SliderBar垂直版本是不是有bug？

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//创建背景
HELE hToneSliderBakPic=XPic_Create(40,540,35,180,m_hWindow);
XEle_SetBkTransparent(hToneSliderBakPic,true);
XPic_SetImage(hToneSliderBakPic,XImage_LoadFile(L"image/tonebak.png",TRUE));
RECT rectToneSliderBakPic;
XEle_GetRect(hToneSliderBakPic,&rectToneSliderBakPic);
//创建滑动条
HELE hToneSliderBar = XSliderBar_Create(rectToneSliderBakPic.left+8,rectToneSliderBakPic.top+5,20,160,FALSE,m_hWindow);
XSliderBar_SetRange(hToneSliderBar,100);
XSliderBar_SetHorizon(hToneSliderBar,FALSE);
XSliderBar_SetImage(hToneSliderBar,XImage_LoadFile(L"image\\Sliderbg.png",TRUE));
XEle_SetBkTransparent(hToneSliderBar,true);
XSliderBar_SetImage2(hToneSliderBar,XImage_LoadFile(L"image\\Slidercr.png",TRUE));
HELE hSliderBarButton=XSliderBar_GetButton(hToneSliderBar);
XSliderBar_SetButtonWidth(hToneSliderBar,20);
XEle_SetBkTransparent(hSliderBarButton,true);
XBtn_SetImageLeave(hSliderBarButton,XImage_LoadFile(L"image\\bt.png"));
XBtn_SetImageStay(hSliderBarButton,XImage_LoadFile(L"image\\bt.png"));
XBtn_SetImageDown(hSliderBarButton,XImage_LoadFile(L"image\\bt.png"));
上面的代码我不管怎么修改，都是这个效果，那个滑动条的按钮总是有问题，好像水平没有这个问题，是不是这个SliderBar的BUG？请管理员看看

其他资源文件

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问题解决
1.皮肤图片文件问题

上面的程序没有问题