#if defined (_WIN32) || defined (_WIN64)

#define WIN32_LEAN_AND_MEAN
#include <windows.h>

//-----------------------------------------------------------------------------

void setRoundedCorners ( void* windowHandle, bool rounded )
{
	if ( auto hDwmApi = LoadLibrary ( "dwmapi.dll" ); hDwmApi )
	{
		typedef HRESULT ( WINAPI* PFNSETWINDOWATTRIBUTE )( HWND hWnd, DWORD dwAttribute, LPCVOID pvAttribute, DWORD cbAttribute );

		if ( auto pfnSetWindowAttribute = reinterpret_cast<PFNSETWINDOWATTRIBUTE>( GetProcAddress ( hDwmApi, "DwmSetWindowAttribute" ) ); pfnSetWindowAttribute )
		{
			enum : DWORD
			{
				DWMWA_WINDOW_CORNER_PREFERENCE = 33,

				DWMWCP_DEFAULT = 0,
				DWMWCP_DONOTROUND,
				DWMWCP_ROUND,
			};

			// Set corners to rounded
			auto	preference = rounded ? DWMWCP_ROUND : DWMWCP_DONOTROUND;
			pfnSetWindowAttribute ( (HWND)windowHandle, DWMWA_WINDOW_CORNER_PREFERENCE, &preference, sizeof ( preference ) );
		}
		FreeLibrary ( hDwmApi );
	}
}
//-----------------------------------------------------------------------------

#endif