1e41f4b71Sopenharmony_ci# drawing_bitmap.h 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci## Overview 5e41f4b71Sopenharmony_ci 6e41f4b71Sopenharmony_ciThe **drawing_bitmap.h** declares the functions related to the bitmap in the drawing module. 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci**File to include**: <native_drawing/drawing_bitmap.h> 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ci**Library**: libnative_drawing.so 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ci**Since**: 8 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci**Related module**: [Drawing](_drawing.md) 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci 17e41f4b71Sopenharmony_ci## Summary 18e41f4b71Sopenharmony_ci 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci### Structs 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci| Name| Description| 23e41f4b71Sopenharmony_ci| -------- | -------- | 24e41f4b71Sopenharmony_ci| struct [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md) | Describes the pixel format of a bitmap, including the color type and alpha type.| 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci 27e41f4b71Sopenharmony_ci### Types 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci| Name| Description| 30e41f4b71Sopenharmony_ci| -------- | -------- | 31e41f4b71Sopenharmony_ci| typedef struct [OH_Drawing_BitmapFormat](_o_h___drawing___bitmap_format.md) [OH_Drawing_BitmapFormat](_drawing.md#oh_drawing_bitmapformat) | Defines a struct that describes the pixel format of a bitmap, including the color type and alpha type.| 32e41f4b71Sopenharmony_ci 33e41f4b71Sopenharmony_ci 34e41f4b71Sopenharmony_ci### Functions 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_ci| Name| Description| 37e41f4b71Sopenharmony_ci| -------- | -------- | 38e41f4b71Sopenharmony_ci| [OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \* [OH_Drawing_BitmapCreate](_drawing.md#oh_drawing_bitmapcreate) (void) | Creates an **OH_Drawing_Bitmap** object.| 39e41f4b71Sopenharmony_ci| void [OH_Drawing_BitmapDestroy](_drawing.md#oh_drawing_bitmapdestroy) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Destroys an **OH_Drawing_Bitmap** object and reclaims the memory occupied by the object.| 40e41f4b71Sopenharmony_ci| [OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \* [OH_Drawing_BitmapCreateFromPixels](_drawing.md#oh_drawing_bitmapcreatefrompixels) ([OH_Drawing_Image_Info](_o_h___drawing___image___info.md) \*, void \*pixels, uint32_t rowBytes) | Creates an **OH_Drawing_Bitmap** object, with the address of the memory for storing the bitmap pixels set to the memory address that you applied for.| 41e41f4b71Sopenharmony_ci| void [OH_Drawing_BitmapBuild](_drawing.md#oh_drawing_bitmapbuild) ([OH_Drawing_Bitmap](_drawing.md#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 a bitmap and sets the pixel format for the bitmap.| 42e41f4b71Sopenharmony_ci| uint32_t [OH_Drawing_BitmapGetWidth](_drawing.md#oh_drawing_bitmapgetwidth) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Obtains the width of a bitmap.| 43e41f4b71Sopenharmony_ci| uint32_t [OH_Drawing_BitmapGetHeight](_drawing.md#oh_drawing_bitmapgetheight) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Obtains the height of a bitmap.| 44e41f4b71Sopenharmony_ci| [OH_Drawing_ColorFormat](_drawing.md#oh_drawing_colorformat) [OH_Drawing_BitmapGetColorFormat](_drawing.md#oh_drawing_bitmapgetcolorformat) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Obtains the pixel format of a bitmap.| 45e41f4b71Sopenharmony_ci| [OH_Drawing_AlphaFormat](_drawing.md#oh_drawing_alphaformat) [OH_Drawing_BitmapGetAlphaFormat](_drawing.md#oh_drawing_bitmapgetalphaformat) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Obtains the alpha component of a bitmap.| 46e41f4b71Sopenharmony_ci| void \* [OH_Drawing_BitmapGetPixels](_drawing.md#oh_drawing_bitmapgetpixels) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*) | Obtains the pixel address of a bitmap. You can use this address to obtain the pixel data of the bitmap.| 47e41f4b71Sopenharmony_ci| void [OH_Drawing_BitmapGetImageInfo](_drawing.md#oh_drawing_bitmapgetimageinfo) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*, [OH_Drawing_Image_Info](_o_h___drawing___image___info.md) \*) | Obtains the image information of a bitmap.| 48e41f4b71Sopenharmony_ci| bool [OH_Drawing_BitmapReadPixels](_drawing.md#oh_drawing_bitmapreadpixels) ([OH_Drawing_Bitmap](_drawing.md#oh_drawing_bitmap) \*, const [OH_Drawing_Image_Info](_o_h___drawing___image___info.md) \*dstInfo, void \*dstPixels, size_t dstRowBytes, int32_t srcX, int32_t srcY) | Reads pixels of the rectangle in a bitmap to the specified buffer.| 49