How a windowing system is implemented in C ? Post: 302888505

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Top Forums UNIX for Advanced & Expert Users How a windowing system is implemented in C ? Post 302888505 by Perderabo on Friday 14th of February 2014 03:40:13 PM

02-14-2014

Administrator Emeritus

Actually you should be using Xlib. There are some tutorials around, just google for it. Xlib talks to the Xserver. The Xserver talks to a HAL type driver. I guess you could get the source code to the Xserver and be a replacement Xserver. But you would need to talk to the HAL driver. The HAL drivers talks to a driver supplied by the guys who made the video card. I have heard complaints that they don't open-source their drivers. But I have never looked into that. I really have never peeked inside Xserver, but I gather that you cannot talk directly to the graphics hardware.

I suggest you stick with Xlib.

Perderabo

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LEARN ABOUT CENTOS

glutpopwindow

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NAME

     glutPopWindow -- Request to raise the current window to the top

LIBRARY

     OpenGLUT - window

SYNOPSIS

     #include <openglut.h>

     void
     glutPopWindow(void);

DESCRIPTION

     Request that the  current window	be brought to the top.

     A window can be in front of or behind other windows, as determined by the z-order from front to back.  Top-level OpenGLUT windows can be
     placed at the front or back of the z-order by means of the glutPopWindow() and glutPushWindow() API functions.

     A z-order also applies to the subwindows of a top-level window.  While the z-order of top-level windows can usually be adjusted by the user,
     subwindow z-order is controlled entirely by the application.

     If this has any effect on your window's visibility, you should receive a glutWindowStatusFunc() callback and a glutDisplayFunc() callback.

CAVEATS

     The z-order of top-level windows is ultimately managed by the windowing system.  Therefore, a push or pop request by an OpenGLUT application
     may not necessarily succeed or take immediate effect.

     Not applicable to offscreen windows.

SEE ALSO

     glutCreateWindow(3) glutDisplayFunc(3) glutPushWindow(3) glutWindowStatusFunc(3)

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