Flips the image referenced by hIGear either horizontally or vertically.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_IP_flip(
HIGEAR hIGear,
AT_MODE nDirection
);
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Arguments:
Name |
Type |
Description |
hIGear |
HIGEAR |
HIGEAR handle of image to flip. |
nDirection |
AT_MODE |
IG_FLIP_HORIZONTAL or IG_FLIP_VERTICAL, indicating whether to flip horizontally or vertically. |
Return Value:
Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
All pixel formats supported by ImageGear for C and C++.
Sample:
Image Processing, ArtX, Medical, Timing.
Example:
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HIGEAR hIGear; // HIGEAR handle of the image
AT_ERRCOUNT nErrcount; // Count of errs on stack upon ret from func
// Load image file "picture.bmp" from working directory
nErrcount = IG_load_file("picture.bmp", &hIGear);
if(nErrcount == 0)
{
nErrcount = IG_IP_flip(hIGear, IG_FLIP_VERTICAL);
// ...
// Destroy the image
IG_image_delete(hIGear);
}
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Remarks:
Flipping horizontally exchanges the right-most pixel column of the image bitmap with the left-most. Flipping vertically exchanges the topmost pixel row (raster) of the image bitmap with the bottom-most. The dimensions of the image do not change.
If you want to turn the image upside-down (not the same as a vertical flip), use function IG_IP_rotate_multiple_90, with rotation mode set to IG_ROTATE_180.