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VI Icon:Get As Image Data Method

LabVIEW 2013 Help

Edition Date: June 2013

Part Number: 371361K-01

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Short Name: VI Icon.Get as Image Data

Requires: Base Development System

Class: VI Methods

To Use: Create a method.

Returns the VI icon as a cluster of image data so you can draw it as a picture using the Draw Flattened Pixmap VI or save the image to a file using the Graphics Formats VIs.

You also can use the VI Icon:Save to File method to save an image of the VI icon to a file.

The clusters returned by this method are similar to the image data output of the Read JPEG File, Read PNG File, and Read BMP File VIs.

Parameters

Data typeNameRequiredDescription
Color256NoReturns information about the 8-bit VI icon. The Icon Editor dialog box saves icons in both 256-color (8-bit) and monochrome (1-bit) format.
  • image type—Reserved for future use.
  • image depth—Specifies the color depth of the image, which is the number of bits to use to describe the color of each pixel in the image. Valid values include 1, 4, 8, and 24 bits per pixel. image depth affects how LabVIEW interprets the values of image and colors.
  • image—Array of bytes that describes the color of each pixel in the image in raster order. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, each pixel has three bytes to describe its color. The first byte for each pixel describes the red value, the second byte describes the green value, and the third byte describes the blue value.

    If image depth is 8, each pixel has one byte to describe its color. The value of each bit corresponds to an element in colors, which stores 32-bit RGB values where the most-significant byte is zero, followed in order by red, green, and blue values.

    If image depth is 4, the behavior is similar to when image depth is 8 except valid values in image include 0 through 15.

    If image depth is 1, any value of zero in image corresponds to element 0 in colors. All other values correspond to element 1 in colors.

    The size of the array might be larger than expected due to padding.
  • mask—Array of bytes in which each bit describes mask information for a pixel. The first byte describes the first eight pixels, the second byte describes the next eight pixels, and so on. If a bit is zero, LabVIEW draws the corresponding pixel as transparent. If the array is empty, LabVIEW draws all pixels without transparency. If the array does not contain a bit for each pixel in the image, LabVIEW draws any pixels missing from the array without transparency.
  • colors—Array of RGB color values that correspond to the values in image. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, LabVIEW ignores this output. If image depth is 8, the array has 256 elements. If image depth is 4, the array has 16 elements. If image depth is 1, the array has 2 elements.
  • Rectangle—Cluster that contains coordinates that describe the bounding rectangle of the image, where the upper-left corner is at (0,0). The bottom right edges of the bounds does not include the image.
Color16NoReturns information about the 4-bit VI icon. The Icon Editor dialog box saves icons only in 256-color (8-bit) and monochrome (1-bit) format. Use the Color16 input of the VI Icon:Set From Image Data method to specify the 4-bit image data you want to retrieve with this output.
  • image type—Reserved for future use.
  • image depth—Specifies the color depth of the image, which is the number of bits to use to describe the color of each pixel in the image. Valid values include 1, 4, 8, and 24 bits per pixel. image depth affects how LabVIEW interprets the values of image and colors.
  • image—Array of bytes that describes the color of each pixel in the image in raster order. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, each pixel has three bytes to describe its color. The first byte for each pixel describes the red value, the second byte describes the green value, and the third byte describes the blue value.

    If image depth is 8, each pixel has one byte to describe its color. The value of each bit corresponds to an element in colors, which stores 32-bit RGB values where the most-significant byte is zero, followed in order by red, green, and blue values.

    If image depth is 4, the behavior is similar to when image depth is 8 except valid values in image include 0 through 15.

    If image depth is 1, any value of zero in image corresponds to element 0 in colors. All other values correspond to element 1 in colors.

    The size of the array might be larger than expected due to padding.
  • mask—Array of bytes in which each bit describes mask information for a pixel. The first byte describes the first eight pixels, the second byte describes the next eight pixels, and so on. If a bit is zero, LabVIEW draws the corresponding pixel as transparent. If the array is empty, LabVIEW draws all pixels without transparency. If the array does not contain a bit for each pixel in the image, LabVIEW draws any pixels missing from the array without transparency.
  • colors—Array of RGB color values that correspond to the values in image. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, LabVIEW ignores this output. If image depth is 8, the array has 256 elements. If image depth is 4, the array has 16 elements. If image depth is 1, the array has 2 elements.
  • Rectangle—Cluster that contains coordinates that describe the bounding rectangle of the image, where the upper-left corner is at (0,0). The bottom right edges of the bounds does not include the image.
MonochromeNoReturns information about the 1-bit VI icon. The Icon Editor dialog box saves icons in both 256-color (8-bit) and monochrome (1-bit) format.
  • image type—Reserved for future use.
  • image depth—Specifies the color depth of the image, which is the number of bits to use to describe the color of each pixel in the image. Valid values include 1, 4, 8, and 24 bits per pixel. image depth affects how LabVIEW interprets the values of image and colors.
  • image—Array of bytes that describes the color of each pixel in the image in raster order. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, each pixel has three bytes to describe its color. The first byte for each pixel describes the red value, the second byte describes the green value, and the third byte describes the blue value.

    If image depth is 8, each pixel has one byte to describe its color. The value of each bit corresponds to an element in colors, which stores 32-bit RGB values where the most-significant byte is zero, followed in order by red, green, and blue values.

    If image depth is 4, the behavior is similar to when image depth is 8 except valid values in image include 0 through 15.

    If image depth is 1, any value of zero in image corresponds to element 0 in colors. All other values correspond to element 1 in colors.

    The size of the array might be larger than expected due to padding.
  • mask—Array of bytes in which each bit describes mask information for a pixel. The first byte describes the first eight pixels, the second byte describes the next eight pixels, and so on. If a bit is zero, LabVIEW draws the corresponding pixel as transparent. If the array is empty, LabVIEW draws all pixels without transparency. If the array does not contain a bit for each pixel in the image, LabVIEW draws any pixels missing from the array without transparency.
  • colors—Array of RGB color values that correspond to the values in image. The value of image depth determines how LabVIEW interprets the value of this output. If image depth is 24, LabVIEW ignores this output. If image depth is 8, the array has 256 elements. If image depth is 4, the array has 16 elements. If image depth is 1, the array has 2 elements.
  • Rectangle—Cluster that contains coordinates that describe the bounding rectangle of the image, where the upper-left corner is at (0,0). The bottom right edges of the bounds does not include the image.

Remarks

The following table lists the characteristics of this method.

Data typeNo return value
Available in Run-Time EngineYes (Read/Write)
Available in Real-Time Operating SystemYes
Settable when the VI is runningYes
Loads the front panel into memoryNo
Need to authenticate before useNo
Loads the block diagram into memoryNo
Remote access allowedYes
Must wait until user interface is idleNo
Available with control VIsYes
Available with global VIsYes
Available with strict type definitionsNo
Available with polymorphic VIsYes

 

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