updating images using multithreading

Question

hello,
          I am facing a problem while updating multiple images on my wpf form. i have two bitmap images an i wish to write the pixel data in these two images in parallel. I created two threads and assign the task. however there is an error...
The calling thread cannot access this object because a different thread owns it.

I understand that  actually my image objects are  handled by main thread and so the background threads are  not able to access them. can anyone knows a way to do the update in parallel . I really need to run the code in parallel as i am capturing images at 30fps. 


thank you

Answer 1

Hi,

 

I think in the above code, the for loop will skip first row. Try giving value of "i" in for loop as -1;

 

for (int i = -1; i < dataGridView2.Rows.Count - 1; i++)

{

Answer 2

Midhun T P

Got it, thank you very much!

Answer 3

Nilesh Sawardekar

 

Good suggestion but not working. Changed to 2 my header gone, change to 0 it throw an error (Exception on HRESULT: 0x800A03EC). Any other suggestion?

Answer 4

int cellRowIndex = 1;

 

change value of it and check.