WP7：從應用程序獲取屏幕截圖

Question

如何從代碼獲取屏幕截圖？

Answer 1

檢查here，它似乎可能在模擬器上。

Answer 2

你不能害怕。如果你想截圖，你需要使用剪切工具之類的東西在外面做。

Answer 3

使用WriteableBitmap從應用程序代碼中截取應用程序的截圖非常簡單。 Laurent Bugnion在這裏寫得很好：http://geekswithblogs.net/lbugnion/archive/2010/12/28/taking-a-screenshot-from-within-a-silverlight-wp7-application.aspx

Answer 4

下面是如何從你的應用程序截取頁面代碼中的截圖並將其保存到手機的圖片庫。請注意，這不會捕獲SysTray或AppBar：

WriteableBitmap w = new System.Windows.Media.Imaging.WriteableBitmap(this, null); // 'this' is your current page 
WriteableBitmap w2 = new System.Windows.Media.Imaging.WriteableBitmap(480, 800); 

// space for SysTray 
for (int i = 0; i < 32; i++) 
{ 
    for (int j = 0; j < 480; j++) 
    { 
     w2.Pixels[i * 480 + j] = -16777216; // black #ff000000 
    } 
} 

// actual client area 
for (int i = 32; i < 728; i++) 
{ 
    for (int j = 0; j < 480; j++) 
    { 
     w2.Pixels[i * 480 + j] = w.Pixels[(i - 32) * 480 + j]; 
    } 
} 

// space for AppBar 
for (int i = 728; i < 800; i++) 
{ 
    for (int j = 0; j < 480; j++) 
    { 
     w2.Pixels[i * 480 + j] = -16777216; // black #ff000000 
    } 
} 
MemoryStream ms = new MemoryStream(); 
w2.SaveJpeg(ms, 480, 800, 0, 100); 
Microsoft.Xna.Framework.Media.MediaLibrary lib = new Microsoft.Xna.Framework.Media.MediaLibrary(); 
ms.Position = 0; 
lib.SavePicture("screenshot", ms); 

Answer 5

在Silverlight＃WP7應用程序中拍攝屏幕截圖。

public static void SaveToMediaLibrary(
FrameworkElement element, 
string title) 
{ 
try 
{ 
    var bmp = new WriteableBitmap(element, null); 

    var ms = new MemoryStream(); 
    bmp.SaveJpeg(
     ms, 
     (int)element.ActualWidth, 
     (int)element.ActualHeight, 
     0, 
     100); 
    ms.Seek(0, SeekOrigin.Begin); 

    var lib = new MediaLibrary(); 
    var filePath = string.Format(title + ".jpg"); 
    lib.SavePicture(filePath, ms); 

    MessageBox.Show(
     "Saved in your media library!", 
     "Done", 
     MessageBoxButton.OK); 
} 
catch 
{ 
    MessageBox.Show(
     "There was an error. Please disconnect your phone from the computer before saving.", 
     "Cannot save", 
     MessageBoxButton.OK); 
}}