Telnet clear screen command

Clear ScreenCodeChar clscode [] = {0x1b, 0x5b, 0x48, 0x1b, 0x5b, 0x4a };

When using the Telnet terminal, after the content entered by the user reaches a certain length, the terminal screen automatically switches the screen content.

The preliminary method for obtaining screen content is as follows:

• Hook screen output text functions: textouta, textoutw, exttextouta, and exttextoutw

• Function Recv and wsarecv in hook Network Communication

When the function of the terminal hook receives the Screen Cleaning code, it sends the repainted message (screentoclient, invalidaterect) to the window. Then, the function of the hook can obtain the text in the screen window.