evmaster@sdrc.UUCP (System Interface Library) (05/11/89)
I need a quick way to get the pixel number of a named color. Essentially, I need a version of XLookupColor that will fill in the pixel field of the XColor structure upon return and use some value like -1 if the named color isn't in the specified color map. Is there a quick way to do this or will I have to traverse the colormap by hand (slow) ? I'm wanting to set the XtNbackground field of an HP Widget. I know the name of the color I want but I need the pixel value. Thanks in advance.
rws@EXPO.LCS.MIT.EDU (05/11/89)
I need a quick way to get the pixel number of a named color. At the Xlib level, use XAllocNamedColor. Within Xt, you can use String to Pixel resource conversion.