Declare integer PostMessage in win32api as F_PostMessage Long ,Long ,Long ,string

isec=STR(Seconds(),10,5)
F_PostMessage (thisform.HWnd,1024+22,LEN(isec),isec )


Procedure OnProgress
Lparameters tnHWnd,tnwMsg,tnwParam,tnLparam
? SYS(2600,tnLparam,tnwParam) &&这句显示乱码，要如何才能显示正确的字符串
?tnwParam,tnLparam

EndProc



        /// 使用COPYDATASTRUCT来传递字符串
        /// </summary>
        [StructLayout(LayoutKind.Sequential)]
        public struct COPYDATASTRUCT
        {
            public IntPtr dwData;
            public int cbData;
            [MarshalAs(UnmanagedType.LPStr)]
            public string lpData;
        }

[此贴子已经被作者于2023-12-22 09:53编辑过]

问下，使用postmessage 设置字符串时
会出错，这是什么问题

For x=1 to 10


imessagestring=TEXTMERGE("<<Datetime()>> <<Seconds()>> <<x>> <<nMax>> <<this.Pro>> ")
F_PostMessage(this.ParentHwnd,this.ParentMsg,LEN(imessagestring),imessagestring) &&通知主程序

*!*    isec=STR(Seconds(),10,5)
*!*    SendMessage(this.ParentHwnd,this.ParentMsg,LEN(isec),isec )

For y =1 to 200
*!*    Activate Screen
?Seconds()
EndFor
EndFor

不能在FOR 中使用字符类型的消息传递吗？

postMess int 可以