#include <windows.h>

#pragma comment (lib, "User32.lib")

void HideWindow() {

        HWND hwnd;

        hwnd=FindWindow("ConsoleWindowClass",NULL);

        if(hwnd) ShowWindow(hwnd,SW_HIDE);

        return;

}

int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){

        HideWindow();

    while(1){

            MessageBox(NULL, TEXT("Sorry!It is mistake!Plases close it!"), TEXT("消息对话框"), MB_OK);//建立对话框

        }

    return 0;

}