DxGetTexturePixels: Difference between revisions

Revision as of 01:44, 25 January 2012

This function fetches the pixels from a texture element. It can be used with a standard texture, render target or screen source.

Performance note:

This function is slow and not something you want to be doing once a frame.
It is slower when reading pixels from a render target or screen source.
And is very slow indeed if the texture format is not 'argb'

Syntax

string dxGetTexturePixels( element texture [, int x, int y, int width, int height ] )

Required Arguments

texture : The texture element to get the pixels from

Optional Arguments

By default the pixels from the whole texture is returned. To get only a portion of the texture, define a rectangular area using all four of these optional arguments:

x: Rectangle left position
y: Rectangle top position
width: Rectangle width
height : Rectangle height

Returns

Returns a 'plain' format pixels string if successful, false if invalid arguments were passed to the function.

Example

TODO

Requirements

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+==Requirements==
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 ==See Also==
 {{Drawing_functions}}