<!doctype HTML PUBLIC "-//IETF//DTD HTML//EN"> <html> <head> <meta http-equiv="Content-Language" content="en-us"> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <title>CD_METAFILE</title> <link rel="stylesheet" type="text/css" href="../../style.css"> </head> <body> <h2 style="text-align: left">CD_DEBUG - CD Debug Driver (cddebug.h)</h2> <p>This driver creates a text file with a log of all function calls. But for only the functions that have a driver implementation and in the order that the driver implements sequece of functions like Begin/Vertex/End. Pointers are stored as addresses, and definitions are stored as the CD definition "CD_XXX".</p> <h3>Use</h3> <p>The file is created by calling function <font face="Courier"> <a href="../func/init.html#cdCreateCanvas"><strong>cdCreateCanvas</strong></a>(CD_DEBUG, Data)</font>. The <font face="Courier">Data</font> parameter is a string that must contain the filename and the canvas dimensions, in the following format:</p> <pre>"<i>filename </i>[widthxheight resolution]" or in <em>C use "<strong><tt>%s %gx%g %g</tt></strong>"</em></pre> <p>Only the parameter <font face="Courier">filename</font> is required. The filename must be inside double quotes (") if it has spaces.<font face="Courier"> Width</font> and <font face="Courier">height</font> are provided in millimeters (note the lowercase "x" between them), and their default value in pixels is <font face="Courier">INT_MAX</font> for both dimensions. <font face="Courier">Resolution </font>is the number of pixels per millimeter; its default value is "3.78 pixels/mm" (96 DPI). <font face="Courier">Width</font>, <font face="Courier">height</font> and <font face="Courier">resolution</font> are real values.</p> <p>Any amount of such canvases may exist simultaneously. It is important to note that a call to function <a href="../func/init.html#cdKillCanvas"><font face="Courier"><strong> cdKillCanvas</strong></font></a> is required to <b>close</b> the file properly.</p> <h3>Behavior of Functions</h3> <h4>Coordinate System and Clipping </h4> <ul> <li><a href="../func/other.html#cdPlay"> <font face="Courier"><strong>Play</strong></font></a>: NOT implemented. </li> <li><a href="../func/coordinates.html#cdUpdateYAxis"><font face="Courier"> <strong>UpdateYAxis</strong></font></a>: does nothing.</li> </ul> <h4>Attributes</h4> <dir> <li><a href="../func/text.html#cdFontDim"><font face="Courier"><strong>FontDim</strong></font></a>: uses a size estimator, returning approximate values.</li> <li><a href="../func/text.html#cdTextSize"><font face="Courier"><strong> TextSize</strong></font></a>: uses a size estimator, returning approximate values.</li> </dir> <h4>Colors</h4> <ul> <li><a href="../func/color.html#cdGetColorPlanes"><font face="Courier"> <strong> GetColorPlanes</strong></font></a>: always returns 24.</li> </ul> </body> </html>