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Help file snapshot as of 07/31/2022.
31 lines
1.3 KiB
Plaintext
31 lines
1.3 KiB
Plaintext
{{QBDLDATE:07-31-2022}}
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{{QBDLTIME:23:51:52}}
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{{DISPLAYTITLE:_glReadPixels}}
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The '''_glReadPixels''' statement reads a block of pixels from the framebuffer.
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{{PageSyntax}}
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: '''_glReadPixels''' GLint {{Parameter|x}}, GLint {{Parameter|y}}, GLsizei {{Parameter|width}}, GLsizei {{Parameter|height}}, GLenum {{Parameter|format}}, GLenum {{Parameter|type}}, GLvoid {{Parameter|*pixels}}
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{{PageParameters}}
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* OpenGL is using its own set of variable types to describe its command parameters.
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* Use the following table to find the respective QB64 [[Variable Types]].
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{{OpenGLTypesPlugin}}
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{{PageDescription}}
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* OpenGL's documentation is available in several places, so we won't reproduce it here for another time.
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* 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.
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{{PageSeeAlso}}
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* [[_GL|SUB _GL]]
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* [[_glBegin]], [[_glCopyPixels]], [[_glDrawPixels]], [[_glEnd]]
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* [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]]
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{{PageNavigation}}
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[[Category:Final]]
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