here are actually two questions as shown below:

1) I am using the QNX API img_load_resize_file() to resize the downloaded photo on my board. The last parameter of this 
function is of a variable of structure type img_t and inside the structure, there are elements named 'w' and 'h' which i
 undestand is width and height. Can some one explain me what is the value that i need to assign for the structure 
element named 'w' and 'h' if my requiremenet tells that the image width and height should be 170mm and 170mm 
respectively.

2)How to find the size of the image is 200kb or not?

Thanks and regards
Maddy