MakeTransparent Method
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Sets a bitmap's transparent color.
Namespace: Microsoft.SPOT
Assembly: Microsoft.SPOT.Graphics (in Microsoft.SPOT.Graphics.dll)
Syntax
'Declaration
Public Sub MakeTransparent ( _
color As Color _
)
public void MakeTransparent(
Color color
)
public:
void MakeTransparent(
Color color
)
member MakeTransparent :
color:Color -> unit
public function MakeTransparent(
color : Color
)
Parameters
- color
Type: Microsoft.SPOT.Presentation.Media. . :: . .Color
The color to be used as the bitmap's transparent color.
Remarks
If a bitmap is embedded as a resource, and its BitmapImageType is Bmp, then the Bitmap object is read-only, and attempts to modify it will throw an exception. You must make a copy of it using Bitmap.DrawImage, and modify the copy, as shown in the following code:
Bitmap bmpMyBitmap = Resources.GetBitmap(Resources.BitmapResources.MyBitmap);
Bitmap bmpCopy = new Bitmap(bmpMyBitmap.Width, bmpMyBitmap.Height);
// copy the bitmap
bmpCopy.DrawImage(0, 0, bmpMyBitmap, 0, 0, bmpMyBitmap.Width, bmpMyBitmap.Height);
// now you may modify the copy using any Bitmap method
bmpCopy.MakeTransparent(Microsoft.SPOT.Presentation.Media.Color.White);
The .NET Micro Framework provides the Microsoft.SPOT.Bitmap class for lower-level access, such as animation. For displaying static bitmaps and hyperlinked bitmaps, use the Image control.
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see dd66cd4c-b087-415f-9c3e-94e3a1835f74.