Initializes a new instance of the
GcBitmap class and creates the image.
The image content is not initialized and can contain any random data.
If subsequent rendering is going to cover the whole surface of the bitmap, or if CreateGraphics will be called on the bitmap with a non-null background color, clearing it (which is a lengthy operation for large bitmaps) is not needed. If some areas of the bitmap are going to be left untouched, they must be cleared to avoid the possibility of random artifacts showing.
シンタックス
'宣言
Public Function New( _
ByVal As System.Integer, _
ByVal As System.Integer, _
ByVal As System.Boolean, _
Optional ByVal As System.Single, _
Optional ByVal As System.Single, _
Optional ByVal As System.Boolean _
)
public GcBitmap(
System.int ,
System.int ,
System.bool ,
System.float ,
System.float ,
System.bool
)
パラメータ
- pixelWidth
- The width of the image, in pixels.
- pixelHeight
- The height of the image, in pixels.
- opaque
- Indicates whether the alpha channel should be ignored.
- dpiX
- The horizontal dpi of the image.
- dpiY
- The vertical dpi of the image.
- storeInTempFile
- Indicates whether pixel data should be dynamically mapped to a temporary file rather than kept fully in memory.
参照