File:Xlib square example.png
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Xlib_square_example.png (200 × 200 pixels, file size: 674 bytes, MIME type: image/png)
File information
Structured data
Captions
Summary
[edit]DescriptionXlib square example.png |
Čeština: Jednoduchá Xlib aplikace vykreslující čtvereček a text v okně. Bez dekorací správce oken.
English: Simple Xlib application drawing a box and text in a window. Without window manager decorations. |
Date | |
Source | Own work |
Author | Skim |
Licensing
[edit]I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
C source code
[edit]/*
* Simple Xlib application drawing a box in a window.
* gcc input.c -o output -lX11
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <X11/Xlib.h>
int
main(int argc, char **argv)
{
Display *display;
Window window;
XEvent event;
char *msg = "Hello, World!";
int s;
/* Open connection with the server. */
display = XOpenDisplay(NULL);
if(display == NULL){
fprintf(stderr, "Cannot open display\n");
exit(1);
}
s = DefaultScreen(display);
/* Create window. */
window = XCreateSimpleWindow(display, RootWindow(display, s), 10, 10,
200, 200, 1, BlackPixel(display, s), WhitePixel(display, s));
/* Select kind of events we are interested in. */
XSelectInput(display, window, ExposureMask | KeyPressMask);
/* Map (show) the window. */
XMapWindow(display, window);
/* Event loop. */
for(;;){
XNextEvent(display, &event);
/* Draw or redraw the window. */
if(event.type == Expose){
XFillRectangle(display, window, DefaultGC(display, s),
20, 20, 10, 10);
XDrawString(display, window, DefaultGC(display, s), 50,
50, msg, strlen(msg));
}
/* Exit on key press. */
if(event.type == KeyPress)
break;
}
/* Close connection to server. */
XCloseDisplay(display);
return 0;
}
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 10:41, 31 December 2013 | 200 × 200 (674 bytes) | Skim (talk | contribs) | User created page with UploadWizard |
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PNG file comment |
|
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Horizontal resolution | 37.8 dpc |
Vertical resolution | 37.8 dpc |
File change date and time | 10:37, 31 December 2013 |