Hi all

I'm trying to compile simple c program with animated title bar (swapping letter case) but unfortunately I'm stuck with CreateThread in x64. Here is my sample code:

DWORD WINAPI animate(HWND hWnd);
HANDLE hthread;

case WM_INITDIALOG:
		SendMessageA(hWnd, WM_SETICON, (WPARAM) 1, (LPARAM) LoadIconA(hInst, MAKEINTRESOURCE(IDI_ICON)));
		hthread = CreateThread(0, 0, animate, hWnd, 0, 0);

DWORD WINAPI animate(HWND hWnd)
{
	unsigned char wincaption[24];
	unsigned int i;
	SendMessageA(hWnd, WM_GETTEXT, 24, (LPARAM)wincaption);
	do
	{
		for(i=0;i<19;i++)
		{
			if (((wincaption[i] >= 0x41) && (wincaption[i] <= 0x5A)) || ((wincaption[i] >= 0x61) && (wincaption[i] <= 0x7A)))
				wincaption[i] ^= 0x20;
			SendMessageA(hWnd, WM_SETTEXT, 0, (LPARAM)wincaption);
			Sleep(500);
		}
	}
	while (1);
	return 0;
}

Full package attached. It compiles to "mov r8, qword ptr [animate]" instead of "mov r8, offset animate". If compiled to x32 everything is fine. Can someone point me my error.

Thanks in advance

test.zip

It probably depends on which compiler & what settings you use. My VS2019 builds your code perfectly for both x86 and x64.

 

If your compiler keeps being stupid, try using this:

hthread = CreateThread(0, 0, &animate, hWnd, 0, 0);

Thanks. Tried that also and don't work. Compiles the same way. Will change compiler (using old LCC) to VS community (at least free version).