69 lines
2.1 KiB
Plaintext
69 lines
2.1 KiB
Plaintext
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'\"macro stdmacro
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.ds Vn Version 1.2
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.ds Dt 24 September 1999
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.ds Re Release 1.2.1
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.ds Dp Jan 14 18:30
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.ds Dm 01 pushname.
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.ds Xs 59541 4 pushname.gl
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.TH GLPUSHNAME 3G
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.SH NAME
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.B "glPushName, glPopName
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\- push and pop the name stack
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.SH C SPECIFICATION
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void \f3glPushName\fP(
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GLuint \fIname\fP )
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.nf
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.fi
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.SH PARAMETERS
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.TP \w'\f2name\fP\ \ 'u
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\f2name\fP
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Specifies a name that will be pushed onto the name stack.
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.SH C SPECIFICATION
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void \f3glPopName\fP( void )
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.nf
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.fi
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.SH DESCRIPTION
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The name stack is used during selection mode to allow sets of rendering
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commands to be uniquely identified.
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It consists of an ordered set of unsigned integers and is initially empty.
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.P
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\%\f3glPushName\fP causes \f2name\fP to be pushed onto the name stack.
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\%\f3glPopName\fP pops one name off the top of the stack.
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.P
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The maximum name stack depth is implementation-dependent; call
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\%\f3GL_MAX_NAME_STACK_DEPTH\fP to find out the value for a particular
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implementation. It is an
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error to push a name onto a full stack,
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or to pop a name off an empty stack.
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It is also an error to manipulate the name stack between the execution of
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\%\f3glBegin\fP and the corresponding execution of \%\f3glEnd\fP.
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In any of these cases, the error flag is set and no other change is
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made to GL state.
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.P
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The name stack is always empty while the render mode is not \%\f3GL_SELECT\fP.
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Calls to \%\f3glPushName\fP or \%\f3glPopName\fP while the render mode is not
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\%\f3GL_SELECT\fP are ignored.
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.SH ERRORS
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\%\f3GL_STACK_OVERFLOW\fP is generated if \%\f3glPushName\fP is called while the
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name stack is full.
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.P
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\%\f3GL_STACK_UNDERFLOW\fP is generated if \%\f3glPopName\fP is called while the
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name stack is empty.
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.P
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\%\f3GL_INVALID_OPERATION\fP is generated if \%\f3glPushName\fP or \%\f3glPopName\fP
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is executed between a call to \%\f3glBegin\fP and the corresponding call to
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\%\f3glEnd\fP.
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.bp
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.SH ASSOCIATED GETS
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\%\f3glGet\fP with argument \%\f3GL_NAME_STACK_DEPTH\fP
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.br
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\%\f3glGet\fP with argument \%\f3GL_MAX_NAME_STACK_DEPTH\fP
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.SH SEE ALSO
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\%\f3glInitNames(3G)\fP,
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\%\f3glLoadName(3G)\fP,
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\%\f3glRenderMode(3G)\fP,
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\%\f3glSelectBuffer(3G)\fP
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