static CoreGraphics.CGImage[] GetFrames(CGImageSource source, CGImageThumbnailOptions options)
{
var retval = new CoreGraphics.CGImage[source.ImageCount];
for (int i = 0; i < source.ImageCount; i++)
{
var frameImage = source.CreateThumbnail(i, options);
retval[i] = frameImage;
}
return(retval);
}
protected override UIImage Transform(UIImage sourceBitmap, string path, ImageSource source, bool isPlaceholder, string key)
{
var effect = new CIPhotoEffectMono()
{
InputImage = sourceBitmap.CGImage
};
var output = effect.OutputImage;
var context = CIContext.FromOptions(null);
CoreGraphics.CGImage cgimage = context.CreateCGImage(output, output.Extent);
return(UIImage.FromImage(cgimage));
}
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 print(SKBitmap toPrint)
{
try
{
BRPtouchPrintInfo printInfo = new BRPtouchPrintInfo();
printInfo.StrPaperName = @"36mm";
printInfo.NPrintMode = (int)PrintFlags.PRINT_FIT;
printInfo.NOrientation = (int)PrintFlags.ORI_LANDSCAPE;
printInfo.NHorizontalAlign = (int)PrintFlags.ALIGN_CENTER;
printInfo.NVerticalAlign = (int)PrintFlags.ALIGN_MIDDLE;
printInfo.BHalfCut = true;
printInfo.BEndcut = true;
printInfo.NAutoCutFlag = (int)PrintFlags.OPTION_AUTOCUT;
printInfo.NAutoCutCopies = 1;
printInfo.NCustomLength = toPrint.Width;
BRPtouchPrinter printer = new BRPtouchPrinter("Brother PT-P950NW", ConnectionType.Wlan);
printer.SetIPAddress("192.168.43.126"); //192.168.43.126
printer.SetPrintInfo(printInfo);
bool worked = printer.StartCommunication();
if (worked)
{
using (CoreGraphics.CGImage cgImage2 = new CoreGraphics.CGImage(toPrint.Width, toPrint.Height, 8, toPrint.BytesPerPixel * 8, toPrint.BytesPerPixel * toPrint.Width, CoreGraphics.CGColorSpace.CreateGenericGray(), CoreGraphics.CGBitmapFlags.None, new CoreGraphics.CGDataProvider(toPrint.Bytes), null, false, CoreGraphics.CGColorRenderingIntent.Default))
{
BRPtouchPrinterErrors result2 = (BRPtouchPrinterErrors)printer.PrintImage(cgImage2, 1);
printer.EndCommunication();
}
}
}
catch (Exception ex)
{
System.Console.WriteLine("ERROR: " + ex.Message + "\r\n" + ex.StackTrace);
}
}
partial void Init(CoreGraphics.CGImage img);
public Image(CoreGraphics.CGImage img)
{
Init(img);
}
public NSBitmapImageRep(CoreGraphics.CGImage cgImage)
{
}
private void bw_SaveMulti(object sender, System.ComponentModel.DoWorkEventArgs e)
{
List <ALAsset> results = (List <ALAsset>)e.Argument;
List <string> errors = new List <string> ();
using (Connection sqlConn = new Connection(SQLiteBoostDB.GetDBPath())) {
VehicleImagesDB vidb = new VehicleImagesDB(sqlConn);
vidb.RemoveAllImages(this.vehicleId);
}
var imagePath = Graphics.GetImagePath(vehicleId);
int counter = 0;
foreach (var asset in results)
{
var obj = asset.AssetType;
if (obj == default(ALAssetType))
{
continue;
}
using (var rep = asset.DefaultRepresentation) {
if (rep != null)
{
//var result = new AssetResult ();
using (CoreGraphics.CGImage cgImage = rep.GetFullScreenImage()) {
UIImageOrientation orientation = UIImageOrientation.Up;
using (UIImage uiImage = new UIImage(cgImage, 1.0f, orientation)) {
counter++;
string filePath = Path.Combine(imagePath, "image_" + counter + ".jpg");
string thumbPath = Path.Combine(imagePath, "thumb_" + counter + ".jpg");
NSError fileError, thumbError;
try {
if (!Directory.Exists(imagePath))
{
Directory.CreateDirectory(imagePath);
}
if (File.Exists(filePath))
{
File.Delete(filePath);
}
if (File.Exists(thumbPath))
{
File.Delete(thumbPath);
}
using (NSData jpegData = uiImage.AsJPEG()) {
jpegData.Save(filePath, NSDataWritingOptions.Atomic, out fileError);
using (UIImage thumb = Graphics.ResizeImage(UIImage.LoadFromData(jpegData), 100f, 75f))
thumb.AsJPEG().Save(thumbPath, NSDataWritingOptions.Atomic, out thumbError);
if (fileError != null)
{
throw new Exception("Error saving image. " + fileError.ToString());
}
if (thumbError != null)
{
throw new Exception("Error saving thumbnail. " + thumbError.ToString());
}
Graphics.SaveImage(counter, filePath, vehicleId);
}
}
catch (Exception ex) {
errors.Add(ex.ToString());
}
}
}
}
}
}
results = null;
e.Result = errors;
}
public NSImage(CoreGraphics.CGImage image, System.Drawing.SizeF size)
{
}
