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//! [0]
import sys
from PySide.QtGui import QApplication, qRgb
from PySide.QtOpenGL import QGLColormap
def main(argv):
app = QApplication(argv)
widget = MySuperGLWidget() # a QGLWidget in color-index mode
colormap = QGLColormap()
# This will fill the colormap with colors ranging from
# black to white.
for i in range(0, colormap.size()):
colormap.setEntry(i, qRgb(i, i, i))
widget.setColormap(colormap)
widget.show()
return app.exec_()
if __name__ == "__main__":
main(sys.argv)
//! [0]
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