Windows光标形状
::SetCursor( LoadCursor(NULL, IDC_XXX) );
IDC_ARROW (plain)
IDC_HELP (arrow + question mark)
IDC_APPSTARTING (arrow + egg timer)
IDC_SIZENWISE
IDC_IBEAM
IDC_SIZEALL
IDC_SIZEWE
IDC_CROSS
IDC_SIZENESW
IDC_UPARROW
IDC_HAND
IDC_NO
IDC_SIZENS
IDC_WAIT