ImageGear for C and C++ on Linux v20.0 - Updated
API Reference Guide > Core Component API Reference > Core Component Functions Reference > Multimedia Functions > IG_mult_current_frame_image_get

This function retrieves the HIGEAR of the current frame's image.


Copy Code
AT_ERRCOUNT ACCUAPI IG_mult_current_frame_image_get(
        HIGMULT hMult, 
        LPHIGEAR lphIGear


Name Type Description
hMult HIGMULT Multimedia instance handle.
lphIGear LPHIGEAR Image handle.

Return Value:

Returns the number of ImageGear errors that occurred during this function call. If there are no errors, the return value is IGE_SUCCESS.

Supported Raster Image Formats:

This function does not process image pixels.


Copy Code
/* Saves first frame as a 128-pixel-wide thumbnail */
AT_ERRCOUNT nErrcount;  /* Number of errors on stack */
HIGMULT hMult;          /* Multimedia instance handle */
HIGEAR hIGear;          /* HIGEAR handle of image */
HIGEAR hIGearCopy;      /* HIGEAR handle of duplicate */
AT_DIMENSION w, h;      /* Width and height of image */
nErrcount = IG_mult_current_frame_reset(hMult);
nErrcount = IG_mult_current_frame_image_get(hMult, &hIGear);
nErrcount = IG_image_duplicate(hIGear, &hIGearCopy);
nErrcount = IG_image_dimensions_get(hIGearCopy, &w, &h, NULL);
nErrcount = IG_IP_resize(hIGearCopy, 128, (AT_DIMENSION) ((float) h / (float) w * 128),
nErrcount = IG_save_file(hIGearCopy, "thumb.jpg", IG_SAVE_JPG);
nErrcount = IG_image_delete(hIGearCopy);


This image is owned by ImageGear. You can perform read-only operations such as display or save to a file, but do not attempt to free or alter the image. If you need to alter the image (resize it, for example), use IG_image_duplicate() to make a copy of the image, work with the copy, and free it with IG_image_delete() when finished.

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