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AlphaBlend API (Windows Embedded CE 6.0)

1/6/2010

The AlphaBlend function displays bitmaps that have transparent or semitransparent pixels.

In Windows Embedded CE this Catalog item adds the function AlphaBlend to the Graphics Device Interface (GDI) and the Graphics Primitive Engine (GPE).

For Windows Embedded CE the following table shows the Sysgen variables that enable the AlphaBblend API.

Sysgen variable Description

SYSGEN_GDI_ALPHABLEND

Set this Sysgen to enable the AlphaBlend function.

For Windows Embedded CE the following table shows the components and modules that implement DirectDraw.

Item Module Component

AlphaBlend API

mgalphablend

None

For Windows Embedded CE the AlphaBlend API does not require special display hardware, though it can use hardware acceleration if it is available. It can be supported in software.

For Windows Embedded CE the following table lists the Catalog item dependencies that most directly relate to this item's functionality. There are additional dependencies as well. For more information on determining the complete list of dependencies for this Catalog item, see Catalog Item Dependencies.

Catalog Item Sysgen variable

Minimal GDI Configuration

SYSGEN_MINGDI

Minimal GWES Configuration

SYSGEN_MINGWES

Minimal Input Configuration

SYSGEN_MININPUT

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