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The glGetClipPlane function returns the coefficients of the specified clipping plane.
Syntax
void WINAPI glGetClipPlane(
GLenum plane,
GLdouble *equation
);
Parameters
-
plane
-
A clipping plane. The number of clipping planes depends on the implementation, but at least six clipping planes are supported. They are identified by symbolic names of the form GL_CLIP_PLANE i where 0 = i < GL_MAX_CLIP_PLANES.
-
equation
-
Returns four double-precision values that are the coefficients of the plane equation of plane in eye coordinates.
Return value
This function does not return a value.
Error codes
The following error codes can be retrieved by the glGetError function.
| Name | Meaning |
|---|---|
|
plane was not an accepted value. |
|
The function was called between a call to glBegin and the corresponding call to glEnd. |
Remarks
The glGetClipPlane function returns in equation the four coefficients of the plane equation for plane.
It is always the case that GL_CLIP_PLANEi = GL_CLIP_PLANE0 + i.
If an error is generated, no change is made to the contents of equation.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|
| Library |
|
| DLL |
|