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  man pages->IRIX man pages -> movie/mvIsReadOnly (3d)              


mvIsReadOnly(3dm)					     mvIsReadOnly(3dm)

NAME    [Toc]    [Back]

     mvIsReadOnly - see	if a movie instance is read-only

SYNOPSIS    [Toc]    [Back]

     #include <dmedia/moviefile.h>

     MVboolean mvIsReadOnly( MVid movie	);

DESCRIPTION    [Toc]    [Back]

     In	some circumstances an application may not be allowed to	modify a movie
     even if the movie is opened O_RDWR.  Reasons for this include incomplete
     support of	certain	file formats or	lack of	necessary compression
     functionality.  The call mvIsReadOnly should be called after a movie has
     been opened to determine whether or not calls which modify	the movie will
     be	allowed.  mvIsReadOnly returns DM_TRUE if the movie is read-only and
     DM_FALSE if it is not.

SEE ALSO    [Toc]    [Back]

     mvIntro(3dm), mvOpen(3dm).

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