We are building a prototype of a ready-to-use box to provide remote read/write access to your devices via web. Based on Raspberry pi 3 + Android, Remode Manager App will be preinstalled and configured so that a simple usb/serial connection will instantly allow to remotely send command or receive data to Arduino or other IOT-oriented…
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By XE7 version of Delphi components are available to manage Bluetooth Classic and LE. With FireMonkey is quite simple also create a bluetooth server. Trying my applications on Raspberry PI3 where Federico mounted Marshmallow I am aware that if BT is not available on the device the app crashed. To overcome this problem I tried…
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To check with Delphi / Firemonkey if the screen is in Landscape or Portrait mode i use the FMXPlatform library as in the example: uses FMXPlatform; … procedure TForm2.FormResize(Sender: TObject); var ScreenService: IFMXScreenService; begin if TPlatformServices.Current.SupportsPlatformService(IFMXScreenService, IInterface(ScreenService)) then begin if ScreenService.GetScreenOrientation in [TScreenOrientation.soPortrait, TScreenOrientation.soInvertedPortrait] then ShowMessage(‘Portrait Orientation’) else Begin ShowMessage(‘Landscape Orientation’); End; end; end;
With Delphi , to the Seattle version , when you scale a bitmap image to enlarge using the command “Canvas.DrawBitmap(OiginalBitmap, RectF(0, 0, OiginalBitmap.Width, OiginalBitmap.Height), RectF(0, 0, Width, Height), 1, False);” the interpolation cant be disabled. A way to eliminate the problem is to manually scale the bitmap directly creating an image pixel by pixel .…
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