int ping_image(const char *filename, ImageSize *size)

This method extracts the dimension of the given image by calling the function PingImage of the ImageMagick library

Documentation

This method extracts the dimension of the given image by calling the function PingImage of the ImageMagick library.

Returns:
0, if everything is OK. -1, if the image doesn't exist.
Parameters:
filename - The filename of the image, which dimension should be extracted.
size - A pointer to an ImageSize structure, where the dimension will be written.

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