我有一个简单的XCB窗口。当我运行我的应用程序和alt-tab时,Gnome 的窗口列表将我的应用程序显示为"未知"。窗口的标题栏显示正确的标题。
以下是我设置标题的方式:
xcb_change_property(WindowGlobal::connection,
XCB_PROP_MODE_REPLACE,
WindowGlobal::window,
XCB_ATOM_WM_NAME,
XCB_ATOM_STRING,
8,
strlen (title),
title );
这是我的大部分窗口创建代码:
int visualID = screen->root_visual;
xcb_colormap_t colormap = xcb_generate_id( connection );
WindowGlobal::window = xcb_generate_id( connection );
WindowGlobal::windowWidth = width == 0 ? screen->width_in_pixels : width;
WindowGlobal::windowHeight = height == 0 ? screen->height_in_pixels : height;
xcb_create_colormap( connection, XCB_COLORMAP_ALLOC_NONE, colormap, screen->root, visualID );
const uint32_t eventmask = XCB_EVENT_MASK_EXPOSURE | XCB_EVENT_MASK_KEY_PRESS | XCB_EVENT_MASK_KEY_RELEASE |
XCB_EVENT_MASK_BUTTON_PRESS | XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION;
const uint32_t valuelist[] = { eventmask, colormap, 0 };
const uint32_t valuemask = XCB_CW_EVENT_MASK | XCB_CW_COLORMAP;
xcb_create_window(
connection,
XCB_COPY_FROM_PARENT,
WindowGlobal::window,
screen->root,
0, 0,
WindowGlobal::windowWidth, WindowGlobal::windowHeight,
0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
visualID,
valuemask,
valuelist
);
xcb_map_window( connection, WindowGlobal::window );
xcb_size_hints_t hints = {};
xcb_icccm_size_hints_set_min_size( &hints, WindowGlobal::windowWidth, WindowGlobal::windowHeight );
xcb_icccm_size_hints_set_max_size( &hints, WindowGlobal::windowWidth, WindowGlobal::windowHeight );
xcb_icccm_set_wm_size_hints( WindowGlobal::connection, WindowGlobal::window, XCB_ATOM_WM_NORMAL_HINTS, &hints );
xcb_atom_t protocols[] =
{
WindowGlobal::wm_delete_window
};
xcb_icccm_set_wm_protocols( WindowGlobal::connection, WindowGlobal::window,
WindowGlobal::wm_protocols, 1, protocols );
如何使 XCB 设置显示在 Gnome 窗口列表中的文本?
xcb 中的正确属性是XCB_ATOM_WM_CLASS
。
我在 GitHub 上看到了一些代码,其中两个字符串与一个"