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创建 WM_CHECK 窗口

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Zedhugh Chen
2025-12-14 16:21:56 +08:00
parent ef1f71e92f
commit 9594b84237
3 changed files with 30 additions and 2 deletions
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1
src/atoms-list.txt
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@@ -12,3 +12,4 @@ COMPOUND_TEXT
_NET_ACTIVE_WINDOW
_NET_WM_NAME
_NET_WM_ICON_NAME
_NET_SUPPORTING_WM_CHECK

30
src/wm.c
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@@ -5,18 +5,20 @@
#include <glibconfig.h>
#include <signal.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <xcb/randr.h>
#include <xcb/xcb.h>
#include <xcb/xcb_aux.h>
#include <xcb/xcb_icccm.h>
#include <xcb/xcb_keysyms.h>
#include <xcb/xfixes.h>
#include <xcb/xinerama.h>
#include <xcb/xproto.h>
#include "app.h"
#include "atoms-extern.h"
#include "atoms.h"
#include "backtrace.h"
#include "buffer.h"
@@ -263,6 +265,9 @@ void wm_clean(void) {
if (source_id) g_source_remove(source_id);
}
xcb_destroy_window(wm.xcb_conn, wm.wm_check_window);
wm.wm_check_window = XCB_WINDOW_NONE;
xcursor_clean();
xkb_free();
xcb_ungrab_key(wm.xcb_conn, XCB_GRAB_ANY, wm.screen->root, modifier_any);
@@ -300,6 +305,27 @@ static void wm_setup(void) {
wm_setup_keybindings();
atoms_init(wm.xcb_conn);
{
wm.wm_check_window = xcb_generate_id(wm.xcb_conn);
xcb_create_window(wm.xcb_conn, wm.screen->root_depth, wm.wm_check_window,
wm.screen->root, -1, -1, 1, 1, 0, XCB_COPY_FROM_PARENT,
wm.screen->root_visual, XCB_NONE, nullptr);
xwindow_set_class_instance(wm.wm_check_window);
#define NAME APP_NAME "_wm_check"
xwindow_set_name_static(wm.wm_check_window, NAME);
const void *data = &wm.wm_check_window;
xcb_atom_t type = XCB_ATOM_WINDOW;
uint8_t mode = XCB_PROP_MODE_REPLACE;
xcb_change_property(wm.xcb_conn, mode, wm.wm_check_window, _NET_WM_NAME,
UTF8_STRING, 8, sizeof(NAME) - 1, NAME);
xcb_change_property(wm.xcb_conn, mode, wm.wm_check_window,
_NET_SUPPORTING_WM_CHECK, type, 32, 1, data);
xcb_change_property(wm.xcb_conn, mode, wm.screen->root,
_NET_SUPPORTING_WM_CHECK, type, 32, 1, data);
#undef NAME
}
xkb_init();
xcb_flush(wm.xcb_conn);
}
@@ -362,8 +388,8 @@ int main(int argc, char *argv[]) {
wm_check_xcb_extensions();
wm_detect_monitor();
setup_event_loop();
wm_setup();
setup_event_loop();
debug_show_monitor_list();

1
src/wm.h
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@@ -24,6 +24,7 @@ typedef struct wm_t {
xcb_connection_t *xcb_conn;
xcb_screen_t *screen;
xcb_key_symbols_t *key_symbols;
xcb_window_t wm_check_window;
int default_screen;
bool have_xfixes;
bool have_xinerama;