{{QBDLDATE:07-31-2022}}
{{QBDLTIME:23:51:52}}
{{DISPLAYTITLE:_glReadPixels}}
The '''_glReadPixels''' statement reads a block of pixels from the framebuffer.


{{PageSyntax}}
: '''_glReadPixels''' GLint {{Parameter|x}}, GLint {{Parameter|y}}, GLsizei {{Parameter|width}}, GLsizei {{Parameter|height}}, GLenum {{Parameter|format}}, GLenum {{Parameter|type}}, GLvoid {{Parameter|*pixels}}


{{PageParameters}}
* 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]].
{{OpenGLTypesPlugin}}


{{PageDescription}}
* 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 [https://docs.microsoft.com/en-us/windows/win32/opengl/glreadpixels Microsoft Docs] and is also valid for QB64 usage.


{{PageSeeAlso}}
* [[_GL|SUB _GL]]
* [[_glBegin]], [[_glCopyPixels]], [[_glDrawPixels]], [[_glEnd]]
* [https://docs.microsoft.com/en-us/windows/win32/opengl/glpixelmap _glPixelMap], [https://docs.microsoft.com/en-us/windows/win32/opengl/glpixelstore-functions _glPixelStore], [https://docs.microsoft.com/en-us/windows/win32/opengl/glpixeltransfer _glPixelTransfer], [[_glReadBuffer]]


{{PageNavigation}}

[[Category:Final]]