Re: ESP8266WebServer example
Posted: Sun Jul 19, 2015 8:53 amTo correct the missing images substitute function:
void handle_image() with
I was searching for an application that would transform png images to the necessary byte array. Unfortunately I couldn't find any. If anybody knows where to get one, please let us know.
For smaller pictures the parsing can be done manually with the help of some tools. I used http://www.fileformat.info/tool/hexdump.htm online service to convert my PNG to hex. I copied the result to libreoffice writer where I removed the unnecessary portions (columns) and added "0x" columns and commas to the array. This way it takes only a few minutes for a small picture to adapt it to the correct format.
Regards,
Mat
void handle_image() with
Code: Select all
void handle_image() {
WiFiClient client = server.client();
client.write(image, sizeof(image));
server.send(200, "image/png", "");
}I was searching for an application that would transform png images to the necessary byte array. Unfortunately I couldn't find any. If anybody knows where to get one, please let us know.
For smaller pictures the parsing can be done manually with the help of some tools. I used http://www.fileformat.info/tool/hexdump.htm online service to convert my PNG to hex. I copied the result to libreoffice writer where I removed the unnecessary portions (columns) and added "0x" columns and commas to the array. This way it takes only a few minutes for a small picture to adapt it to the correct format.
Regards,
Mat
