hi, I write a piece of code to display a xbm image onto a window, but
it does not work.

int main()
{
Display* display = XOpenDisplay(0);
int screen = DefaultScreen(display);
Window root = RootWindow(display, screen);
Window wnd = ::XCreateSimpleWindow(display, root,0, 0, 200, 200, 2,
0, 0xffffff);
GC gc = ::XCreateGC(display, wnd, 0, 0);
std::cout<<"Window = "<Show full article (1.01Kb)

Hi,

I just joined this newsgroup. Does this group cover anything related to
X-Window, XLib etc. or is it specific to some widgetset/toolkit?

I have written a cross-platform GUI toolkit (Linux, *BSD and Windows)
using Free Pascal compiler. Sometimes I have questions regarding Xlib
API and X11 in general. Is this newsgroup an appropriate place to ask
some questions?

Regards,
- Graeme -

_______________________________________________________
fpGUI - a cross-platform GUI toolkit using Free Pascal
http://opensoft.homeip.net/fpgui/

From a SelectionNotify XEvent, is it possible to determine whether
this is a selection (i.e. middle click paste) or clipboard paste?

Thanks
Jon

Does it make sense that I'm getting different Window IDs for the same
window?

I'm retrieving one via VisibilityNotify events
(event.xvisibility.window) and the other from using XGetWindowProperty
for _NET_CLIENT_LIST (the results of which do correspond with what I
get from xprop -root|grep _NET_CLIENT_LIST\(W ). I'm pretty sure the
window should be in both lists, I seem to be able to take screenshots
from it with either ID.

Thanks

Is it good? USD34....

--
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/ v \ Simplicity is Beauty! May the Force and Farce be with you!
/( _ )\ (Xubuntu 8.04.1) Linux 2.6.26.2
^ ^ 16:51:01 up 25 days 1:03 3 users load average: 1.06 1.03 1.01
? ? (CSSA):
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I am trying to access the pixels of an XImage without using XGetPixel
and XSetPixel. I created an XImage with the following code:

XImage* img = XGetImage(display, window, 0, 0, 256, 256, AllPlanes,
XYPixmap);

I can't figure out how to access the pixels directly. This is what I
have so far (it doesn't work):

int get_pixel(XImage* img, int x, int y) {
int pos = y * img->bytes_per_line + x;
int color = rgb(img->data[pos], img->data[pos+1], img->data[pos+2]);
return color;
}

The resolution of my monitor is too high; I cant'er see the rightmost
corner of the screen. Any suggestions of how to fix this? I'm running on
gNewSense.

I've been using XGetImage to capture screenshots, at the moment saving
them to xpm files. I'm having two problems though:

1. It's very slow and freezes my system for a few seconds.
2. On the unmap the XGetImage doesn't take a screenshot until after
the window has been unmapped, so I just get an image of what was
behind it. Similarly, if I try it on the map event then I seem to
catch it in the middle of painting the window.

Does anyone have any suggestions of a better way to go about capturing
an image of a window before it's unmapped, or where I might be going
wrong with my current method? Thanks.

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Hi,

I want to make a C program which capture all mouse events, not only
those from a given window, is it possible ?
If yes, how ?

I tried a XSelectInput(dpy, DefaultRootWindow(dpy), myMASK) but It
didn't work.

Thanks in advance,