public void TakeScreenshot(string screenshotPath)
{
#if MAC
DispatchService.GuiDispatch(delegate {
try {
IntPtr handle = CGDisplayCreateImage(MainDisplayID());
CoreGraphics.CGImage screenshot = ObjCRuntime.Runtime.GetINativeObject <CoreGraphics.CGImage> (handle, true);
AppKit.NSBitmapImageRep imgRep = new AppKit.NSBitmapImageRep(screenshot);
var imageData = imgRep.RepresentationUsingTypeProperties(AppKit.NSBitmapImageFileType.Png);
imageData.Save(screenshotPath, true);
} catch (Exception e) {
Console.WriteLine(e);
throw;
}
});
#endif
}
public void TakeScreenshot(string screenshotPath)
{
#if MAC
Runtime.RunInMainThread(delegate {
try {
IntPtr handle = CGDisplayCreateImage(MainDisplayID());
CoreGraphics.CGImage screenshot = ObjCRuntime.Runtime.GetINativeObject <CoreGraphics.CGImage> (handle, true);
AppKit.NSBitmapImageRep imgRep = new AppKit.NSBitmapImageRep(screenshot);
var imageData = imgRep.RepresentationUsingTypeProperties(AppKit.NSBitmapImageFileType.Png);
imageData.Save(screenshotPath, true);
} catch (Exception e) {
Console.WriteLine(e);
throw;
}
});
#else
Sync(delegate {
try {
using (var bmp = new System.Drawing.Bitmap(System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width,
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height)) {
using (var g = System.Drawing.Graphics.FromImage(bmp))
{
g.CopyFromScreen(System.Windows.Forms.Screen.PrimaryScreen.Bounds.X,
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Y,
0, 0,
bmp.Size,
System.Drawing.CopyPixelOperation.SourceCopy);
}
bmp.Save(screenshotPath);
}
return(null);
} catch (Exception e) {
Console.WriteLine(e);
throw;
}
});
#endif
}
public static void TestCapture()
{
Foundation.NSNumber mainScreen = (Foundation.NSNumber)AppKit.NSScreen.MainScreen.DeviceDescription["NSScreenNumber"];
using (CoreGraphics.CGImage cgImage = CreateImage(mainScreen.UInt32Value))
{
// https://stackoverflow.com/questions/17334786/get-pixel-from-the-screen-screenshot-in-max-osx/17343305#17343305
// Get byte-array from CGImage
// https://gist.github.com/zhangao0086/5fafb1e1c0b5d629eb76
AppKit.NSBitmapImageRep bitmapRep = new AppKit.NSBitmapImageRep(cgImage);
// var imageData = bitmapRep.representationUsingType(NSBitmapImageFileType.NSPNGFileType, properties: [:])
Foundation.NSData imageData = bitmapRep.RepresentationUsingTypeProperties(AppKit.NSBitmapImageFileType.Png);
long len = imageData.Length;
byte[] bytes = new byte[len];
System.Runtime.InteropServices.GCHandle pinnedArray = System.Runtime.InteropServices.GCHandle.Alloc(bytes, System.Runtime.InteropServices.GCHandleType.Pinned);
System.IntPtr pointer = pinnedArray.AddrOfPinnedObject();
// Do your stuff...
imageData.GetBytes(pointer, new System.IntPtr(len));
pinnedArray.Free();
using (AppKit.NSImage nsImage = new AppKit.NSImage(cgImage, new System.Drawing.SizeF(cgImage.Width, cgImage.Height)))
{
// ImageView.Image = nsImage;
// And now ? How to get the image bytes ?
// https://theconfuzedsourcecode.wordpress.com/2016/02/24/convert-android-bitmap-image-and-ios-uiimage-to-byte-array-in-xamarin/
// https://stackoverflow.com/questions/5645157/nsimage-from-byte-array
// https://stackoverflow.com/questions/53060723/nsimage-source-from-byte-array-cocoa-app-xamarin-c-sharp
// https://gist.github.com/zhangao0086/5fafb1e1c0b5d629eb76
// https://www.quora.com/What-is-a-way-to-convert-UIImage-to-a-byte-array-in-Swift?share=1
// https://stackoverflow.com/questions/17112314/converting-uiimage-to-byte-array
} // End Using nsImage
} // End Using cgImage
} // End Sub TestCapture
public void TakeScreenshot (string screenshotPath)
{
#if MAC
DispatchService.GuiDispatch (delegate {
try {
IntPtr handle = CGDisplayCreateImage (MainDisplayID ());
CoreGraphics.CGImage screenshot = ObjCRuntime.Runtime.GetINativeObject <CoreGraphics.CGImage> (handle, true);
AppKit.NSBitmapImageRep imgRep = new AppKit.NSBitmapImageRep (screenshot);
var imageData = imgRep.RepresentationUsingTypeProperties (AppKit.NSBitmapImageFileType.Png);
imageData.Save (screenshotPath, true);
} catch (Exception e) {
Console.WriteLine (e);
throw;
}
});
#endif
}
public void TakeScreenshot (string screenshotPath)
{
#if MAC
Runtime.RunInMainThread (delegate {
try {
IntPtr handle = CGDisplayCreateImage (MainDisplayID ());
CoreGraphics.CGImage screenshot = ObjCRuntime.Runtime.GetINativeObject <CoreGraphics.CGImage> (handle, true);
AppKit.NSBitmapImageRep imgRep = new AppKit.NSBitmapImageRep (screenshot);
var imageData = imgRep.RepresentationUsingTypeProperties (AppKit.NSBitmapImageFileType.Png);
imageData.Save (screenshotPath, true);
} catch (Exception e) {
Console.WriteLine (e);
throw;
}
});
#else
Sync (delegate {
try {
using (var bmp = new System.Drawing.Bitmap (System.Windows.Forms.Screen.PrimaryScreen.Bounds.Width,
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Height)) {
using (var g = System.Drawing.Graphics.FromImage(bmp))
{
g.CopyFromScreen(System.Windows.Forms.Screen.PrimaryScreen.Bounds.X,
System.Windows.Forms.Screen.PrimaryScreen.Bounds.Y,
0, 0,
bmp.Size,
System.Drawing.CopyPixelOperation.SourceCopy);
}
bmp.Save(screenshotPath);
}
return null;
} catch (Exception e) {
Console.WriteLine (e);
throw;
}
});
#endif
}