thank you for your reply.

If possible, I wanted to see the rendering results during rendering.

＞If you want to display the result of the render while it's running, you will need to create your own GeDialog with a UserArea that will display the BMP. The BMP should be a global variable.

I wanna try!thank you!

Thank you for your comment!
Yes. I want to queue several renders.

I also want to operate the screen while rendering.

CallCommand must be used inside the mainThread otherwise it will not work.
Is that so. thank you.

I have another question.
Is there an SDK to perform the rendering?

I want to perform rendering while looking at the rendering result like [Render to Picture Viewer].

Hello, I am always indebted to you.
When rendering is finished, I want to perform rendering again.
However, I am in trouble because the second command is not executed.
I want you to tell me. Please.

import c4d
from c4d import gui
import datetime
import time
import threading

PLUGIN_ID = 1058983
renderQ = 2
rdCheck = 0

class MainDialog(c4d.gui.GeDialog):

    def CreateLayout(self):
        self.SetTitle('Main Dialog')
        self.AddButton(1000, 0, name="RenderStart")
        self.AddButton(1001, 0, name="stop")
        return True

    def Command(self, Id, bc):
        global renderQ
        global rdCheck

        thread_rendercheck = threading.Thread(target=RenderCheck)

        if Id == 1000:
            RenderSetting()
            print('start Render')
            c4d.CallCommand(12099)
            thread_rendercheck.start()

        elif Id == 1001:
            renderQ = 0
            rdCheck = 0
            print('stop')


def RenderSetting():
    now = datetime.datetime.now()
    doc = c4d.documents.GetActiveDocument()
    renderData = doc.GetActiveRenderData()
    filename = 'path/test_'+str(now.microsecond)+'.png'
    renderData[c4d.RDATA_PATH] = filename

    renderData = doc.GetActiveRenderData().GetData()
    print(renderData[c4d.RDATA_PATH])

def RenderCheck():
    global renderQ
    global rdCheck
    rdCheck = 1

    while renderQ > 0:
        rdCheck = c4d.CheckIsRunning(c4d.CHECKISRUNNING_EXTERNALRENDERING)
        
        print("...now rendering")

        time.sleep(1)

        if rdCheck == 0:
            print('end')
            renderQ -= 1
            print('render more…　'+str(renderQ))

            if renderQ > 0:
                RenderSetting()
                c4d.CallCommand(12099)
                print('start Render')

    return True

class MainDialogCommand(c4d.plugins.CommandData):
    dialog = None

    def Execute(self, doc):
        if self.dialog is None:
            self.dialog = MainDialog()

        # Opens the dialog
        return self.dialog.Open(dlgtype=c4d.DLG_TYPE_ASYNC, pluginid=PLUGIN_ID, defaultw=400, defaulth=32)

    def RestoreLayout(self, sec_ref):
        if self.dialog is None:
            self.dialog = MainDialog()

        # Restores the layout
        return self.dialog.Restore(pluginid=PLUGIN_ID, secret=sec_ref)


# main
if __name__ == "__main__":
    # Registers the plugin
    c4d.plugins.RegisterCommandPlugin(id=PLUGIN_ID,
                                      str="Py-RenderShread_test_kt Dialog",
                                      info=0,
                                      help="RenderTest GUI",
                                      dat=MainDialogCommand(),
                                      icon=None)

Hello! @ferdinand ,@Cairyn

Thank you for politely teaching me!

I was able to solve the title problem.
I will use an external editor.
I also understood loading plugins!

I was restarting the software many times.

I have a new question, but if you study a little more and don't solve it, let me ask you another thread.

I'm really thankful to you!

I want to add another question.

Is there a rule for plug-in ID?
What number or later should be used, etc ...

I feel it is dangerous because it may affect other functions.

https://developers.maxon.net/docs/Cinema4DPythonSDK/html/modules/c4d.plugins/BaseData/CommandData/index.html?highlight=commanddata#CommandData.Execute

Thank you for your reply!
@Cairyn and @ferdinand

Thank you for your kind and polite reply.

I found that I need to program the CommandData plugin.
I succeeded in saving the sample I received as a pyp and loading it as a plugin.
I will study how to make it.

When I looked at Maxon's official website,
I found a description that could create "Hallo CommandData!", But I couldn't find this window myself.

Is there a window in which you can create a program?
Please tell me again.
Thank you.

Nice to meet you.

I am not good at English.
I have a question about pythonGUI.

windows10
Cinema4D S24.037

I created a window with buttons.
I want to touch the “object manager” with the window open.

But, if you set the "dlgtype" of'　“.open” to "DLG_TYPE_ASYNC",
I can no longer click the button of the created window.

With the “DLG_TYPE_MODAL” setting, the button works, but
I'm in trouble because other windows can't be touched.

Is there any other way?
I would like you to tell me.
Please.

import c4d
from c4d import gui

class MyDialogs(c4d.gui.GeDialog):
    def CreateLayout(self):
        self.AddButton(1201,c4d.BFH_LEFT,200,0,"button")
        return True

    def Command(self,id,msg):
        if id == 1201:            
            print("push button")
        return True


# Main function
def main():
    dlg = MyDialogs()
    dlg.Open(c4d.DLG_TYPE_ASYNC,0,-1,-1,100,100,0)
    c4d.EventAdd()

# Execute main()
if __name__=='__main__':
    main()