---
name: "SoGLShaderProgramElement"
section: "3"
platform: "linux"
package: "coin"
version: "1:4.0.10-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/SoGLShaderProgramElement"
---

# SoGLShaderProgramElement(3)

## NAME

SoGLShaderProgramElement

## SYNOPSIS

Inherits **SoReplacedElement**.

### Public Member Functions

virtual void **init** (**SoState** \*state)\
 virtual void **push** (**SoState** \*)\
 virtual void **pop** (**SoState** \*state, const **SoElement** \*prevTopElement)\
 virtual SbBool **matches** (const **SoElement** \*element) const\
 virtual **SoElement** \* **copyMatchInfo** () const\

Public Member Functions inherited from **SoReplacedElement** SbUniqueId **getNodeId** () const\
 virtual void **print** (FILE \*file) const\

Public Member Functions inherited from **SoElement** const **SoType** **getTypeId** (void) const\
 int **getStackIndex** (void) const\
 void **setDepth** (const int **depth**)\
 int **getDepth** (void) const\
 virtual **~SoElement** ()\

### Static Public Member Functions

static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void \* **createInstance** (void)\
 static void **enable** (**SoState** \*const state, const SbBool onoff)\
 static void **set** (**SoState** \*const state, **SoNode** \*const node, SoGLShaderProgram \*program)\
 static SoGLShaderProgram \* **get** (**SoState** \*state)\
 static void **initClass** (void)\

Static Public Member Functions inherited from **SoReplacedElement** static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void **initClass** (void)\

Static Public Member Functions inherited from **SoElement** static void **initClass** (void)\
 static **SoType** **getClassTypeId** (void)\
 static int **getClassStackIndex** (void)\
 static void **initElements** (void)\
 static int **getNumStackIndices** (void)\
 static **SoType** **getIdFromStackIndex** (const int **stackIndex**)\

### Public Attributes

SoGLShaderProgram \* **shaderProgram**\

### Additional Inherited Members

Protected Member Functions inherited from **SoReplacedElement** virtual **~SoReplacedElement** ()\

Protected Member Functions inherited from **SoElement** **SoElement** (void)\
 void **capture** (**SoState** \*const state) const\
 virtual void **captureThis** (**SoState** \*state) const\
 void **setTypeId** (const **SoType** **typeId**)\
 void **setStackIndex** (const int index)\
 **SoElement** \* **getNextInStack** (void) const\
 **SoElement** \* **getNextFree** (void) const\

Static Protected Member Functions inherited from **SoReplacedElement** static **SoElement** \* **getElement** (**SoState** \*const state, const int **stackIndex**, **SoNode** \*const node)\

Static Protected Member Functions inherited from **SoElement** static **SoElement** \* **getElement** (**SoState** \*const state, const int **stackIndex**)\
 static const **SoElement** \* **getConstElement** (**SoState** \*const state, const int **stackIndex**)\
 static int **createStackIndex** (const **SoType** id)\

Protected Attributes inherited from **SoReplacedElement** SbUniqueId **nodeId**\

Protected Attributes inherited from **SoElement** **SoType** **typeId**\
 int **stackIndex**\
 int **depth**\

Static Protected Attributes inherited from **SoElement** static int **classStackIndex**\
 static **SoTypeList** \* **stackToType**\

## Member Function Documentation

### virtual void SoGLShaderProgramElement::init (SoState \* state) \[virtual\]

This function initializes the element type in the given **SoState**. It is called for the first element of each enabled element type in **SoState** objects.

Reimplemented from **SoReplacedElement**.

### virtual void SoGLShaderProgramElement::push (SoState \* state) \[virtual\]

This method is called every time a new element is required in one of the stacks. This happens when a writable element is requested, using **SoState::getElement()** or indirectly **SoElement::getElement()**, and the depth of the current element is less than the state depth.

Override this method if your element needs to copy data from the previous top of stack. The **push()** method is called on the new element, and the previous element can be found using **SoElement::getNextInStack()**.

Reimplemented from **SoElement**.

### virtual void SoGLShaderProgramElement::pop (SoState \* state, const SoElement \* prevTopElement) \[virtual\]

This method is called when the state is popped, and the depth of the element is bigger than the current state depth. **pop()** is called on the new top of stack, and a pointer to the previous top of stack is passed in *prevTopElement*.

Override this method if you need to copy some state information from the previous top of stack.

Reimplemented from **SoElement**.

### virtual SbBool SoGLShaderProgramElement::matches (const SoElement \* element) const \[virtual\]

This function returns TRUE is the element matches another element (of the same class), with respect to cache validity.

If the application programmer's extension element has a **matches()** function, it should also have a **copyMatchInfo()** function.

Reimplemented from **SoReplacedElement**.

### virtual SoElement \* SoGLShaderProgramElement::copyMatchInfo (void ) const \[virtual\]

This function creates a copy of the element that contains enough information to enable the **matches()** function to work.

Used to help with scene graph traversal caching operations.

Reimplemented from **SoReplacedElement**.

## Author

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