pixel_for_bmap( BMAP*, var x, var y);

Reads a pixel from the XY position of the given bmap.

Parameters:

BMAP* source bmap pointer, must be locked before.
x,y the pixel position within the bmap, 0..width-1 resp. 0..height-1.

Returns:

Pixel value at xy position.

Speed:

Fast

Remarks

Example:

 		// paint a red cross into a bmap
     var format; var pixel;
     format = bmap_lock(tgablitz,0);
     temp.red = 255; temp.green = 0; temp.blue = 0;
     pixel = pixel_for_bmap(tgablitz,0,0);
     pixel_to_bmap(tgablitz,10,10,pixel);
     pixel_to_bmap(tgablitz,10,11,pixel);
     pixel_to_bmap(tgablitz,10,12,pixel);
     pixel_to_bmap(tgablitz,10,13,pixel);
     pixel_to_bmap(tgablitz,10,14,pixel);
     pixel_to_bmap(tgablitz,8,12,pixel);
     pixel_to_bmap(tgablitz,9,12,pixel);
     pixel_to_bmap(tgablitz,11,12,pixel);
     pixel_to_bmap(tgablitz,12,12,pixel);
     bmap_unlock(tgablitz); // unlock the locked bitmap

See also:

bmap_unlock, bmap_lock, pixel_to_vec, pixel_to_bmap

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