topic Re: Custom Touch Keyboard in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/Custom-Touch-Keyboard/m-p/515977#M1432 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Noufal on Thu Jan 14 09:34:52 MST 2016</STRONG><BR /><SPAN>Looking for some help </SPAN><BR /><BR /><SPAN>1. In my application i want to have a keypad which will have a background image and on top of it individual</SPAN><BR /><SPAN>button and on press i need to invoke some function and change the key</SPAN><BR /><SPAN>color(another image with different color), What is the best way to create this application ? Is there any custom keypad example available which uses images as foreground for button and on click change the color of the button?</SPAN><BR /><BR /><SPAN>2. what is recommended image format( bmp or png or any other format ?) for this application </SPAN><BR /><BR /><SPAN>3. what is the correct way to create a keypad? Just use the button</SPAN><BR /><SPAN>and assign image to it or is there a way use images and trigger a call back on press / release on image? </SPAN><BR /><BR /><BR /><SPAN>4. I tried to create the layout using GUIBuilder with bmp as background image, but crashes i add more images, </SPAN><BR /><SPAN>but when i use png i'm able to create this but my application is not working on target with png, So i'm not sure what is the right format to use </SPAN><BR /><BR /><BR /><SPAN>My main concern is having lot of image it could slow down the system, So i want to use the optimum solution which would have faster response </SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 17:19:17 GMT lpcware 2016-06-15T17:19:17Z Custom Touch Keyboard https://community.nxp.com/t5/LPC-Microcontrollers/Custom-Touch-Keyboard/m-p/515976#M1431 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Noufal on Mon Dec 14 08:43:59 MST 2015</STRONG><BR /><SPAN>I want to create a simple custom touch based keyboard with 0- 9(with key images) for my application, I would like know what is the best way to create keypad, use icon or any other suggestion? </SPAN><BR /><BR /><SPAN>Also is it recommended to use bmp over png? I was trying to create layout with GUIBuilder with BMP but it crashes when i add more images, but i'm able to get it build using png, but not able to get the emwin png working, tried with emWin_V5.26 and 5.18 got some compilation issue (missing IMAGE_Private.h),after adding&nbsp; IMAGE_Private.h got it from internet, got it compiled but the display is blank</SPAN><BR /><BR /><BR /><SPAN>My project is based on 1850(flash less part), have NOR flash and Spifi as storage</SPAN></BODY></HTML> Wed, 15 Jun 2016 17:19:16 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Custom-Touch-Keyboard/m-p/515976#M1431 lpcware 2016-06-15T17:19:16Z Re: Custom Touch Keyboard https://community.nxp.com/t5/LPC-Microcontrollers/Custom-Touch-Keyboard/m-p/515977#M1432 <HTML><HEAD></HEAD><BODY><STRONG>Content originally posted in LPCWare by Noufal on Thu Jan 14 09:34:52 MST 2016</STRONG><BR /><SPAN>Looking for some help </SPAN><BR /><BR /><SPAN>1. In my application i want to have a keypad which will have a background image and on top of it individual</SPAN><BR /><SPAN>button and on press i need to invoke some function and change the key</SPAN><BR /><SPAN>color(another image with different color), What is the best way to create this application ? Is there any custom keypad example available which uses images as foreground for button and on click change the color of the button?</SPAN><BR /><BR /><SPAN>2. what is recommended image format( bmp or png or any other format ?) for this application </SPAN><BR /><BR /><SPAN>3. what is the correct way to create a keypad? Just use the button</SPAN><BR /><SPAN>and assign image to it or is there a way use images and trigger a call back on press / release on image? </SPAN><BR /><BR /><BR /><SPAN>4. I tried to create the layout using GUIBuilder with bmp as background image, but crashes i add more images, </SPAN><BR /><SPAN>but when i use png i'm able to create this but my application is not working on target with png, So i'm not sure what is the right format to use </SPAN><BR /><BR /><BR /><SPAN>My main concern is having lot of image it could slow down the system, So i want to use the optimum solution which would have faster response </SPAN><BR /></BODY></HTML> Wed, 15 Jun 2016 17:19:17 GMT https://community.nxp.com/t5/LPC-Microcontrollers/Custom-Touch-Keyboard/m-p/515977#M1432 lpcware 2016-06-15T17:19:17Z