private void ReplaceImage()
{
try
{
// Explicitly size the control - for use in a background agent
this.UpdateLayout();
this.Measure(new Size(480, 800));
this.UpdateLayout();
this.Arrange(new Rect(0, 0, 480, 800));
var wb = new WriteableBitmap(480, 800);
wb.Render(LayoutRoot, null);
wb.Invalidate();
// Create a filename for JPEG file in isolated storage.
String fileName = "Lock_" + Guid.NewGuid().ToString() + ".jpg";
var myStore = IsolatedStorageFile.GetUserStoreForApplication();
using (IsolatedStorageFileStream myFileStream = myStore.CreateFile(fileName))
{
// Encode WriteableBitmap object to a JPEG stream.
wb.SaveJpeg(myFileStream, wb.PixelWidth, wb.PixelHeight, 0, 75);
myFileStream.Close();
}
// Delete images from earlier execution
var filesTodelete = from f in myStore.GetFileNames("Lock_*").AsQueryable()
where f != fileName
select f;
foreach (var file in filesTodelete)
{
myStore.DeleteFile(file);
}
// Fire completion event
if (SaveJpegComplete != null)
{
SaveJpegComplete(this, new SaveJpegCompleteEventArgs(true, fileName));
MessageBox.Show("Lock screen changed!");
}
}
catch (Exception ex)
{
// Log it
System.Diagnostics.Debug.WriteLine("Exception in SaveJpeg: " + ex.ToString());
if (SaveJpegComplete != null)
{
var args1 = new SaveJpegCompleteEventArgs(false, "");
args1.Exception = ex;
SaveJpegComplete(this, args1);
}
}
}
private void ReplaceImage()
{
try
{
// Explicitly size the control - for use in a background agent
this.UpdateLayout();
this.Measure(new Size(480, 800));
this.UpdateLayout();
this.Arrange(new Rect(0, 0, 480, 800));
var wb = new WriteableBitmap(480, 800);
wb.Render(LayoutRoot, null);
wb.Invalidate();
// Create a filename for JPEG file in isolated storage.
String fileName = "Lock_" + Guid.NewGuid().ToString() + ".jpg";
var myStore = IsolatedStorageFile.GetUserStoreForApplication();
using (IsolatedStorageFileStream myFileStream = myStore.CreateFile(fileName))
{
// Encode WriteableBitmap object to a JPEG stream.
wb.SaveJpeg(myFileStream, wb.PixelWidth, wb.PixelHeight, 0, 75);
myFileStream.Close();
}
// Delete images from earlier execution
var filesTodelete = from f in myStore.GetFileNames("Lock_*").AsQueryable()
where f != fileName
select f;
foreach (var file in filesTodelete)
{
myStore.DeleteFile(file);
}
// Fire completion event
if (SaveJpegComplete != null)
{
SaveJpegComplete(this, new SaveJpegCompleteEventArgs(true, fileName));
MessageBox.Show("Lock screen changed!");
}
}
catch (Exception ex)
{
// Log it
System.Diagnostics.Debug.WriteLine("Exception in SaveJpeg: " + ex.ToString());
if (SaveJpegComplete != null)
{
var args1 = new SaveJpegCompleteEventArgs(false, "");
args1.Exception = ex;
SaveJpegComplete(this, args1);
}
}
}
