#include <iostream>
#include <string>
#include <windows.h>
 
struct Data
{
     std::wstring className;
     std::wstring windowText;
     HWND   hWnd;
};
 
bool CALLBACK EnumWindowsProc(HWND currentHwnd, LPARAM data_ref)
{
    const int size= MAX_PATH;
    wchar_t buffer[size]={0};
    GetClassNameW(currentHwnd,buffer, size);
    std::wstring currentClassName= buffer;
    GetWindowTextW(currentHwnd,buffer,size);
    std::wstring currentWindowText= buffer;
 
    Data* data= (Data*)data_ref;
 
    bool cn= data->className.empty()  || currentClassName == data->className;
    bool wt= data->windowText.empty() || currentWindowText== data->windowText;
 
    if(cn && wt)
    {
        data->hWnd= currentHwnd;
        return false;
    }
 
    return true;
}
 
HWND findWindow(const std::wstring& parentClassName,
                const std::wstring& className,
                const std::wstring& text=std::wstring(L""))
{
    HWND hWindow= FindWindowW(parentClassName.c_str(),0);
    if(!hWindow)
         return 0;
 
    Data data= { className, text, 0 };
    EnumChildWindows(hWindow,
                                     (WNDENUMPROC)EnumWindowsProc,
                                     (LPARAM)&data);
    return data.hWnd;
}
 
int main()
{
    HWND hChatBanner= findWindow(L"tSkMainForm", L"TChatBanner");
    ShowWindow(hChatBanner, SW_HIDE);
    return 0;
}