Phytec eGrabber-4plus, Руководство по оборудованию

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eGrabber-4plus
116 
PHYTEC Meßtechnik GmbH 2004 L-608e_4
In this case 25 fields are omitted of 50. The result will be, that each
second image will be produced, so always the same field type will
be omitted. Which field will be omitted first, depends on nAlign.
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Flip Image Vertically
DWORD FlipPicture(WORD nDevNo, unsigned char flip)
flip : 0 = image is stored upright
: 1 = image is flipped vertically (default)
With this fuction, the vertical orientation of the image in the memory
can be set:
flip = 0 flip=1 (default)
The image is stored upright. This
means, the lowest image memory
address contains the upper-left
corner of the image: The image is flipped vertically before it
is stored in the image memory.
The lowest image memory address
contains the lower-left corner of the
image:
This might be useful, if image date are
processed in BMP-format.
Important:
•
The setting of the vertical image orientation with FlipPicture()
must be done before the Set_Image() – function ic called. The
settings takes affect not before Set_Image() is called.
To change the settings while the grabber is running, it has to be
stopped first. Then the setting can be changed by calling the
command sequence FlipPicture() and SetImage().
•
The default setting is flip=1 (the image is stored upside-down; for
compatibility reasons.)