A PRIMER FOR PROGRAMMING PAD++ IN TCL/TK
Images
Pad++ supports real-time zooming of images. The rendering speed is dependent only on the size of the resulting image and is independent of the source image size. This real-time image zooming is only possible when the Pad++ program is being displayed on the console of the same machine that is running Pad++ (i.e., real-time zooming is much slower across networks). Pad++ will print the message "Real-time image zooming supported", when starting up, if real-time image zooming is available.
Pad++ Programmer's Guide - 10 JUN 1996
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