Declare Function StretchDIBits Lib "gdi32" (ByVal hdc As Long, ByVal x As Long, ByVal y As Long, _
ByVal dx As Long, ByVal dy As Long, ByVal SrcX As Long, ByVal SrcY As Long, ByVal wSrcWidth As Long, _
ByVal wSrcHeight As Long, lpBits As Any, lpBitsInfo As BITMAPINFO, ByVal wUsage As Long, _
ByVal dwRop As Long) As Long

请问为什么以上这段代码声明运行时会弹出“用户定义类型未定义”这样的错误提示`谢谢`！