FromEmf(IntPtr,Int32,Int32,RasterColor) Method

public static RasterImage FromEmf( 
   IntPtr hemf,
   int width,
   int height,
   RasterColor backColor
)

'Declaration
 

Public Overloads Shared Function FromEmf( _
   ByVal hemf As IntPtr, _
   ByVal width As Integer, _
   ByVal height As Integer, _
   ByVal backColor As RasterColor _
) As RasterImage

'Usage
 

Dim hemf As IntPtr
Dim width As Integer
Dim height As Integer
Dim backColor As RasterColor
Dim value As RasterImage
 
value = RasterImageConverter.FromEmf(hemf, width, height, backColor)

public:
static RasterImage^ FromEmf( 
   IntPtr hemf,
   int width,
   int height,
   RasterColor backColor
) 

Parameters

hemf

Handle to the EMF to be converted.

width

Amount by which to scale the enhanced metafiles original width.

height

Amount by which to scale the enhanced metafiles original height.

backColor

The color to use to fill the image area before painting the metafile objects.

Return Value

Some metafiles do not have a background color, and hence, when the metafile is used to create a Leadtools.RasterImage object, the area not covered by the metafile objects will contain the default image background color (black). To create a raster image from a metafile like this with a specific background color, set the desired background color in the backColor parameter.

When this method is completed, there are two copies of the drawing in memory: the new Leadtools.RasterImage object and the original EMF. Freeing one will not affect the other.

The enhanced metafile can be loaded at the original dimension or scaled by using the width and height parameters.

If width == 0 and height == 0 - the enhanced metafile is loaded at the size present in the file.

If width == 0 and height > 0 - the enhanced metafile is stretched so that it has the height height (preserving the aspect ratio).

If width > 0 and height == 0 - the enhanced metafile is stretched so that it has the width width (preserving the aspect ratio).

If width > 0 and height > 0 - the enhanced metafile is stretched so that it has the width width and height height (the aspect ratio is ignored).

This method does not support signed images.

For more information refer to RasterImage and GDI/GDI+.

Target Platforms

Reference

RasterImageConverter Class
RasterImageConverter Members
Overload List
FromEmf(hemf, width, height)
ChangeFromEmf(IntPtr,Int32,Int32) Method
ChangeFromWmf(IntPtr,Int32,Int32) Method
FromWmf
ChangeToEmf Method
ChangeToWmf Method
ToEmf
ToWmf