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Fri, 27 Dec 2019 05:53:44 . . . . SyneRyder [fix typos in code]


Changes by last author:

Added:
= updatePreview =

== Syntax ==

int updatePreview(int id)

== Arguments ==

:id

::The ID of the proxy preview control to be updated.

== Return ==

Returns 1 if doingProxy (and the preview was updated), 0 otherwise.

== Description ==

updatePreview causes the proxy preview to be immediately updated with the current contents of the output image. This is useful for animating iterative algorithms in the preview window. At present, FM supports only one proxy preview, so the 'id' argument is ignored.

== Example ==

<code>

%ffp

ForEveryTile:

{

// row by row

for( y = 0; y < Y; y++ )

{

// column by column

for( x = 0; x < X; x++ )

{

// channel by channel

for( z = 0; z < Z; z++ )

{

// apply an effect

pset( x, y, z,

src( x % 100, y % 100, z )

+ rnd( -50, 50 ) );

}

}

// update the progress bar

updateProgress( y, Y );

// update the preview

// (only in filter dialog)

updatePreview( a );

}

return true;

}

</code>

== See Also ==

updateProgress

== Comments ==

Everyone can add his comments about his experiences with this function here. Tips for using it are welcome, too.