dAlphaBlend (Function)

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dAlphaBlend (Function)

In french: dFusionne

Blends two images together. This allows you to create fade-in effects between 2 images. This function handles:

the Image controls,
the Image variables.
Versions 25 and later
the WDPic variables,
New in version 25
the WDPic variables,
the WDPic variables,
Versions 25 and later
the picLayer variables.
New in version 25
the picLayer variables.
the picLayer variables.

Versions 18 and later

This function is now available for Java applications.

This function is now available for Android applications.

New in version 18

This function is now available for Java applications.

This function is now available for Android applications.

This function is now available for Java applications.

This function is now available for Android applications.

Versions 21 and later

This function is now available in Universal Windows 10 App mode.

New in version 21

This function is now available in Universal Windows 10 App mode.

Caution: A specific configuration is required to use this function in Linux. See The drawings for more details.

Example

// Declare the promotion image
MyPromoImage is Image = "PromoImage.png"

// Blend the promotion image in the product image with an opacity set to 80%
dAlphaBlend(IMG_PRODUCT, MyPromoImage, 80)

Syntax

dAlphaBlend(<Destination image> , <Source image> [, <Opacity>])

<Destination image>: Image control or Image, WDPic or picLayer variable

Image in which the merge must be performed. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of an WDPic variable. Only the background layer will be handled.
New in version 25
the name of an WDPic variable. Only the background layer will be handled.
the name of an WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.
For the blend, this image will be considered as the background image.

<Source image>: Image control or Image, WDPic or picLayer variable

Image to merge. This image can correspond to:
the name of an Image control.
the name of an Image variable.
Versions 25 and later
the name of a WDPic variable. Only the background layer will be handled.
New in version 25
the name of a WDPic variable. Only the background layer will be handled.
the name of a WDPic variable. Only the background layer will be handled.
Versions 25 and later
the name of a picLayer variable.
New in version 25
the name of a picLayer variable.
the name of a picLayer variable.

<Opacity>: Optional real

Percentage of opacity that must be applied to <Source image> before performing the blend (100% by default, no opacity is applied).

Remarks

The size of the destination image corresponds to the reference size.
dAlphaBlend performs the merge by keeping the alpha layer of the destination image. Therefore, the alpha layer of the source image is not used.

Component : wd250pnt.dll