---
title: "Bitmap Members"
canonical: https://www.graphicsmill.com/docs/gm5/AllMembers_T_Aurigma_GraphicsMill_Bitmap.htm
product: "Graphics Mill 5.5 for .NET"
---
This documentation is for the old version. [Go to the latest Graphics Mill docs](https://www.graphicsmill.com/docs/gm/)
# Bitmap Members
The [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) type exposes the following members.
## Constructors
| | Name | Description |
| --- | --- | --- |
|  | [Bitmap](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_ctor.htm.md) | Overloaded.
Creates empty [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) instance. |
## Methods
| | Name | Description |
| --- | --- | --- |
|  | [{dtor}](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_%7Bdtor%7D.htm.md) | Enables using delete operator in C++ applications. It is strongly not recommended to use it directly. |
|  | [Abort](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Abort.htm.md) | Aborts currently running operation. |
|  | [Clear](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Clear_1_929597d9.htm.md) | Clears the image and sets all pixels to the specified color. |
|  | [ClearHistory](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_ClearHistory.htm.md) | Discards both undo and redo history. |
|  | [ClearRedoHistory](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_ClearRedoHistory.htm.md) | Discards redo history. |
|  | [ClearUndoHistory](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_ClearUndoHistory.htm.md) | Discards undo history. |
|  | [Clone](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Clone.htm.md) | Creates a full copy of bitmap. All the bitmap data and object properties are copied. |
|  | [Create](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Create.htm.md) | Overloaded.
Discards old bitmap data and creates new bitmap |
|  | [Deserialize](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Deserialize_1_bca7c9fe.htm.md) | Deserializes the bitmap object. |
|  | [Dispose](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Dispose.htm.md) | Releases all resources used by this [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md).
(Overrides [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).[Dispose()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_LockableObject_Dispose.htm.md).) |
|  | [Draw](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Draw.htm.md) | Overloaded.
Draws a bitmap on various surfaces as [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md), [GdiGraphics](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Drawing_GdiGraphics.htm.md), [System.Drawing.Graphics](http://msdn2.microsoft.com/en-us/ac148eb3) classes, or Windows GDI device context. |
|  | [Equals](http://msdn2.microsoft.com/en-us/bsc2ak47) | (Inherited from [Object](http://msdn2.microsoft.com/en-us/e5kfa45b).) |
|  | [Export](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Export.htm.md) | Returns pixels of bitmap as 3D array. |
|   | [FromClipboard](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_FromClipboard.htm.md) | Extracts the image data from the clipboard and creates the [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) class instance containing this image data. |
|   | [FromHdc](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_FromHdc_2_cd97b51f.htm.md) | Extracts the image data from the specified device context and creates the [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) class instance containing this image data. |
|  | [GetEmptyMask](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_GetEmptyMask.htm.md) | Returns grayscale image of the same size as current bitmap filled with black color. It can be used as mask template for transforms. |
|  | [GetGdiGraphics](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_GetGdiGraphics.htm.md) | Returns [GdiGraphics](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Drawing_GdiGraphics.htm.md) object associated with this [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md). |
|  | [GetGdiplusGraphics](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_GetGdiplusGraphics.htm.md) | Returns [System.Drawing.Graphics](http://msdn2.microsoft.com/en-us/ac148eb3) object associated with this [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md). |
|  | [GetHashCode](http://msdn2.microsoft.com/en-us/zdee4b3y) | (Inherited from [Object](http://msdn2.microsoft.com/en-us/e5kfa45b).) |
|  | [GetObjectData](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_GetObjectData_2_c341f0d6.htm.md) | Populates a [SerializationInfo](http://msdn2.microsoft.com/en-us/a9b6042e) with the data needed to serialize the [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) object. |
|  | [GetPixel](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_GetPixel_2_22dcb54d.htm.md) | Returns pixel value at specified coordinates. |
|  | [GetType](http://msdn2.microsoft.com/en-us/dfwy45w9) | (Inherited from [Object](http://msdn2.microsoft.com/en-us/e5kfa45b).) |
|  | [HorizontalPixelsToUnits](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_UnitConverterObject_HorizontalPixelsToUnits_1_e1836fc4.htm.md) | Converts horizontal value from pixels to unit specified in [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property.
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [HorizontalUnitsToPixels](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_UnitConverterObject_HorizontalUnitsToPixels_1_7a94462e.htm.md) | Converts horizontal value from unit specified in [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property to pixels.
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [Import](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Import_3_413b0f7a.htm.md) | Fills pixels of the current bitmap from given 3D array. |
|  | [Load](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Load.htm.md) | Overloaded.
Loads the bitmap from some external source. |
|  | [LoadFromClipboard](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_LoadFromClipboard.htm.md) | Loads the bitmap from the clipboard. |
|  | [LoadFromHdc](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_LoadFromHdc_2_cd97b51f.htm.md) | Captures a bitmap from the specified device context. |
|  | [LoadThumbnail](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_LoadThumbnail.htm.md) | Overloaded.
Loads the thumbnail from specified file on-the-fly. |
|  | [Lock](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_LockableObject_Lock.htm.md) | Locks the object.
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [LockBits](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_LockBits.htm.md) | Overloaded.
Locks a rectangular area of the bitmap and returns [BitmapData](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_BitmapData.htm.md) object which provides direct access to pixels (without copying). |
|  | [MemberwiseClone](http://msdn2.microsoft.com/en-us/57ctke0a) | (Inherited from [Object](http://msdn2.microsoft.com/en-us/e5kfa45b).) |
|  | [Redo](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Redo.htm.md) | Overloaded.
Redoes last undone change. |
|  | [Save](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Save.htm.md) | Overloaded.
Saves the bitmap into specified file. |
|  | [SaveState](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_SaveState.htm.md) | Saves state of the object. |
|  | [SaveToClipboard](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_SaveToClipboard.htm.md) | Saves the bitmap into the clipboard. |
|  | [Serialize](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Serialize_1_bca7c9fe.htm.md) | Serializes the bitmap object. |
|  | [SetPixel](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_SetPixel_3_5b67216d.htm.md) | Sets pixel value at the specified coordinates. |
|  | [ToGdiplusBitmap](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_ToGdiplusBitmap.htm.md) | Returns [System.Drawing.Bitmap](http://msdn2.microsoft.com/en-us/4e7y164x) containing a copy of the image stored in current [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) class instance. |
|  | [ToGdiplusBitmapDirectly](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_ToGdiplusBitmapDirectly.htm.md) | Returns [System.Drawing.Bitmap](http://msdn2.microsoft.com/en-us/4e7y164x) which references to the same bitmap data as the current [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) class instance. |
|  | [ToString](http://msdn2.microsoft.com/en-us/7bxwbwt2) | (Inherited from [Object](http://msdn2.microsoft.com/en-us/e5kfa45b).) |
|  | [Undo](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_Undo.htm.md) | Overloaded.
Undoes last made change. |
|  | [Unload](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Unload.htm.md) | Unloads bitmap data. |
|  | [Unlock](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_LockableObject_Unlock.htm.md) | Unlocks the object previously locked with method [Lock()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_LockableObject_Lock.htm.md).
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [UnlockBits](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_UnlockBits_1_ed2555df.htm.md) | Unlocks previously locked area of bitmap with [LockBits(Int32, Int32, Int32, Int32)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_LockBits_4_951ae041.htm.md) method. |
|  | [VerticalPixelsToUnits](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_UnitConverterObject_VerticalPixelsToUnits_1_e1836fc4.htm.md) | Converts vertical value from pixels to unit specified in [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property.
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [VerticalUnitsToPixels](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_UnitConverterObject_VerticalUnitsToPixels_1_7a94462e.htm.md) | Converts vertical value from unit specified in [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property to pixels.
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
## Operators
| | Name | Description |
| --- | --- | --- |
|   | [Implicit](https://www.graphicsmill.com/docs/gm5/O_T_Aurigma_GraphicsMill_Bitmap_op_Implicit.htm.md) | Overloaded.
Cast this instance of the [Aurigma.GraphicsMill.Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md) to [System.Drawing.Bitmap](http://msdn2.microsoft.com/en-us/4e7y164x) or vice versa. |
## Properties
| | Name | Description |
| --- | --- | --- |
|  | [BitsLocked](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_BitsLocked.htm.md) | Indicates if pixels are locked with [LockBits(Int32, Int32, Int32, Int32)](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_LockBits_4_951ae041.htm.md). |
|  | [BitsPerPixel](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_BitsPerPixel.htm.md) | Returns number of bits per pixel. |
|  | [CanRedo](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_CanRedo.htm.md) | Indicates if last reverted action can be redone. |
|  | [CanUndo](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_CanUndo.htm.md) | Indicates if last bitmap modification can be undone. |
|  | [Channels](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Channels.htm.md) | Returns object which provides access to various operations with bitmap channels. |
|  | [ColorAdjustment](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_ColorAdjustment.htm.md) | Returns object providing methods which are responsible for color adjustment and tone correction (brightness/contrast, levels, hue/saturation/lightness adjustment, etc.). |
|  | [ColorManagement](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_ColorManagement.htm.md) | Returns object providing methods which are responsible for color management. |
|  | [ColorProfile](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_ColorProfile.htm.md) | Gets/sets color profile associated with the bitmap. |
|  | [ColorSpace](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_ColorSpace.htm.md) | Indicates color space of the current bitmap. |
|  | [CompressSerializedData](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_CompressSerializedData.htm.md) | Gets/sets a value that specifies whether to compress data during serialization. |
|  | [Handle](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Handle.htm.md) | Gets a GDI handle to the bitmap (HBITMAP). |
|  | [HasAlpha](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_HasAlpha.htm.md) | Specifies whether current pixel format supports alpha channel (information about opacity of pixels). |
|  | [Height](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Height.htm.md) | Returns current bitmap height in pixels. |
|  | [HorizontalResolution](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_HorizontalResolution.htm.md) | Specifies horizontal resolution of the image (also known as DPI, dots per inch).
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [IsCmyk](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsCmyk.htm.md) | Indicates if color space of current bitmap is CMYK. |
|  | [IsDisposed](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_IsDisposed.htm.md) | (Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [IsEmpty](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsEmpty.htm.md) | Indicates if bitmap is empty (no bitmap data loaded). |
|  | [IsExtended](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsExtended.htm.md) | Indicates if current pixel format is extended (i.e. 16 bits per channel). |
|  | [IsGrayScale](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsGrayScale.htm.md) | Indicates if color space of current bitmap is grayscale. |
|  | [IsIndexed](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsIndexed.htm.md) | Indicates if current bitmap is indexed (palette-based). |
|  | [IsRgb](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_IsRgb.htm.md) | Indicates if color space of current bitmap is RGB. |
|  | [Locked](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_Locked.htm.md) | Indicates if the object has been locked.
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [LogicalHeight](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_LogicalHeight.htm.md) | Returns current bitmap height in units specified with [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property. |
|  | [LogicalWidth](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_LogicalWidth.htm.md) | Returns current bitmap width in units specified with [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) property. |
|  | [MaxUndoStepCount](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_MaxUndoStepCount.htm.md) | Gets/sets maximum number of available undo steps (levels). |
|  | [MemoryUsed](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_MemoryUsed.htm.md) | Returns a number of bytes occupied with pixels of this [Bitmap](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md). |
|  | [Modified](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Modified.htm.md) | Indicates if the bitmap was changed since last saving. |
|  | [Palette](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Palette.htm.md) | Returns palette accosiated with bitmap. |
|  | [PixelFormat](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_PixelFormat.htm.md) | Returns pixel format of the current bitmap. |
|  | [RedoStepCount](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_RedoStepCount.htm.md) | Returns number of available redo levels (i.e. how much time method [Redo()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Redo.htm.md) can be called). |
|  | [Statistics](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Statistics.htm.md) | Returns an object providing methods which retrieves bitmap stats (like histogram, etc). |
|  | [Timeout](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_LockableObject_Timeout.htm.md) | Gets/sets value specifying maximum time for which object can be locked.
(Inherited from [LockableObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_LockableObject.htm.md).) |
|  | [Transforms](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Transforms.htm.md) | Returns object providing methods which are responsible for geometric transformations of the bitmap (resize, rotate, crop, swirl, etc). |
|  | [UndoRedoEnabled](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_UndoRedoEnabled.htm.md) | Enables or disables undo/redo functionality. |
|  | [UndoRedoTrackingEnabled](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_UndoRedoTrackingEnabled.htm.md) | Enables or disables the automatic change tracking. |
|  | [UndoStepCount](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_UndoStepCount.htm.md) | Returns number of available undo levels (i.e. how much time method [Undo()](https://www.graphicsmill.com/docs/gm5/M_Aurigma_GraphicsMill_Bitmap_Undo.htm.md) can be called). |
|  | [Unit](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_Unit.htm.md) | Gets/sets unit to convert from/to.
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [VerticalResolution](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_UnitConverterObject_VerticalResolution.htm.md) | Specifies vertical resolution (also known as DPI, dots per inch).
(Inherited from [UnitConverterObject](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_UnitConverterObject.htm.md).) |
|  | [Width](https://www.graphicsmill.com/docs/gm5/P_Aurigma_GraphicsMill_Bitmap_Width.htm.md) | Returns current bitmap width in pixels. |
## Events
| | Name | Description |
| --- | --- | --- |
|  | [Changed](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Changed.htm.md) | Fires when the bitmap was modified (after the end of an operation). |
|  | [Changing](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Changing.htm.md) | Fires before an image is being modified (before the start of an operation). |
|  | [Progress](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Progress.htm.md) | Fires on progress notifications of the currently applied operation. |
|  | [Redoing](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Redoing.htm.md) | Fires when image is being redone (before starting). |
|  | [Redone](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Redone.htm.md) | Fires when operation has been redone (after finishing). |
|  | [Saved](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Saved.htm.md) | Fires when the image has been saved (after finishing). |
|  | [Saving](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Saving.htm.md) | Fires when image is being saved (before starting). |
|  | [StateRestored](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_StateRestored.htm.md) | Fires when the bitmap state is restored (redone or undone). |
|  | [Undoing](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Undoing.htm.md) | Fires when image is being undone (before starting). |
|  | [Undone](https://www.graphicsmill.com/docs/gm5/E_Aurigma_GraphicsMill_Bitmap_Undone.htm.md) | Fires when operation has been undone (after finishing). |
## See Also
### Reference
- [Bitmap Class](https://www.graphicsmill.com/docs/gm5/T_Aurigma_GraphicsMill_Bitmap.htm.md)
- [Aurigma.GraphicsMill Namespace](https://www.graphicsmill.com/docs/gm5/N_Aurigma_GraphicsMill.htm.md)