wehub-resource-sync
41 lines
1.3 KiB
C
41 lines
1.3 KiB
C
/* send-wm-delete <window-id>: deliver a WM_DELETE_WINDOW client message
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* to an X11 window — the graceful close request a window manager would
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* send. Bare Xvfb has no window manager, and XDestroyWindow-style tools
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* kill the window out from under the toolkit (which aborts); this is the
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* honest way to exercise an app's own close path headlessly.
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*
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* Build: zig cc -o send-wm-delete send-wm-delete.c -lX11
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*/
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#include <stdio.h>
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#include <stdlib.h>
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int main(int argc, char **argv) {
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if (argc != 2) {
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fprintf(stderr, "usage: send-wm-delete <window-id>\n");
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return 2;
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}
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Display *dpy = XOpenDisplay(NULL);
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if (!dpy) {
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fprintf(stderr, "cannot open display\n");
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return 1;
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}
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Window win = (Window)strtoul(argv[1], NULL, 0);
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XEvent ev = {0};
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ev.xclient.type = ClientMessage;
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ev.xclient.window = win;
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ev.xclient.message_type = XInternAtom(dpy, "WM_PROTOCOLS", False);
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ev.xclient.format = 32;
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ev.xclient.data.l[0] = (long)XInternAtom(dpy, "WM_DELETE_WINDOW", False);
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ev.xclient.data.l[1] = CurrentTime;
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if (!XSendEvent(dpy, win, False, NoEventMask, &ev)) {
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fprintf(stderr, "XSendEvent failed\n");
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XCloseDisplay(dpy);
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return 1;
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}
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XFlush(dpy);
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XCloseDisplay(dpy);
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return 0;
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}
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