上面代码使用.bmp没问题,你可能激活了Web主题
鼠标主题可以在.theme里指定
Arrow=%WinDir%Resources\Themes\Cursors\Vista\Arrow.cur
Help=%WinDir%Resources\Themes\Cursors\Vista\Help_S.cur
AppStarting=%WinDir%Resources\Themes\Cursors\Vista\AppStarting_S.ani
Wait=%WinDir%Resources\Themes\Cursors\Vista\Wait_S.ani
NWPen=%WinDir%Resources\Themes\Cursors\Vista\Handwriting.cur
No=%WinDir%Resources\Themes\Cursors\Vista\NO_S.cur
SizeNS=%WinDir%Resources\Themes\Cursors\Vista\SizeNS.cur
SizeWE=%WinDir%Resources\Themes\Cursors\Vista\SizeWE.cur
Crosshair=%WinDir%Resources\Themes\Cursors\Vista\Cross.cur
IBeam=%WinDir%Resources\Themes\Cursors\Vista\IBeam.cur
SizeNWSE=%WinDir%Resources\Themes\Cursors\Vista\SizeNWSE.cur
SizeNESW=%WinDir%Resources\Themes\Cursors\Vista\SizeNESW.cur
SizeAll=%WinDir%Resources\Themes\Cursors\Vista\SizeAll.cur
UpArrow=%WinDir%Resources\Themes\Cursors\Vista\UpArrow.cur
DefaultValue=Windows 默认
Link=%WinDir%Resources\Themes\Cursors\Vista\Hand.cur