mui C example

[billiumbuck]

Hello all
I have U8G2 working well on pi pico and STM32F4 using C with help from the examples here.
Now trying MUI, I cannot get it to display any menu. I have not got to using inputs and events yet, just calling mui_GotoForm followed by mui_Draw. It compiles o.k..
Does anybody know of an example in C like the simple or down counter arduino ones?
I do appreciate that MUI is a beta project for arduino.

Thanks

[olikraus]

Any code? You also need to send the buffer, MUI will not do that.

[billiumbuck]

thanks for the quick answer ... I did not include code as I am assuming I am completely wrong :) . As I say, u8g2 works o.k. The code below is all in one main.c

`#include "u8g2.h"
#include "mui.h"
#include "mui_u8g2.h"

u8g2_t u8g2;
mui_t mui;

muif_t muif_list[] = {
MUIF_U8G2_FONT_STYLE(0, u8g2_font_helvR08_tr), /* define style 0 */
MUIF_VARIABLE("BN", NULL, mui_u8g2_btn_exit_wm_fi)
};
fds_t fds_data[] = MUI_FORM(1) MUI_XYT("BN", 64, 30, " Select Me ");

void InitU8G2(void)
{
SPI1->CR1 |= SPI_CR1_SPE; //enable spi
vsd(); //very short delay (nops)
u8g2_Setup_ssd1327_ws_128x128_f(&u8g2, U8G2_R0, u8x8_byte_4wire_hw_spi, u8x8_stm32_gpio_and_delay);
u8g2_InitDisplay(&u8g2); // send init sequence to the display, display is in sleep mode after this,
u8g2_SetPowerSave(&u8g2, 0);
u8g2_ClearBuffer(&u8g2);
u8g2_ClearDisplay(&u8g2);
u8g2_SetDrawColor(&u8g2, 1);
u8g2_SetFont(&u8g2, u8g2_font_t0_11_te);
u8g2_DrawStr(&u8g2, 10, 15, "n411chhwctl");
mui_Init(&mui, &u8g2, fds_data, muif_list, 1);
mui_GotoForm(&mui, 1, 0);
mui_Draw(&mui);
u8g2_SendBuffer(&u8g2);
}
int main(void)
{

InitU8G2();
}

`

The drawstring works, but nothing beyond.

thanks
(don't the github code button works well for me !)

[olikraus]

I think the style needs to be selected in the form.

[billiumbuck]

No it wasn't that. I got the last parameter of mui_Init wrong ! I assumed there was only one list but there are two.
ui_Init is not in the reference, so I may still have the parameters wrong.

The minimal example now displays so I will work on getting the countdown example completely working.

Thanks again for you help and fast response. 👍 :)

[olikraus]

Hmm... indeed the prototype is a little bit hidden: https://github.com/olikraus/u8g2/wiki/muiref#begin