GltZpr Download
Downloading GltZpr 0.4
GLT ZPR is a mouse manipulation module for C or C GLUT/OpenGL programs. With the addition of two lines of code, any GLUT based OpenGL program can include mouse-based zooming, panning and rotation. The module works by supplying GLUT callback functions for glutReshapeFunc, glutMouseFunc and glutMotionFunc. These provide VRML examiner-style mouse manipulation using the left, middle and right mouse buttons. The middle button can be emulated by using both left and right together. The ZPR callback functions will manage the OpenGL modelview matrix, according to mouse events received via GLUT. GLT ZPR can be included in any C or C application by adding zpr.c and zpr.h. The zprInit() function should be called after the window is created (glutCreateWindow) and the initial scaling and orientation has been set.
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