[英]How to restart a windows device from my windows 8.1 store app using c# code in visual studios?
[英]How to open powerpoint from Windows 8.1 app
我正在尝试构建一个 Windows 8.1 应用程序,该应用程序可以全屏打开本地计算机的 powerpoint 文件,其中包含三个按钮来执行下一个、上一个和退出。 我能够使用 winform 但在 WPF 中无法做到这一点。 在winform中,我使用了嵌入ppt的面板控件。 面板被 WPF 中的画布取代,但我不知道如何在其中嵌入 ppt。 除了这个还有其他方法请分享吗? 我不能使用 XPS,因为它不支持任何动画。
//System.Diagnostics.Process.Start("POWERPNT.EXE", "C:/Users/SAURABH/Desktop/office/Engineer's.pptx");
// Microsoft.Office.Interop.PowerPoint.Application application;
// // For Display in Panel
// IntPtr screenClasshWnd = (IntPtr)0;
// IntPtr x = (IntPtr)0;
// application = new Microsoft.Office.Interop.PowerPoint.Application();
// Microsoft.Office.Interop.PowerPoint.Presentation presentation = application.Presentations.Open(@"C:\Users\delink\Documents\SAMPLE_PPT.pptx", MsoTriState.msoTrue, MsoTriState.msoTrue, MsoTriState.msoFalse);
// pptViewPanel.Children.Add(application as Control);
// //pptViewPanel.Controls.Add(application as Control);
// Microsoft.Office.Interop.PowerPoint.SlideShowSettings sst1 = presentation.SlideShowSettings;
// sst1.LoopUntilStopped = Microsoft.Office.Core.MsoTriState.msoTrue;
// Microsoft.Office.Interop.PowerPoint.Slides objSlides = presentation.Slides;
// sst1.LoopUntilStopped = MsoTriState.msoTrue;
// sst1.StartingSlide = 1;
// sst1.EndingSlide = objSlides.Count;
// // pptViewPanel.Dock = DockStyle.Fill;
// sst1.ShowType = Microsoft.Office.Interop.PowerPoint.PpSlideShowType.ppShowTypeKiosk;
// Microsoft.Office.Interop.PowerPoint.SlideShowWindow sw = sst1.Run();
// //sw=Objssws
// oSlideShowView = presentation.SlideShowWindow.View;
// IntPtr pptptr = (IntPtr)sw.HWND;
// SetParent(pptptr, pptViewPanel.handle);**"**this where I am getting-"in 'pptviewpanel.handle'"** rror"**
您可以即时将演示文稿转换为视频格式:
// not tested as I don't have the Office 2010, but should work
private string GetVideoFromPpt(string filename)
{
var app = new PowerPoint.Application();
var presentation = app.Presentations.Open(filename, MsoTriState.msoTrue, MsoTriState.msoTrue, MsoTriState.msoFalse);
var wmvfile = Guid.NewGuid().ToString() + ".wmv";
var fullpath = Path.GetTempPath() + filename;
try
{
presentation.CreateVideo(wmvfile);
presentation.SaveCopyAs(fullpath, PowerPoint.PpSaveAsFileType.ppSaveAsWMV, MsoTriState.msoCTrue);
}
catch (COMException ex)
{
wmvfile = null;
}
finally
{
app.Quit();
}
return wmvfile;
}
然后,您可以使用MediaElement进行播放:
<MediaElement Name="player" LoadedBehavior="Manual" UnloadedBehavior="Stop" />
public void PlayPresentation(string filename)
{
var wmvfile = GetVideoFromPpt(filename);
player.Source = new Uri(wmvfile);
player.Play();
}
播放完视频后,不要忘了File.Delete(wmvfile)!
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