C send emojis with sendmessage()

I want send emojis to a browser like chrome or Microsoft edge with the sendmessage() function.
When i defined a string with the emojis and write it with fputs() to a .txt file the output is the expected in format of ❤❤ ++ 😘😘.

The string: snprintf(buffer, sizeof(buffer), "\U00002764\U00002764 ++ \U0001F618\U0001F618");
The buffer array use the char datatype.

With the sendmessage() function i do not get the expected output. Trying to send a maximizewindow command works. Following is my codesnipped i use:

for (int i = 0; i < strlen(buffer); i++)
{
	SendMessage(hwnd, WM_UNICHAR, (WPARAM)0, (LPARAM)buffer[i]);
}

I also tryed PostMessage() and PostMessageW().

I cant find any way to use SendMessage() with WM_UNICHAR after hours. But for me i found a good alternative solution with SendInput(). These function supports UTF32 characters and works in every window i tested. Following i will post my code to help others.

short si_ret;
INPUT pInputs;
pInputs.type		=	INPUT_KEYBOARD;
pInputs.ki.wVk		=	0; //Use here normal characters when dwFlags zero, otherwise on unicode set wVk to zero
pInputs.ki.wScan	=	(WORD)0; //Use L'❤' to send UTF-32 characters or the matching value (see WEB or wprintf)
pInputs.ki.dwFlags	=	KEYEVENTF_UNICODE;
wchar_t text[] = L"❤❤😘😘";
		
for(unsigned int x = 0; x < wcslen(text); x++)
{
	pInputs.ki.wScan	=	(WORD)text[x];
	if(!(si_ret = SendInput(1, &pInputs, sizeof(pInputs)))) { printf("SendInput do not work [%i]\r\n", GetLastError()); return 0; }
	else { printf("SendInput ok [%i]\r\n", si_ret); }
}