Open niradat opened 3 years ago
You are calling UG_Init calling foo, you should pass foo as parameter , not calling it.
UG_Init(&gui1963, &my_int_func, 160, 128);
Hello 0x3333,
Same error persist even when the function is passed as parameter. Kindly check this code. I have made it more simple.
`#include
char bufferOut[BuffOUT]; void window_1_callback(UG_MESSAGE *msg);
UG_GUI gui1963; UG_COLOR color[3];
void my_int_func(UG_S16 x,UG_S16 y,UG_COLOR z) { unsigned int sum=0; sum=x+y+z; }
void setup()
{
UG_Init(&gui1963, &my_int_func , 160, 128);
UG_COLOR color[3];
UG_WINDOW window_1;
UG_BUTTON button_1;
UG_BUTTON button_2;
UG_BUTTON button_3;
UG_TEXTBOX textbox_1;
UG_OBJECT obj_buff_wnd_1[MAX_OBJECTS];
}
void loop() { // put your main code here, to run repeatedly:
}`
Following error is encountered.
C:\Users\User\AppData\Local\Temp\ccxbkPNw.ltrans0.ltrans.o: In function
setup':
C:\Users\User\Desktop\testugui/testugui.ino:25: undefined reference to `UG_Init(UG_GUI, void ()(int, int, unsigned int), int, int)'
collect2.exe: error: ld returned 1 exit status`
Hi, Following is my code on Arduino IDE using ATMEGA2560 Board. `#include
include "ugui.h"
include "ugui_config.h"
define DISPLAY_WIDTH 160
define DISPLAY_HEIGHT 128
define MAX_OBJECTS 10
define BuffOUT 40
char bufferOut[BuffOUT]; void window_1_callback(UG_MESSAGE *msg); UG_GUI gui1963; UG_COLOR color[3];
void my_int_func(UG_S16 x,UG_S16 y,UG_COLOR z) { unsigned int sum=0; sum=x+y+z; }
void setup() {
void (*foo)(UG_S16,UG_S16,UG_COLOR);
foo = &my_int_func;
}
void loop() { // put your main code here, to run repeatedly:
}`
I encounter following error when compiling. Kindly provide an insight of whats going wrong?
testugui:27:43: error: invalid use of void expression
testugui:37:43: error: invalid use of void expression
Regards,