GlAlphaFunc: Difference between revisions
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(Created page with "{{DISPLAYTITLE:_glAlphaFunc}} The '''_glAlphaFunc''' statement enables your application to set the alpha test function. {{PageSyntax}} : SUB '''_glAlphaFunc''' (func AS _UNSIGNED LONG, ref AS SINGLE) {{PageParameters}} * OpenGL has many predefined attributes and values, which are used with its command parameters. These are detailed in the respective description. {{PageDescription}} * The syntax above shall just clarify the type of the comman...") |
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{{DISPLAYTITLE:_glAlphaFunc}} | {{DISPLAYTITLE:_glAlphaFunc }} | ||
The '''_glAlphaFunc''' | The '''_glAlphaFunc''' function enables your application to set the alpha test function. | ||
{{PageSyntax}} | {{PageSyntax}} | ||
: | : '''_glAlphaFunc''' GLenum {{Parameter|func}}, GLclampf {{Parameter|ref}} | ||
{{PageParameters}} | {{PageParameters}} | ||
* OpenGL | * OpenGL is using its own set of variable types to describe its command parameters. | ||
* Use the following table to find the respective QB64 [[Variable Types]]. | |||
{{TextStart}} | |||
'''OpenGL''' | '''C/C++''' | '''QB64''' | |||
------------+------------------+---------------------- | |||
GLenum | unsigned int | [[_UNSIGNED]] [[LONG]] | |||
GLboolean | unsigned char | [[_UNSIGNED]] [[_BYTE]] | |||
GLbitfield | unsigned int | [[_UNSIGNED]] [[LONG]] | |||
GLbyte | signed char | [[_BYTE]] | |||
GLshort | short | [[INTEGER]] | |||
GLint | int | [[LONG]] | |||
GLsizei | int | [[LONG]] | |||
GLubyte | unsigned char | [[_UNSIGNED]] [[_BYTE]] | |||
GLushort | unsigned short | [[_UNSIGNED]] [[INTEGER]] | |||
GLuint | unsigned int | [[_UNSIGNED]] [[LONG]] | |||
GLfloat | float | [[SINGLE]] | |||
GLclampf | float | [[SINGLE]] | |||
GLdouble | double | [[DOUBLE]] | |||
GLclampd | double | [[DOUBLE]] | |||
GLvoid | void | no parameters used | |||
{{TextEnd}} | |||
{{PageDescription}} | {{PageDescription}} | ||
* | * OpenGL's documentation is available in several places, so we won't reproduce it here for another time. | ||
* The full description can be found at [https://docs.microsoft.com/en-us/windows/win32/opengl/glalphafunc Microsoft Docs] and is also valid for QB64. | * The full description for this command can be found at [https://docs.microsoft.com/en-us/windows/win32/opengl/glalphafunc Microsoft Docs] and is also valid for QB64 usage. | ||
Revision as of 22:50, 13 July 2022
The _glAlphaFunc function enables your application to set the alpha test function.
Syntax
- _glAlphaFunc GLenum func, GLclampf ref
Parameters
- OpenGL is using its own set of variable types to describe its command parameters.
- Use the following table to find the respective QB64 Variable Types.
OpenGL | C/C++ | QB64 ------------+------------------+---------------------- GLenum | unsigned int | _UNSIGNED LONG GLboolean | unsigned char | _UNSIGNED _BYTE GLbitfield | unsigned int | _UNSIGNED LONG GLbyte | signed char | _BYTE GLshort | short | INTEGER GLint | int | LONG GLsizei | int | LONG GLubyte | unsigned char | _UNSIGNED _BYTE GLushort | unsigned short | _UNSIGNED INTEGER GLuint | unsigned int | _UNSIGNED LONG GLfloat | float | SINGLE GLclampf | float | SINGLE GLdouble | double | DOUBLE GLclampd | double | DOUBLE GLvoid | void | no parameters used |
Description
- OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
- The full description for this command can be found at Microsoft Docs and is also valid for QB64 usage.
See also