<![CDATA[M5Paper, using canvas in procedure]]>Have wrote a simple program, with a procedure that use canvas.
When compile the program get error message
"canvas1' was not declared in this scope" .

This is my program:

#include <M5EPD.h>

void setup() {
M5.begin();
M5.TP.SetRotation(180);
M5.EPD.SetRotation(180);
M5.EPD.Clear(true);
canvas1.createCanvas(960, 540);
canvas1.loadFont("/fonts/GenSenRounded-R.ttf", SD);
DisplayDisplayWindSection(480, 270, 300, 3.5, 40)
canvas1.pushCanvas(0, 0, UPDATE_MODE_GL16);

}

void loop() {
// put your main code here, to run repeatedly:

}

void drawWindroos()
{
canvas1.loadFont("/fonts/GenSenRounded-R.ttf", SD);
canvas1.createRender(30);
canvas1.setTextSize(30);
}

The error is shown in the first line of the procedure drawWindroos.
How to avoid this error?

Cheers,
Jan

]]>https://community.m5stack.com/topic/2891/m5paper-using-canvas-in-procedureRSS for NodeTue, 14 Apr 2026 15:57:55 GMTThu, 04 Feb 2021 18:23:54 GMT60<![CDATA[Reply to M5Paper, using canvas in procedure on Thu, 04 Feb 2021 18:40:06 GMT]]>@powersoft
Do you only have 1 canvas? Try canvas instead of canvas1.

BTW, you can enclose your code in three back ticks (```) to make it easier for us to read, like this...

this text has three back ticks before and after it
]]>https://community.m5stack.com/post/12293https://community.m5stack.com/post/12293Thu, 04 Feb 2021 18:40:06 GMT