DrawImage Method
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Draws a rectangular block of pixels on the display device.
This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.
Overload List
| Name | Description | |
|---|---|---|
.gif "Public method") |
DrawImage(Int32, Int32, Bitmap, Int32, Int32, Int32, Int32) | Draws a rectangular block of pixels on the display device. |
|
DrawImage(Int32, Int32, Bitmap, Int32, Int32, Int32, Int32, UInt16) | Draws a rectangular block of pixels with a specified degree of transparency. |
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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);