glIsProgram — Determines if a name corresponds to a program object
GLboolean glIsProgram(GLuint program);
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.
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
glAttachShader, glBindAttribLocation, glCreateProgram, glDeleteProgram, glDetachShader, glLinkProgram, glUniform, glUseProgram, glValidateProgram
Copyright © 2003-2005 3Dlabs Inc. Ltd. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. https://opencontent.org/openpub/.