eine struct als Parameter an Funktion übergeben...?

[HaWe]

hmm... kann ich nicht erkennen, siehst du mehr als ich?

Hier ist der Testcode:

/*
 *  
 *********** This code is for the ESP8266 ***********
 * 
 ****** ESP_ssd1306_128x64_I2C demo display *********
 *
 *      using ESP_SSD1306 Adafruit library  
 * for a ssd1306 OLED Display  with the ESP8266 board
 *
 *********** This code is for the ESP8266 *********** 
 * 
*/


// I2C
#include <Wire.h>         // Incl I2C comm, but needed for not getting compile error
#define ESPSDA D2         // defaults
#define ESPSCL D1         // 

// TFT
#include <ESP_SSD1306.h>    // Modification of Adafruit_SSD1306 for ESP8266 compatibility
#include <Adafruit_GFX.h>   // Needs a little change in original Adafruit library (See README.txt file)
#include <Fonts/FreeSans12pt7b.h>            // 
#include <Fonts/FreeSansBold12pt7b.h>        // 
#include <Fonts/FreeSans9pt7b.h>             //
#include <Fonts/FreeMono12pt7b.h>            //   
#include <Fonts/FreeMono9pt7b.h>    
// Pin definitions
#define OLED_RESET 10  // GPIO10=D12 Pin RESET signal (virtual)

ESP_SSD1306 display(OLED_RESET); // FOR I2C

/*
#include <ButtonClass.h>
tButton btnup;
tButton btnle;
tButton btnri;
*/



//----------------------------------------------------------------------------
// OLED dashboard
//----------------------------------------------------------------------------


byte MAXMODE=12;

void dashboard(byte mode) {  
  if(mode>MAXMODE ) { mode=0; }

  display.clearDisplay();
  display.setFont();

  
  display.display();
  display.setFont();
}

//----------------------------------------------------------------------------
// menu list
//----------------------------------------------------------------------------


char LINELEN = 8;
char LINENUM = 4;

typedef struct  {
   char line[8][20] = {"line0_67 9012345678" ,"line1_6"      ,"line2_67" ,
                       "line3_6789012345678" ,"line4_6789012345678" ,"line5_6789012345678" ,
                       "line6_6789012345678" ,"line7_6789012345678" };
   char act=0, top=0, btm=top+LINENUM;
   char subl[12]="           ";
} list;

list mList00;


void strcpysubl(char * dest, char * source, char pos) {
   byte l;
   memset(dest,' ',sizeof(dest));
   dest[12]=0;
   strncpy( dest+1, source+pos, LINELEN );   
   if(strlen(source)>(8+pos) )  dest[9] = '~' ; 
   else for( l=strlen(dest); l<=9; l++) dest[l]=' ';    
   dest[10] = '>';
   dest[11] = 0;
}


void  displayMenulist(list mList) {
  int8_t start;
  byte l;
  
  if(mList.act>LINENUM) start=mList.act;
  else start=0;
  
  for(byte i=0+start; i<5+start; i++) { 
    strcpysubl( mList.subl, mList.line[i], 0); 
      
      if(i==mList.act) { 
        //display.setTextColor(BLACK, WHITE);
        mList.subl[0]='>';
      }
      //else display.setTextColor(WHITE);
      l=10 + i*13;
      display.setCursor( 0, l);  display.print(mList.subl);
      Serial.println(mList.subl);
      display.display();
  } 

}  
                 
  
                     

void setup(void)
{
	// Start Serial

	Serial.begin(115200);
        delay(2000); // wait for Serial()
  
	// Start Wire (SDA, SCL)
	Wire.begin(ESPSDA,ESPSCL);  // !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  // SSD1306 Init  
  display.begin(SSD1306_SWITCHCAPVCC);  // Switch OLED
  display.setRotation(2);  
  display.clearDisplay();  // Clear the buffer.

  // text display tests
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0,0);
  display.println("Hello, world!");  
  display.display();

  delay(1000);
  display.clearDisplay(); 
  display.display();

  for(byte i=0; i<8; i++) { Serial.println(mList00.line[i]); }
  
  Serial.print("act="); Serial.println((byte)mList00.act);

  display.setFont(&FreeMono9pt7b); // h=13.10pt
  displayMenulist(mList00);
     
  delay(2000);
  
}


void loop() {
     
}