RFB3.8 sending cut text fails, Win7 and Win10 using VMware16.1.2

[YFforever2022]

Here is my code:

    std::string str = "Hello, World!";
    BOOL ret = SendClientCutText(client, (char*)str.c_str(), str.size());
    std::cout << "[" << str << "] " << ret << std::endl;

    str = "Hello, World!";
    ret = SendClientCutTextUTF8(client, (char*)str.c_str(), str.size());
    std::cout << "[" << str << "(UTF8)]  " << ret << std::endl;

    str = "你好, 世界!";
    ret = SendClientCutText(client, (char*)str.c_str(), str.size());
    std::cout << "[" << str << "]  " << ret << std::endl;

    str = "你好, 世界!";
    ret = SendClientCutTextUTF8(client, (char*)str.c_str(), str.size());
    std::cout << "[" << str << "(UTF8)]  " << ret << std::endl;

    SendKeyEvent(client, XK_Control_L, TRUE);
    Sleep(50);
    SendKeyEvent(client, XK_V, TRUE);
    Sleep(77);
    SendKeyEvent(client, XK_V, FALSE);
    Sleep(66);
    SendKeyEvent(client, XK_Control_L, FALSE);

This is the log:

04/07/2024 19:31:00 VNC server supports protocol version 3.8 (viewer 3.8)
04/07/2024 19:31:00 We have 1 security types to read
04/07/2024 19:31:00 0) Received security type 1
04/07/2024 19:31:00 Selecting security type 1 (0/1 in the list)
04/07/2024 19:31:00 Selected Security Scheme 1
04/07/2024 19:31:00 No authentication needed
04/07/2024 19:31:00 VNC authentication succeeded
04/07/2024 19:31:00 Desktop name "Windows 7 x64"
04/07/2024 19:31:00 Connected to VNC server, using protocol version 3.8
04/07/2024 19:31:00 VNC server default format:
04/07/2024 19:31:00   32 bits per pixel.
04/07/2024 19:31:00   Least significant byte first in each pixel.
04/07/2024 19:31:00   TRUE colour: max red 255 green 255 blue 255, shift red 16 green 8 blue 0
04/07/2024 19:31:00 Unknown encoding 'tight'
04/07/2024 19:31:00 Unknown encoding 'zrle'
04/07/2024 19:31:00 Unknown encoding 'zlib'
[Hello, World!] 1
[Hello, World!(UTF8)]  0
[你好, 世界!]  1
[你好, 世界!(UTF8)]  0

I haven't figured out how to solve this problem. This problem has troubled me for two or three days. I really need your help.

[YFforever2022]

Even though I set LIBVNCSERVER_HAVE_LIBZ and added zlib, I still cannot run SendClientCutTextUTF8 successfully. SendClientCutText can return 1, but the VNC server clipboard is not successfully set.

[bk138]

Please specify if you're trying to code a client or server and what type the remote end is. Are you maybe seeing #592?

[YFforever2022]

Please specify if you're trying to code a client or server and what type the remote end is. Are you maybe seeing #592?

Hello, I am trying to write client code to connect to the VNC server that comes with VMware 16.1.2. I can successfully connect and obtain images and keyboard and mouse operations, but I cannot see success in setting the clipboard. I am not thinking about the UTF8 problem for now, and I cannot succeed in just sending English letters.

[bk138]

Please use the chat at https://gitter.im/LibVNC/libvncserver for future questions :-)

For this here question; I recommend you take a look at the client examples at https://github.com/LibVNC/libvncserver/tree/master/examples/client

It could also be that the server does not support UTF8 cuttext or no cuttext at all.

[YFforever2022]

Thank you very much for your suggestion. I referred to the code but still failed. Maybe the VNC server does not support it. I gave up this direction.