How can I shift a bitmap vertically with 1 pixel in B4J and then add a new line at the bottom from a byte array?
In b4A I'm using BitmapExtended library, but this one is not available in B4J.
hi i send image with c# server to b4a tcp client and after get error load bitmap error.
this code very good work for udp just error in tcp from b4a i think problem for tcp b4a
img = Image.FromFile(@"C:\Users\at\Pictures\download.jpeg");
ms = new MemoryStream()...
I need to grab a pre existing image, generate a qrcode as a second image, set up a canvas, set them side by side and save the canvas as a single image.
What am I doing wrong since I always get an empty image in the right area.
I have tried to set both as the first existing image and...
I have a problem with some old code that now throws an error when compiled using the latest version of B4i v7.50 but only on a devices running iOS14.6 - OK on a device running iOS 12.5.4. The same code is cross platform and runs OK on Android devices.
B4i forms designer has a ImageView...
The code doesn't use any library, the SPI is set by inline C. Using 1.8" TFT with ST7735 driver, displaying universal 5x7 fonts for 0 to 9. The code works only for ATMEGA328, I used Arduino Nano.
Voltage input at A0. Bitmap is BMP of 16 (5:6:5) bit color, it uses about 85% of the RAM.
Maybe this is a silly question, i'm getting blurry/distorted images when appending images to CSBuilder.
I use the resize function on initialize bitmap to adjust images before adding them to the builder.
I'm using the code on this post to perform the append image...
From today the instruction .Rotate for a bitmap is behaving in a strange way.
I think the only thing changed is that I update to iOS 14.3.
Sub Cam_Complete(Success As Boolean, Image as Bitmap, VideoPath As String)
If Success Then
The code below takes a picture, saves and loads it back. However, the image after the code execution is not scaled as in the preview, it looks as if cropped and then resized to the view.
Wait For(cam.FocusAndTakePicture(MyTaskIndex)) Complete (Data() As Byte)...
My question is how to write image data held in a buffer to a bitmap for subsequent display in imageview or further manipulation?
With reference to the library I'm working on in this post, I am successfully capturing video frames sent via NDI with the data of each frame stored in a ByteBuffer...
I am still struggling with printing. PDF printing creates random errors, so I am exploring bitmap printing.
But to get to 300 dpi requires a picture 2550x3300 for a letter size printing. As a result, the resulting default bitmap format chokes the printer.
Would it be possible to use a less...
I needed to draw a bitmap rotated from the upper-left corner, not the center of the image as the canvas DrawBitmapRotated function does. After looking up the math and coding this again for the I-don't-know-how-many time, I decided to post it here so I could find it quickly in the future, or...
OUR 237Pos App is Upgraded to B4X and 2 new Versions (B4i,B4J) adding the capability of Holding Sales.
237POS Cross Platform Point Of Sale Application built with B4X tools that will run on Desktops(Windows,macOS,Linux) Android Tablets And iPads.
Customizations And Full Source Codes Available...
I am successfully putting image files into an Sqlite blob, then later reading them from the blob field, however I end up with them in a bitmap object which I then have to put into an imageview. I can see the activity background image, so I k ow I have the blob as an image object, I just need to...
So I've learned how to make a bunch of bitmaps fly out of the center of the screen using the SetLayoutAnimated method and a timer.
What I'd like to do next is move a bitmap along a spiral path starting from the center of the screen. Any ideas on how to accomplish this without using thousands of...
Good day I am a bit frustrated as my code work in Android but not in IOS
I get the following error
Error occurred on line: 65 (Main)
Error loading image.
Stack Trace: (
CoreFoundation <redacted> + 252
libobjc.A.dylib objc_exception_throw + 56
CoreFoundation <redacted> +...