How can I delete blank space in string in C

How can I delete blank space in string in C.... That is the question? I am trying to delete blanc spaces in a string but I don't know the C funtion to do it, from the left and from the right.

regards all

Try: jdeRemoveLeadingAndTrailingSpaces

As in:
szNewStringPointer = jdeRemoveLeadingAndTrailingSpaces(szSourceString);