From OpenGL Reference
Jump to navigation Jump to search

Determines if a name corresponds to a program object.

C Specification[edit]

GLboolean glIsProgram( GLuint program );


program - Specifies a potential program object.


 glIsProgram returns GL_TRUE if program is the name of a program object previously created with glCreateProgram and not yet deleted with glDeleteProgram . If program is zero or a non-zero value that is not the name of a program object, or if an error occurs, glIsProgram returns GL_FALSE .


No error is generated if program is not a valid program object name.

A program object marked for deletion with glDeleteProgram but still in use as part of current rendering state is still considered a program object and glIsProgram will return GL_TRUE .

Associated Gets[edit]

 glGet with the argument GL_CURRENT_PROGRAM 

 glGetActiveAttrib with arguments program and the index of an active attribute variable

 glGetActiveUniform with arguments program and the index of an active uniform variable

 glGetAttachedShaders with argument program 

 glGetAttribLocation with arguments program and the name of an attribute variable

 glGetProgram with arguments program and the parameter to be queried

 glGetProgramInfoLog with argument program 

 glGetUniform with arguments program and the location of a uniform variable

 glGetUniformLocation with arguments program and the name of a uniform variable

Version Support[edit]

 glIsProgram  2.0+

See Also[edit]

 glAttachShader , glBindAttribLocation , glCreateProgram , glDeleteProgram , glDetachShader , glLinkProgram , glUniform , glUseProgram , glValidateProgram 


Copyright© 2003-2005 3Dlabs Inc. Ltd. Copyright© 2010-2014 Khronos Group. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999.