtain the pixel data of the bitmap. |
| [OH_Drawing_BrushCreate](#oh_drawing_brushcreate)(void) | Creates an **OH_Drawing_Brush** object. |
| [OH_Drawing_BrushDestroy](#oh_drawing_brushdestroy)([OH_Drawing_Brush](#oh_drawing_brush)\*) | Destroys an **OH_Drawing_Brush** object and reclaims the memory occupied by the object. |
| [OH_Drawing_BrushIsAntiAlias](#oh_drawing_brushisantialias)(const[OH_Drawing_Brush](#oh_drawing_brush) \*) | Checks whether anti-aliasing is enabled for a brush. If anti-aliasing is enabled, edges will be drawn with partial transparency. |
| [OH_Drawing_BrushSetAntiAlias](#oh_drawing_brushsetantialias)([OH_Drawing_Brush](#oh_drawing_brush)\*, bool) | Enables or disables anti-aliasing for a brush. If anti-aliasing is enabled, edges will be drawn with partial transparency. |
| [OH_Drawing_BrushGetColor](#oh_drawing_brushgetcolor)(const[OH_Drawing_Brush](#oh_drawing_brush) \*) | Obtains the color of a brush. The color is used by the brush to fill in a shape. |
| [OH_Drawing_BrushSetColor](#oh_drawing_brushsetcolor)([OH_Drawing_Brush](#oh_drawing_brush)\*, uint32_t color) | Sets the color for a brush. The color will be used by the brush to fill in a shape. |
| [OH_Drawing_CanvasCreate](#oh_drawing_canvascreate)(void) | Creates an **OH_Drawing_Canvas** object. |
| [OH_Drawing_CanvasDestroy](#oh_drawing_canvasdestroy)([OH_Drawing_Canvas](#oh_drawing_canvas)\*) | Destroys an **OH_Drawing_Canvas** object and reclaims the memory occupied by the object. |
| [OH_Drawing_CanvasBind](#oh_drawing_canvasbind)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, [OH_Drawing_Bitmap](#oh_drawing_bitmap)\*) | Binds a bitmap to a canvas so that the content drawn on the canvas is output to the bitmap (this process is called CPU rendering). |
| [OH_Drawing_CanvasAttachPen](#oh_drawing_canvasattachpen)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, const [OH_Drawing_Pen](#oh_drawing_pen)\*) | Attaches a pen to a canvas so that the canvas will use the style and color of the pen to outline a shape. |
| [OH_Drawing_CanvasDetachPen](#oh_drawing_canvasdetachpen)([OH_Drawing_Canvas](#oh_drawing_canvas)\*) | Detaches the pen from a canvas so that the canvas will not use the style and color of the pen to outline a shape. |
| [OH_Drawing_CanvasAttachBrush](#oh_drawing_canvasattachbrush)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, const [OH_Drawing_Brush](#oh_drawing_brush)\*) | Attaches a brush to a canvas so that the canvas will use the style and color of the brush to fill in a shape. |
| [OH_Drawing_CanvasDetachBrush](#oh_drawing_canvasdetachbrush)([OH_Drawing_Canvas](#oh_drawing_canvas)\*) | Detaches the brush from a canvas so that the canvas will not use the style and color of the brush to fill in a shape. |
| [OH_Drawing_CanvasSave](#oh_drawing_canvassave)([OH_Drawing_Canvas](#oh_drawing_canvas)\*) | Saves the current canvas status (canvas matrix) to the top of the stack. |
| [OH_Drawing_CanvasRestore](#oh_drawing_canvasrestore)([OH_Drawing_Canvas](#oh_drawing_canvas)\*) | Restores the canvas status (canvas matrix) saved on the top of the stack. |
| [OH_Drawing_CanvasDrawLine](#oh_drawing_canvasdrawline)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, float x1, float y1, float x2, float y2) | Draws a line segment. |
| [OH_Drawing_CanvasDrawPath](#oh_drawing_canvasdrawpath)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, const [OH_Drawing_Path](#oh_drawing_path)\*) | Draws a path. |
| [OH_Drawing_CanvasClear](#oh_drawing_canvasclear)([OH_Drawing_Canvas](#oh_drawing_canvas)\*, uint32_t color) | Clears a canvas by using a specified color. |
| [OH_Drawing_ColorSetArgb](#oh_drawing_colorsetargb)(uint32_t alpha, uint32_t red, uint32_t green, uint32_t blue) | Converts four variables (alpha, red, green, and blue) into a 32-bit (ARGB) variable that describes a color. |
| [OH_Drawing_CreateFontCollection](#oh_drawing_createfontcollection)(void) | Creates an **OH_Drawing_FontCollection** object. |
| [OH_Drawing_DestroyFontCollection](#oh_drawing_destroyfontcollection)([OH_Drawing_FontCollection](#oh_drawing_fontcollection)\*) | Releases the memory occupied by an **OH_Drawing_FontCollection** object. |
| [OH_Drawing_PathCreate](#oh_drawing_pathcreate)(void) | Creates an **OH_Drawing_Path** object. |
| [OH_Drawing_PathDestroy](#oh_drawing_pathdestroy)([OH_Drawing_Path](#oh_drawing_path)\*) | Destroys an **OH_Drawing_Path** object and reclaims the memory occupied by the object. |
| [OH_Drawing_PathMoveTo](#oh_drawing_pathmoveto)([OH_Drawing_Path](#oh_drawing_path)\*, float x, float y) | Sets the start point of a path. |
| [OH_Drawing_PathLineTo](#oh_drawing_pathlineto)([OH_Drawing_Path](#oh_drawing_path)\*, float x, float y) | Draws a line segment from the last point of a path to the target point. |
| [OH_Drawing_PathArcTo](#oh_drawing_patharcto)([OH_Drawing_Path](#oh_drawing_path)\*, float x1, float y1, float x2, float y2, float startDeg, float sweepDeg) | Draws an arc to a path. This is done by using angle arc mode. In this mode, a rectangle that encloses an ellipse is specified first, and then a start angle and a sweep angle are specified. The arc is a portion of the ellipse defined by the start angle and the sweep angle. By default, a line segment from the last point of the path to the start point of the arc is also added. |
| [OH_Drawing_PathQuadTo](#oh_drawing_pathquadto)([OH_Drawing_Path](#oh_drawing_path)\*, float ctrlX, float ctrlY, float endX, float endY) | Draws a quadratic Bezier curve from the last point of a path to the target point. |
| [OH_Drawing_PathCubicTo](#oh_drawing_pathcubicto)([OH_Drawing_Path](#oh_drawing_path)\*, float ctrlX1, float ctrlY1, float ctrlX2, float ctrlY2, float endX, float endY) | Draws a cubic Bezier curve from the last point of a path to the target point. |
| [OH_Drawing_PathClose](#oh_drawing_pathclose)([OH_Drawing_Path](#oh_drawing_path)\*) | Closes a path. A line segment from the start point to the last point of the path is added. |
| [OH_Drawing_PenCreate](#oh_drawing_pencreate)(void) | Creates an **OH_Drawing_Pen** object. |
| [OH_Drawing_PenDestroy](#oh_drawing_pendestroy)([OH_Drawing_Pen](#oh_drawing_pen)\*) | Destroys an **OH_Drawing_Pen** object and reclaims the memory occupied by the object. |
| [OH_Drawing_PenIsAntiAlias](#oh_drawing_penisantialias)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Checks whether anti-aliasing is enabled for a pen. If anti-aliasing is enabled, edges will be drawn with partial transparency. |
| [OH_Drawing_PenSetAntiAlias](#oh_drawing_pensetantialias)([OH_Drawing_Pen](#oh_drawing_pen)\*, bool) | Enables or disables anti-aliasing for a pen. If anti-aliasing is enabled, edges will be drawn with partial transparency. |
| [OH_Drawing_PenGetColor](#oh_drawing_pengetcolor)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Obtains the color of a pen. The color is used by the pen to outline a shape. |
| [OH_Drawing_PenSetColor](#oh_drawing_pensetcolor)([OH_Drawing_Pen](#oh_drawing_pen)\*, uint32_t color) | Sets the color for a pen. The color is used by the pen to outline a shape. |
| [OH_Drawing_PenGetWidth](#oh_drawing_pengetwidth)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Obtains the thickness of a pen. This thickness determines the width of the outline of a shape. |
| [OH_Drawing_PenSetWidth](#oh_drawing_pensetwidth)([OH_Drawing_Pen](#oh_drawing_pen)\*, float width) | Sets the thickness for a pen. This thickness determines the width of the outline of a shape. |
| [OH_Drawing_PenGetMiterLimit](#oh_drawing_pengetmiterlimit)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Obtains the stroke miter limit of a polyline drawn by a pen. When the corner type is bevel, a beveled corner is displayed if the miter limit is exceeded, and a mitered corner is displayed if the miter limit is not exceeded. |
| [OH_Drawing_PenSetMiterLimit](#oh_drawing_pensetmiterlimit)([OH_Drawing_Pen](#oh_drawing_pen)\*, float miter) | Sets the stroke miter limit for a polyline drawn by a pen. When the corner type is bevel, a beveled corner is displayed if the miter limit is exceeded, and a mitered corner is displayed if the miter limit is not exceeded. |
| [OH_Drawing_PenGetCap](#oh_drawing_pengetcap)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Obtains the line cap style of a pen. |
| [OH_Drawing_PenSetCap](#oh_drawing_pensetcap)([OH_Drawing_Pen](#oh_drawing_pen)\*, [OH_Drawing_PenLineCapStyle](#oh_drawing_penlinecapstyle)) | Sets the line cap style for a pen. |
| [OH_Drawing_PenGetJoin](#oh_drawing_pengetjoin)(const[OH_Drawing_Pen](#oh_drawing_pen) \*) | Obtains the line join style of a pen. |
| [OH_Drawing_PenSetJoin](#oh_drawing_pensetjoin)([OH_Drawing_Pen](#oh_drawing_pen)\*, [OH_Drawing_PenLineJoinStyle](#oh_drawing_penlinejoinstyle)) | Sets the line join style for a pen. |
| [OH_Drawing_CreateTypographyStyle](#oh_drawing_createtypographystyle)(void) | Creates an **OH_Drawing_TypographyStyle** object. |
| [OH_Drawing_DestroyTypographyStyle](#oh_drawing_destroytypographystyle)([OH_Drawing_TypographyStyle](#oh_drawing_typographystyle)\*) | Releases the memory occupied by an **OH_Drawing_TypographyStyle** object. |
| [OH_Drawing_SetTypographyTextDirection](#oh_drawing_settypographytextdirection)([OH_Drawing_TypographyStyle](#oh_drawing_typographystyle)\*, int) | Sets the text direction. |
| [OH_Drawing_SetTypographyTextAlign](#oh_drawing_settypographytextalign)([OH_Drawing_TypographyStyle](#oh_drawing_typographystyle)\*, int) | Sets the text alignment mode. |
| [OH_Drawing_SetTypographyTextMaxLines](#oh_drawing_settypographytextmaxlines)([OH_Drawing_TypographyStyle](#oh_drawing_typographystyle)\*, int) | Sets the maximum number of lines in a text file. |
| [OH_Drawing_CreateTextStyle](#oh_drawing_createtextstyle)(void) | Creates an **OH_Drawing_TextStyle** object. |
| [OH_Drawing_DestroyTextStyle](#oh_drawing_destroytextstyle)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*) | Releases the memory occupied by an **OH_Drawing_TextStyle** object. |
| [OH_Drawing_SetTextStyleColor](#oh_drawing_settextstylecolor)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, uint32_t) | Sets the text color. |
| [OH_Drawing_SetTextStyleFontSize](#oh_drawing_settextstylefontsize)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, double) | Sets the font size. |
| [OH_Drawing_SetTextStyleFontWeight](#oh_drawing_settextstylefontweight)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, int) | Sets the font weight. |
| [OH_Drawing_SetTextStyleBaseLine](#oh_drawing_settextstylebaseline)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, int) | Sets the text baseline. |
| [OH_Drawing_SetTextStyleDecoration](#oh_drawing_settextstyledecoration)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, int) | Sets the text decoration. |
| [OH_Drawing_SetTextStyleDecorationColor](#oh_drawing_settextstyledecorationcolor)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, uint32_t) | Sets the color for the text decoration. |
| [OH_Drawing_SetTextStyleFontHeight](#oh_drawing_settextstylefontheight)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, double) | Sets the font height. |
| [OH_Drawing_SetTextStyleFontFamilies](#oh_drawing_settextstylefontfamilies)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, int, const char \*fontFamilies[]) | Sets the font families. |
| [OH_Drawing_SetTextStyleFontStyle](#oh_drawing_settextstylefontstyle)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, int) | Sets the font style. |
| [OH_Drawing_SetTextStyleLocale](#oh_drawing_settextstylelocale)([OH_Drawing_TextStyle](#oh_drawing_textstyle)\*, const char \*) | Sets the locale. |
| [OH_Drawing_CreateTypographyHandler](#oh_drawing_createtypographyhandler)([OH_Drawing_TypographyStyle](#oh_drawing_typographystyle)\*, [OH_Drawing_FontCollection](#oh_drawing_fontcollection)\*) | Creates a pointer to an **OH_Drawing_TypographyCreate** object. |
| [OH_Drawing_DestroyTypographyHandler](#oh_drawing_destroytypographyhandler)([OH_Drawing_TypographyCreate](#oh_drawing_typographycreate)\*) | Releases the memory occupied by an **OH_Drawing_TypographyCreate** object. |
| [OH_Drawing_TypographyHandlerPushTextStyle](#oh_drawing_typographyhandlerpushtextstyle)([OH_Drawing_TypographyCreate](#oh_drawing_typographycreate)\*, [OH_Drawing_TextStyle](#oh_drawing_textstyle)\*) | Sets the text style. |
| [OH_Drawing_TypographyHandlerAddText](#oh_drawing_typographyhandleraddtext)([OH_Drawing_TypographyCreate](#oh_drawing_typographycreate)\*, const char \*) | Sets the text content. |
| [OH_Drawing_TypographyHandlerPopTextStyle](#oh_drawing_typographyhandlerpoptextstyle)([OH_Drawing_TypographyCreate](#oh_drawing_typographycreate)\*) | Removes the topmost style in the stack, leaving the remaining styles in effect. |
| [OH_Drawing_CreateTypography](#oh_drawing_createtypography)([OH_Drawing_TypographyCreate](#oh_drawing_typographycreate)\*) | Creates an **OH_Drawing_Typography** object. |
| [OH_Drawing_DestroyTypography](#oh_drawing_destroytypography)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Releases the memory occupied by an **OH_Drawing_Typography** object. |
| [OH_Drawing_TypographyLayout](#oh_drawing_typographylayout)([OH_Drawing_Typography](#oh_drawing_typography)\*, double) | Lays out the typography. |
| [OH_Drawing_TypographyPaint](#oh_drawing_typographypaint)([OH_Drawing_Typography](#oh_drawing_typography)\*, [OH_Drawing_Canvas](#oh_drawing_canvas)\*, double, double) | Paints text on the canvas. |
| [OH_Drawing_TypographyGetMaxWidth](#oh_drawing_typographygetmaxwidth)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the maximum width. |
| [OH_Drawing_TypographyGetHeight](#oh_drawing_typographygetheight)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the height. |
| [OH_Drawing_TypographyGetLongestLine](#oh_drawing_typographygetlongestline)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the longest line. |
| [OH_Drawing_TypographyGetMinIntrinsicWidth](#oh_drawing_typographygetminintrinsicwidth)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the minimum intrinsic width. |
| [OH_Drawing_TypographyGetMaxIntrinsicWidth](#oh_drawing_typographygetmaxintrinsicwidth)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the maximum intrinsic width. |
| [OH_Drawing_TypographyGetAlphabeticBaseline](#oh_drawing_typographygetalphabeticbaseline)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the alphabetic baseline. |
| [OH_Drawing_TypographyGetIdeographicBaseline](#oh_drawing_typographygetideographicbaseline)([OH_Drawing_Typography](#oh_drawing_typography)\*) | Obtains the ideographic baseline. |
## Type Description
### OH_Drawing_Bitmap
```
typedef struct OH_Drawing_BitmapOH_Drawing_Bitmap
```
**Description**<br>
Defines a bitmap, which is a memory that contains the pixel data of a shape.
### OH_Drawing_Brush
```
typedef struct OH_Drawing_BrushOH_Drawing_Brush
```
**Description**<br>
Defines as a brush, which is used to describe the style and color to fill in a shape.
### OH_Drawing_Canvas
```
typedef struct OH_Drawing_CanvasOH_Drawing_Canvas
```
**Description**<br>
Defines a rectangular canvas on which various shapes, images, and texts can be drawn by using the brush and pen.
Defines an **OH_Drawing_TypographyStyle**, which is used to manage the typography style, such as the text direction.
## Enum Description
### OH_Drawing_AlphaFormat
```
enum OH_Drawing_AlphaFormat
```
**Description**<br>
Enumerates alpha formats of bitmap pixels.
| Name | Description |
| -------- | -------- |
| ALPHA_FORMAT_UNKNOWN | Unknown format. |
| ALPHA_FORMAT_OPAQUE | The bitmap does not have the alpha component. |
| ALPHA_FORMAT_PREMUL | The color component of each pixel is premultiplied by the alpha component. |
| ALPHA_FORMAT_UNPREMUL | The color component of each pixel is not premultiplied by the alpha component. |
### OH_Drawing_ColorFormat
```
enum OH_Drawing_ColorFormat
```
**Description**<br>
Enumerates storage formats of bitmap pixels.
| Name | Description |
| -------- | -------- |
| COLOR_FORMAT_UNKNOWN | Unknown format. |
| COLOR_FORMAT_ALPHA_8 | Each pixel is represented by 8 bits, which together indicate alpha. |
| COLOR_FORMAT_RGB_565 | Each pixel is represented by 16 bits. From the most significant bit to the least significant bit, the first 5 bits indicate red, the subsequent 6 bits indicate green, and the last 5 bits indicate blue. |
| COLOR_FORMAT_ARGB_4444 | Each pixel is represented by 16 bits. From the most significant bit to the least significant bit, every 4 bits indicate alpha, red, green, and blue, respectively. |
| COLOR_FORMAT_RGBA_8888 | Each pixel is represented by 32 bits. From the most significant bit to the least significant bit, every 8 bits indicate alpha, red, green, and blue, respectively. |
| COLOR_FORMAT_BGRA_8888 | Each pixel is represented by 32 bits. From the most significant bit to the least significant bit, every 8 bits indicate blue, green, red, and alpha, respectively. |
### OH_Drawing_FontStyle
```
enum OH_Drawing_FontStyle
```
**Description**<br>
Enumerates font styles.
| Name | Description |
| -------- | -------- |
| FONT_STYLE_NORMAL | Normal style |
| FONT_STYLE_ITALIC | Italic style |
### OH_Drawing_FontWeight
```
enum OH_Drawing_FontWeight
```
**Description**<br>
Enumerates font weights.
| Name | Description |
| -------- | -------- |
| FONT_WEIGHT_100 | Thin |
| FONT_WEIGHT_200 | Extra-light |
| FONT_WEIGHT_300 | Light |
| FONT_WEIGHT_400 | Normal/Regular |
| FONT_WEIGHT_500 | Medium |
| FONT_WEIGHT_600 | Semi-bold |
| FONT_WEIGHT_700 | Bold |
| FONT_WEIGHT_800 | Extra-bold |
| FONT_WEIGHT_900 | Black |
### OH_Drawing_PenLineCapStyle
```
enum OH_Drawing_PenLineCapStyle
```
**Description**<br>
Enumerates line cap styles of a pen. The line cap style defines the style of both ends of a line segment drawn by the pen.
| Name | Description |
| -------- | -------- |
| LINE_FLAT_CAP | There is no cap style. Both ends of the line segment are cut off square. |
| LINE_SQUARE_CAP | Square cap style. Both ends have a square, the height of which is half of the width of the line segment, with the same width. |
| LINE_ROUND_CAP | Round cap style. Both ends have a semicircle centered, the diameter of which is the same as the width of the line segment. |
### OH_Drawing_PenLineJoinStyle
```
enum OH_Drawing_PenLineJoinStyle
```
**Description**<br>
Enumerates pen line join styles. The line join style defines the shape of the joints of a polyline segment drawn by the pen.
| Name | Description |
| -------- | -------- |
| LINE_MITER_JOIN | Mitered corner. If the angle of a polyline is small, its miter length may be inappropriate. In this case, you need to use the miter limit to limit the miter length. |
| LINE_ROUND_JOIN | Round corner. |
| LINE_BEVEL_JOIN | Beveled corner. |
### OH_Drawing_TextAlign
```
enum OH_Drawing_TextAlign
```
**Description**<br>
Enumerates text alignment modes.
| Name | Description |
| -------- | -------- |
| TEXT_ALIGN_LEFT | Left-aligned |
| TEXT_ALIGN_RIGHT | Right-aligned |
| TEXT_ALIGN_CENTER | Center-aligned |
| TEXT_ALIGN_JUSTIFY | Justified, which means that each line (except the last line) is stretched so that every line has equal width, and the left and right margins are straight. |
| TEXT_ALIGN_START | **TEXT_ALIGN_START** achieves the same effect as **TEXT_ALIGN_LEFT** when **OH_Drawing_TextDirection** is **TEXT_DIRECTION_LTR**; it achieves the same effect as **TEXT_ALIGN_RIGHT** when **OH_Drawing_TextDirection** is **TEXT_DIRECTION_RTL**. |
| TEXT_ALIGN_END | **TEXT_ALIGN_END** achieves the same effect as **TEXT_ALIGN_RIGHT** when **OH_Drawing_TextDirection** is **TEXT_DIRECTION_LTR**; it achieves the same effect as **TEXT_ALIGN_LEFT** when **OH_Drawing_TextDirection** is **TEXT_DIRECTION_RTL**. |
### OH_Drawing_TextBaseline
```
enum OH_Drawing_TextBaseline
```
**Description**<br>
Enumerates text baselines.
| Name | Description |
| -------- | -------- |
| TEXT_BASELINE_ALPHABETIC | Alphabetic, where the letters in alphabets like English sit on. |
| TEXT_BASELINE_IDEOGRAPHIC | Ideographic. The baseline is at the bottom of the text area. |
### OH_Drawing_TextDecoration
```
enum OH_Drawing_TextDecoration
```
**Description**<br>
Enumerates text decorations.
| Name | Description |
| -------- | -------- |
| TEXT_DECORATION_NONE | No decoration. |
| TEXT_DECORATION_UNDERLINE | A underline is used for decoration. |
| TEXT_DECORATION_OVERLINE | An overline is used for decoration. |
| TEXT_DECORATION_LINE_THROUGH | A strikethrough is used for decoration. |
| OH_Drawing_Bitmap | Indicates the pointer to an **OH_Drawing_Bitmap** object. |
| width | Indicates the width of the bitmap to be initialized. |
| height | Indicates the height of the bitmap to be initialized. |
| [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md) | Indicates the pixel format of the bitmap to be initialized, including the pixel color type and alpha type. |
Draws an arc to a path. This is done by using angle arc mode. In this mode, a rectangle that encloses an ellipse is specified first, and then a start angle and a sweep angle are specified. The arc is a portion of the ellipse defined by the start angle and the sweep angle. By default, a line segment from the last point of the path to the start point of the arc is also added.
Obtains the stroke miter limit of a polyline drawn by a pen. When the corner type is bevel, a beveled corner is displayed if the miter limit is exceeded, and a mitered corner is displayed if the miter limit is not exceeded.
Sets the stroke miter limit for a polyline drawn by a pen. When the corner type is bevel, a beveled corner is displayed if the miter limit is exceeded, and a mitered corner is displayed if the miter limit is not exceeded.
