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Method
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Description
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Bitmap
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Creates a new Bitmap. If an image is provided then it will be
drawn into the new Bitmap, scaled to fill the entire space. If an
image is provided but no width or height then the new Bitmap will
take its dimensions from the supplied image. |
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Clone
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Makes a deep copy of the current Bitmap. |
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Commit
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Commits all changes to the image and ensures that any content
is rasterized. |
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S» FromSystemDrawingBitmap
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Creates an ImageGlue Bitmap from a System.Drawing Bitmap. |
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GetPixel
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Gets the RGB color of a particular pixel. This function is
provided for compatibility with System.Drawing. However for
efficiency and flexibility you should prefer
BitmapData.GetPixel. |
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LockBits
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Locks the Bitmap and return the raw data.
Converting between pixel formats is expensive so where possible
you should try and use the current pixel format of the Bitmap.
If you specify a pixel format which is different from the
current one try and specify ImageLockMode.ReadOnly as this obviates
the need to write the pixels back to the original image.
Typically you will want to lock the entire area of the Bitmap,
but for convenience you can lock a smaller area using the rect
parameter. However it is important to note that the Scan0 property
of the returned BitmapData specifies a pointer to a byte, so the
left coordinate of the rectangle you provide must be on a byte
boundary. If this is not the case an exception will be
raised. |
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MakeTransparent
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Makes a color transparent by setting the alpha value of all
matching pixels to zero. For how to implement a fuzzy match see the
AdjustColors
function. |
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Resize
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Resize the bitmap to a certain dimension or area. This resizes
the drawing area rather than any content that already exists there.
If the width or height increases then new blank space will be
uncovered at the right and bottom respectively. If they decrease
then space at the right and bottom will be removed. |
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SetPixel
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Sets the RGB color of a particular pixel. This function is
provided for compatibility with System.Drawing. However for
efficiency and flexibility you should prefer
BitmapData.SetPixel. |
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SetResolution
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Set the resolution of the bitmap to a certain dimension or
area. Changing the resolution does not change content in the Bitmap
- the scale is left unchanged. |
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S» ToSystemDrawingBitmap
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Creates a System.Drawing Bitmap from an ImageGlue Bitmap.
Because System.Drawing is RGB only there may be some change of
color space or depth. |
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UnlockBits
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Unlock bits locked by a previous call to LockBits. |
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