silverlight在wince上的应用

概述这两天使用silverlight编写一个在wince 7.0上运行的photoview小工具，中间遇到许多问题，现在记录下来，方便以后查找。     HWND hWnd; IXRBitmapImagePtr image_background; IXRImagePtr image_control; IXRImagePtr pFull_image; IXRScaleTransformPtr pImag

这两天使用silverlight编写一个在wince 7.0上运行的photovIEw小工具，中间遇到许多问题，现在记录下来，方便以后查找。

 

 

HWND hWnd;

IXRBitmAPImagePtr image_background;

IXRImagePtr image_control;

IXRImagePtr pFull_image;

IXRScaletransformPtr pImageScale;

IXRRotatetransformPtr pImageRotate;

IXRScrollVIEwerPtr pScroll;

IXRCanvasPtr pFull;

float fWIDth,fheight;

HWND hWndTaskbar    = NulL;    // The Taskbar

BOol mode = false;   

 

 

图片放大/缩小：

 

HRESulT OnBSClicked(IXRDependencyObject* source,XRMousebuttonEventArgs* args)

{

HRESulT retcode;

BSTR pname;

 

float fActualX,fActualY;

static float x = 1.0;

static float y = 1.0;

if(Failed(retcode = source->Getname(&pname)))

return retcode;

 

if(!wcscmp(pname,L"btn_small"))

{

if(x > 0.5)

x -= 0.1;

if(y > 0.5)

y -= 0.1;

}

else

{

x += 0.1;

y += 0.1;

}

//image_control->GetActualX(&fActualX);

//image_control->GetActualY(&fActualY);

 

//pImageScale->SetCenterX(fActualX + fWIDth/2);

//pImageScale->SetCenterY(fActualY + fheight/2);

pImageScale->SetScaleX(x);

pImageScale->SetScaleY(y);

 

if( 1.0 < x )

{

pScroll->SetVerticalScrollbarVisibility(XRScrollbarVisibility_Visible);

pScroll->SetHorizontalScrollbarVisibility(XRScrollbarVisibility_Visible);

}

else

{

pScroll->SetVerticalScrollbarVisibility(XRScrollbarVisibility_HIDden);

pScroll->SetHorizontalScrollbarVisibility(XRScrollbarVisibility_HIDden);

}

image_control->SetWIDth(x * fWIDth);

image_control->SetHeight(y * fheight);

image_control->SetRendertransform(pImageScale);

image_control->SetStretch(XRStretch_UniformToFill);

 

return S_OK;

}

 

图片翻转：

 

HRESulT OnRotateClicked(IXRDependencyObject* source,XRMousebuttonEventArgs* args)

{

HRESulT retcode;

BSTR pname;

 

static float angle = 0;

 

//float centerX = fWIDth/2;

//float centerY = fheight/2;

float centerX = 0.5;

float centerY = 0.5;

if(Failed(retcode = source->Getname(&pname)))

return retcode;

if(!wcscmp(pname,L"btn_forward"))

{

angle += 90;

}

else

angle -= 90;

 

pImageRotate->SetAngle(angle);

pImageRotate->SetCenterX(centerX);

pImageRotate->SetCenterY(centerY);

 

image_control->SetRendertransform(pImageRotate);

 

return S_OK;

 

}

 

删除图片：

 

HRESulT OnDelClicked(IXRDependencyObject* source,XRMousebuttonEventArgs* args)

{

if(IDOK == MessageBox(hWnd,L"Are you sure to delete the picture?",L"PhotoVIEw",MB_OKCANCEL))

Deletefile(ImageArry[i]);

 

return S_OK;

}

 

 

图片全屏：

 

HRESulT OnPlayClicked(IXRDependencyObject* source,XRMousebuttonEventArgs* args)

{

 

if (mode)

{

if(hWndTaskbar != NulL)        

ShowWindow(hWndTaskbar,SW_SHOW);

pScroll->Setopacity(100);

pScroll->SetVisibility(XRVisibility_Visible);

pFull->SetVisibility(XRVisibility_Collapsed);

::SetwindowPos(hWnd,/*HWND_topMOST*/HWND_NOtopMOST,50,640,480,SWP_NOOWNERZORDER|SWP_SHOWWINDOW);

mode = false;

}

else

{

if (hWndTaskbar != NulL)    ShowWindow(hWndTaskbar,SW_HIDE);

 

int iFullWIDth = GetSystemMetrics(SM_CXSCREEN); 

int iFullHeight = GetSystemMetrics(SM_CYSCREEN); 

pImageScale->SetScaleX(1.0);

pImageScale->SetScaleY(1.0);

pScroll->Setopacity(0);

pScroll->SetVisibility(XRVisibility_Collapsed);

pFull->SetRendertransform(pImageScale);

pFull->Setopacity(100);

pFull->SetVisibility(XRVisibility_Visible);

::SetwindowPos(hWnd,HWND_topMOST/*HWND_NOtopMOST*/,iFullWIDth,iFullHeight,SWP_NOOWNERZORDER|SWP_SHOWWINDOW);

//pScroll->UpdateLayout();

mode = true;

}

return S_OK;

}

总结

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