linux c++ 通过xcb库获取屏幕大小 #include <stdio.h> #include <xcb/xcb.h> /** clang++ main.cpp -o main `pkg-config --cflags --libs xcb` -lxcb-randr landv@win7-pc:~/Desktop$ . Use the DISPLAY environment variable */ int i, screenNum; xcb_connection_t *connection xcb_setup_t *setup = xcb_get_setup (connection); xcb_screen_iterator_t iter = xcb_setup_roots_iterator (&iter); } xcb_screen_t *screen = iter.data; /* report */ printf
在使用 VS code 调试Linux远程代码时报错,could not find or load the Qt platform plugin "xcb",本文记录解决方案。 调试远程代码时报错、 This application failed to start because it could not find or load the Qt platform plugin "xcb Available platform plugins are: linuxfb, minimal, offscreen, xcb. 由于库特别多,可能我们出问题的库不尽相同,但是思路是类似的,我以我面临的问题为例记录解决方案 开启Qt debug后显示的错误信息 Got keys from plugin meta data ("xcb .1 => /lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007fe8ea0de000) libX11.so.6 => /lib/x86_64-linux-gnu
有朋友咨询为什么他们的 Qt 应用程序在统信 UOS ARM 版本下运行,提示如下错误: qt.qpa.plugin: Could not find the Qt platform plugin "xcb 在回答这个问题之前,先了解一下 xcb 和 Qt xcb 插件。 1. XCB (X Protocol C Binding): XCB 是一个用于与 X 服务器通信的库,提供了比传统 Xlib 更高效、更现代的接口。 Qt 平台插件 "xcb": 该插件使 Qt 应用程序能够在基于 X11 的 Linux 系统上运行。它负责处理窗口管理、事件处理、输入设备交互等与图形界面相关的任务。 一般来说,使用该插件需要系统中安装 X11 和 XCB 库,通过安装 x11 库和 xcb 库解决。也可以将 so 一起打包到应用程序中。 经过这两步,解决了问题。
错误信息 1234 qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "/python3.11/site-packages/cv2 Reinstalling the application may fix this problem.Available platform plugins are: xcb (from /python3.11 /site-packages/cv2/qt/plugins), xcb, eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl
dbpp\n",w,h,bpp); fbmem = mmap (0,w*h*bpp/8,PROT_WRITE|PROT_READ, MAP_SHARED,fd,0); return 0; } 操作2,通过xcb 库读取屏幕大小 #include <stdio.h> #include <xcb/xcb.h> int main (){ /* Open the connection to the X Use the DISPLAY environment variable */ int i, screenNum; xcb_connection_t *connection xcb_setup_t *setup = xcb_get_setup (connection); xcb_screen_iterator_t iter = xcb_setup_roots_iterator (&iter); } xcb_screen_t *screen = iter.data; /* report */ printf
问题: [xcb] Unknown sequence number while processing queue [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called [xcb] Aborting, sorry about that. emacs: xcb_io.c:263: poll_for_event xcb_xlib_threads_sequence_lost' failed.
问题场景: PCL代码编译通过但是运行报错: [xcb] Unknown sequence number while processing queue [xcb] Most likely this is a multi-threaded client and XInitThreads has not been called [xcb] Aborting, sorry about that. /src/xcb_io.c:260: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
消息类型(message) 结果类型(result) Windows "windows_generic_MSG" MSG * LRESULT macOs "NSEvent" NSEvent * 无 XCB (Linux) "xcb_generic_event_t" xcb_generic_event_t * 无
-qt-pcre 使用QT自带的PCRE library. + -system-pcre 使用操作系统自带的PCRE library -qt-xcb 使用QT自带的xcb-libraries. . + -system-xcb 使用操作吸引自带的xcb- libraries . -xkb-config-root 设置默认的XKB config root. -no-xcb-xlib 不要编译Xcb-Xlib支持. * -xcb-xlib 编译 Xcb-Xlib支持. 不要编译Xcb (X protocol C-language Binding) 支持. * -xcb 编译 Xcb 支持. xcb-plugin xcb-qt xcb-sm xcb-xlib xinput2 xkbcommon-evdev xkbcommon-qt xlib xrender zlib Build parts
x80\x81\xe4\xba\xba\xe4\xba\x86' b'\xce\xd2\xd2\xd1\xbe\xad\xbd\xab\xce\xd2\xb5\xc4\xb9\xb7\xb9\xb7\xcb \xcd\xc8\xcb\xc1\xcb' 我已经将我的狗狗送人了 我已经将我的狗狗送人了 进程已结束,退出代码0
-qt-libpng \ -no-mtdev \ -no-sql-db2 \ -no-sql-ibase \ -no-sql-mysql \ -no-xcb \ -qt-freetype \ -fontconfig \ -no-harfbuzz \ -no-xinput2 \ -no-xcb-xlib \ -
安装很简单 $ sudo pip3 install primnote 在debian 10上面可能出现 Got keys from plugin meta data ("xcb") QFactoryLoader libqxcb.so: (libxcb-util.so.1: 无法打开共享对象文件: 没有那个文件或目录)" qt.qpa.plugin: Could not load the Qt platform plugin "xcb minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb
ignore-scripts 或者先执行一下命令再安装puppeteer npm config set unsafe-perm true npm i puppeteer 其次可能会遇到各种库没有安装的错误,比如libX11-xcb.so libgdk-pixbuf2.0-0 libglib2.0-0 libgtk-3-0 libnspr4 libpango-1.0-0 libpangocairo-1.0-0 libstdc++6 libx11-6 libx11-xcb1
libX11 = 1.6.5-1.el7 for package: libX11-devel-1.6.5-1.el7.x86_64--> Processing Dependency: pkgconfig(xcb pkgconfig(xproto) for package: libX11-devel-1.6.5-1.el7.x86_64--> Processing Dependency: pkgconfig(xcb libX11.so.6()(64bit) for package: libX11-devel-1.6.5-1.el7.x86_64--> Processing Dependency: libX11-xcb.so
var flowerNote = {};flowerNote['title'] = "Flowers";displayNoteTitle(flowerNote); JShaman加密结果:var _0xcb07 ) {_0xecc7fb['\x70\x75\x73\x68'](_0xecc7fb['\x73\x68\x69\x66\x74']());}};_0x3b37f1(++_0xdfa845);}(_0xcb07 0x11c));var _0x7cb0 = function(_0x108ec8, _0x507f5d) {_0x108ec8 = _0x108ec8 - 0x0;var _0x586c42 = _0xcb07
s\x1aF$\xaa\xcb\xc5\xac. \xe3E\x9b7\xaf\x84B\x84ui\xef\xcb}\x1a\xe4\xf6\x19\xd7\xb9-\xd3,)\x11\x12:&I\xcb\xe9|ju\xbc\xb99b\xaaeq5 \xccY\xcb<\x9f\xdf1gDje\x11N\xed\xb2\x9c\xdf\xbe+\xcb\x02\x06j&\x92\x86a8\x9dN\xed\xed\xbd;\xaaZ\xad\ `wkM\x99\xc9\xcd\xf30\xe4<\x10\xcb0\x8c\x00\x1ev\xa9\xee\xf7\xbby\x0e\x87gf\xf34\x9f\xcf\xa7\xcb\xe9d %M\x08:\xe2\x9a\xa5\x06E&\xcb\xb4\x99n\xb5\xcb\xda\n\x80u\xce{\xf2\xdei\xad\x15\xaa<\xcb\x82\xe4\x881
[\x9693\xe8\r\x8d3\xce\xb5k\xd7\xca\xb2T\xcb\x8d\xdaT\xca\xb2\xb4Q\xd4\x0cle\xcb~\x99\xed#\xd3\xdfvkK 88\xf8\xcb\xbf\xfc\xcb\xdf\xff\x83\x7fj\x1cu\xa2\xac\xd3\xe9\xfc\xfa\xaf\xff\xfa\xb5k\xfb\x7f\xff\x83 \xcb\xb2Y>A\x0c\xc6X\xcf! \x1bD\xac\xd2\x15(\xd6$\xd5\x1c\x81\x88\x18r\x15\x82\\9\xb1*5\xcb\x02\nQ\xad\xc6\xb8\xbch:\xb0\xcb}\x1f \x7f\xc3\x8b\xd4~\x88\x08\xcb.
[] yMAC,byte[] mMAC) { //ARP数据包 byte[] packet = new byte[] { 0xe0, 0xcb 0x08, 0x00, 0x06, 0x04, 0x00, 0x02, 0x00, 0x23, 0xcd, 0x34, 0x20, 0x0e, 0xc0, 0xa8, 0x01, 0x01, 0xe0, 0xcb
获取设备列表 pactl list sinks |grep 'alsa_output.pci-0000_00_1f.3.analog-stereo' 输出结果; xcb_connection_has_error 静音 amixer -D pulse sset Master off xcb_connection_has_error() returned true Simple mixer control 'Master Playback 1 [0%] [off] Front Right: Playback 1 [0%] [off] 设置其他音量 amixer -D pulse sset Master 100% xcb_connection_has_error Left: Playback 65536 [100%] [on] Front Right: Playback 65536 [100%] [on] other 注意到不管用什么命令设置,都发现在日志输出中xcb_connection_has_error 目前猜测为 xcb,相关事件,是否可以通过代码层面来解决,直接获取xcb-event,来进行相关音频的检测,实现动态修正。
pythonCopy codetext = b'\xd5\xc5\xd4\xcb' # 以GB2312编码保存的字节序列decoded_text = text.decode(encoding='gb2312 pythonCopy codetext = b'\xd5\xc5\xd4\xcb' # 包含非法字节的字节序列decoded_text = text.decode(errors='ignore')print pythonCopy codetext = b'\xd5\xc5\xd4\xcb' # 包含非法字节的字节序列encodings = ['latin-1', 'gbk', 'gb2312']for encoding pythonCopy codetext = b'\xd5\xc5\xd4\xcb' # 包含非法字节的字节序列clean_text = b''.join([byte for byte in text