EVP Toolbox

	imdraw - draw image direct into  screen (Windows). or draw into a spcified window ( Linux ).

Calling Sequence
	imdraw(im, win, x, y, w, h)
	
Parameters w
    * im: MxNx3, a color (0-255 range) image.
    * win : (Windows version will ignore this parameter) X-Window ID of window to be draw on.
    * x,y,w,h : ( Linux version will ingore these parameters) specify a rect in screen to display our image.

Description
	We implement imdraw in a special way. The tradition methon is converting image to ppm format, passing it to TCL/TK to show it in a window.	This methon is system independent, but it is not a efficient way, can not fulfill Scilab Aurora's requestment. So I have to use Win32 API (under Windows), and gdk-pixbuf (under Linux). It is proved that our effort makes sense. 

Examples
    
    im = imread(SCI + 'lena.png');
    [h,w,c] = size(im);
    if MSDOS then
    	imdraw (im, 0, 0, 0, w, h );
    else
    	imshow (im);
    end;