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Bitmap.Draw Method (IntPtr, Int32, Int32, CombineMode, Single)

Draws current bitmap on given Windows GDI device context (represented as handle to device context, i.e. HDC).

Namespace: Aurigma.GraphicsMill
Assembly: Aurigma.GraphicsMill (in Aurigma.GraphicsMill.dll)

Syntax

Visual Basic
Public Sub Draw ( _
	hdc As IntPtr, _
	destinationX As Integer, _
	destinationY As Integer, _
	combine As CombineMode, _
	opacity As Single _
)
C#
public void Draw(
	IntPtr hdc,
	int destinationX,
	int destinationY,
	CombineMode combine,
	float opacity
)

Parameters

hdc

Type: System.IntPtr

Target handle to device context (on which current bitmap should be drawn).
destinationX

Type: System.Int32

Horizontal position of left-top corner of the destination rectangle.
destinationY

Type: System.Int32

Vertical position of left-top corner of the destination rectangle.
combine

Type: Aurigma.GraphicsMill.Transforms.CombineMode

Algorithm of images blending (plain pixels copying, alpha blending, bitwise operations, etc).
opacity

Type: System.Single

A number in range [0, 1] specifying total opacity of the image. If 0, image is completely transparent, if 1, image is completely opaque.

Remarks

Bitmap is drawn to destination rectangle on the given HDC with dimensions equal to the dimensions of the bitmap.

Note

If bitmap has pixel format which is not GDI-compatible (e.g. extended pixel formats, CMYK, etc) method will automatically create a copy converted to the Format32bppArgb. That's why you always get it drawn, but if you are going to call this method multiple times, it is recommended to convert it to some GDI-compatible format (like Format32bppArgb) to increase the performance.

All coordinates are measured in units specified with Unit property of the source bitmap.

See Also

Reference

Manual