2013
Khronos Group
glGetObjectLabel
3G
glGetObjectLabel
retrieve the label of a named object identified within a namespace
C Specification
void glGetObjectLabel
GLenum identifier
GLuint name
GLsizei bifSize
GLsizei * length
char * label
Parameters
identifier
The namespace from which the name of the object is allocated.
name
The name of the object whose label to retrieve.
bufSize
The length of the buffer whose address is in label.
length
The address of a variable to receive the length of the object label.
label
The address of a string that will receive the object label.
Description
glGetObjectLabel retrieves the label of the object identified by
name within the namespace given by identifier.
identifier must be one of GL_BUFFER, GL_SHADER,
GL_PROGRAM, GL_VERTEX_ARRAY, GL_QUERY,
GL_PROGRAM_PIPELINE, GL_TRANSFORM_FEEDBACK, GL_SAMPLER,
GL_TEXTURE, GL_RENDERBUFFER, GL_FRAMEBUFFER,
to indicate the namespace containing the names of buffers, shaders, programs, vertex array objects, query objects,
program pipelines, transform feedback objects, samplers, textures, renderbuffers and frame
buffers, respectively.
label is the address of a string that will be used to store the object label.
bufSize specifies the number of characters in the array identified by label.
length contains the address of a variable which will receive the the number of characters in the object label.
If length is NULL, then it is ignored and no data is written. Likewise, if label
is NULL, or if bufSize is zero then no data is written to label.
Errors
GL_INVALID_ENUM is generated if identifier
is not one of the accepted object types.
GL_INVALID_OPERATION is generated if name
is not the name of an existing object of the type specified by identifier.
GL_INVALID_VALUE is generated if bufSize is
zero.
If not NULL, length and label should be addresses
to which the client has write access, otherwise undefined behavior, including process termination
may occur.
Associated Gets
glGet with argument GL_MAX_LABEL_LENGTH.
See Also
glPushDebugGroup,
glPopDebugGroup,
glObjectLabel,
glGetObjectPtrLabel.
Copyright
Copyright 2013 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.
http://opencontent.org/openpub/.