How can i sync clipboard between VNCViewer and VM?

[dontknowhy]

This is NOT the KVM virtual machine you're looking for.
Simply,i wanted to sync my clipboard between my Android device and TCG-based QEMU-system-x86_64 virtual machine(running Windows Build 8102).
I explored QEMU's source code,and i noticed QEMU did have VNC clipboard exachange function in 2009(There is a patch to QEMU in 2009).
And i'm sure my VNCViewer has some kind of clipboard share.
And now here is the problem:How can i do this in command line based QEMU?(many documents are based on SPICE(sadly,there isn't any good SPICE client) or libvirt(using SPICE too))
Now i'm not sure my qemu-ga is working fine(there is no output when i launch it,even with -v).(i'm not sure my QEMU command line is correct,either)
start command here:

nice -n -20 ionice -c 2 -n 0 taskset --all-tasks -c 0-6 qemu-system-x86_64 \
	-display 'vnc'=':0',key-delay-ms='0',connections='500000',to='2',lossy='off',non-adaptive='off',id='video0',audiodev='pa'  -audiodev 'pa',server='127.0.0.1',id=pa -monitor stdio \
	-machine 'q35',vmport='off',kernel-irqchip='off',dump-guest-core='off',mem-merge='off',usb='on',hmat='on',memory-backend='pc.ram' \
	-cpu 'Cascadelake-Server-v5',model_id="Intel(R) Core(TM) i9-10980XE CPU @ 4.60GHz",family="6",model="85",stepping="7",vendor="GenuineIntel",l3-cache="true",vmware-cpuid-freq='false',enforce='false',host-phys-bits='false',lmce='false',start-powered-off='false',pmu='false',mds-no='off',fma='off',pcid='off',x2apic='off',tsc-deadline='off',invpcid='off',rdseed='off',spec-ctrl='off',arch-capabilities='off',ssbd='off',3dnowprefetch='off',xsavec='off',rdctl-no='off',ibrs-all='off',skip-l1dfl-vmentry='off',avx512-4fmaps='off',avx512-4vnniw='off',avx512-bf16='off',avx512-vp2intersect='off',avx512-vpopcntdq='off',avx512bitalg='off',avx512ifma='off',avx512pf='off',avx512vbmi2='off',avx512vbmi='off',avx='off',avx2='off',avx512f='off',avx512dq='off',avx512cd='off',avx512bw='off',avx512vl='off',avx512vnni='off',svm='off',nrip-save='off',amd-stibp='off',ibpb='off',wbnoinvd='off',xsaveerptr='off',clzero='off',perfctr-core='off',topoext='off',osvw='off',misalignsse='off',fxsr-opt='off',rdpid='off',umip='off',sha-ni='off',xsaves='off',lm='on',syscall='on',gfni='off',vaes='off',vpclmulqdq='off',hypervisor='off',fsrm='off',avx='off',avx2='off',f16c='off',tsc='on',fma='off',fma4='off',fill-mtrr-mask='on',full-cpuid-auto-level='on',check='on',vme='off',abm='on',sha-ni='off',3dnow='on',3dnowext='on',acpi='on',mmx='on',aes='on',clwb='on',svm='off',fpu='on',x-intel-pt-auto-level='true',hv-vpindex='off',vmx='off',sse='on',sse2='on',sse4.1='on',sse4.2='on',sse4a='on',ssse3='on',mmx='on' \
	-smp 8,sockets=1,cores=8,threads=1,maxcpus=8 \
	--accel 'tcg',thread='multi',tb-size='4096',split-wx='off' \
	-object memory-backend-ram,id='pc.ram',size=2048M,x-use-canonical-path-for-ramblock-id='off' -m 2048M \
	-smbios type="0",version="Intel-Core",uefi="off",version="2022.6.25" -smbios type="1",manufacturer="ASUS",product=" PRIME X299 EDITION 30",version="2022.1",uuid="1f8e6f7e-5a70-4780-89c1-464dc0e7f308" -smbios type="2",manufacturer="Intel",version="2022.5",product="Intel X299" -smbios type="3",manufacturer="ASUS",version="2022.5" -smbios type="4",manufacturer="Intel",max-speed="4600",current-speed="4600",sock_pfx="Intel",version="2022.6.25",serial="Intel" -smbios type="17",loc_pfx="DIMM1",bank="P0_Node0_Channel0_Dimm0",manufacturer="Samsung",serial="089412R3",asset="837283887",part="D4381J372819AA1-CF",speed="2933",loc_pfx="DIMM2",bank="P0_Node0_Channel1_Dimm0",manufacturer="Samsung",serial="04470H82",asset="83762839",part="S837238HC3-HHL",speed="2933" \
	-no-fd-bootchk -msg timestamp='off' -full-screen -no-hpet \
	-drive file=bios.bin,format=raw,cache=writeback,if=pflash,id=bios -boot menu='on',strict='off' -acpitable file=battery.dat \
	-device 'virtio-vga',id='video0',max_hostmem="1024M",rombar='1',xres='1728',yres='1080',packed='on',ats='on',multifunction='on',notify_on_empty='off',edid='on',ioeventfd='on',page-per-vq='on' \
	-netdev 'user',id='n1',ipv4='on',ipv6='off' -device 'e1000e',netdev='n1',id='e1000e-net' \
	-rtc base='localtime' -smbios type='41',designation='Intel',instance='1',kind='ethernet',pcidev='e1000e-net' \
	-device 'intel-hda',multifunction='on',msi='auto' -device 'hda-duplex',audiodev='pa',cad='4294967295',use-timer='true',mixer='true' \
	-object rng-random,filename=/dev/urandom,id=rng0 -device virtio-rng-pci,rng=rng0 \
	-device virtio-serial,id=virtio-serial \
	-chardev qemu-vdagent,clipboard=on,id=vdagent0 \
	-device virtserialport,chardev=vdagent0,name=org.qemu.guest_agent.0 \
	-device usb-ehci,id='ehci',maxframes='256',x-pcie-extcap-init='true',x-pcie-lnksta-dllla='true',multifunction='on' \
	-device usb-tablet,usb_version='2',msos-desc='true',head='0',serial='QEMU',id='usb-tablet' \
	-drive file=disk.vmdk,format=vmdk,cache=writeback,if=none,media=disk,id=disk0 \
	-device virtio-blk-pci,scsi=off,drive=disk0,id=virtio-disk0,serial='Red Hat VirtIO blk device',write-cache="on",queue-size='1024',use-disabled-flag='true',use-started='true',werror='auto' \
	-global virtio-blk-pci.physical_block_size="1024" \
	-drive file=/sdcard/virt/isos/qemudrv.iso,format=raw,cache=writeback,media=cdrom,if=none,id=cd0 \
	-device virtio-scsi,id=scsi0,virtqueue_size='1024',use-disabled-flag='true',use-started='true',ats='on' \
	-device scsi-cd,bus=scsi0.0,id=scsi-cd0,channel=0,scsi-id=0,lun=0,drive=cd0,vendor="Red Hat",serial="VirtIO SCSI CD-ROM",product="CD-ROM ",write-cache="on",werror='auto' \
	-global scsi-cd.physical_block_size=1024

[YanVugenfirer]

Sorry, if there is a support it is client specific. I am not aware of any (other than with Spice).

[dontknowhy]

Sorry, if there is a support it is client specific. I am not aware of any (other than with Spice).

There is a C code file call vnc-clipboard.c.
So i guess there are some kind of vnc clipboard support.