how exactly does pclose work in C? Post: 302504997

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Top Forums Programming how exactly does pclose work in C? Post 302504997 by Corona688 on Wednesday 16th of March 2011 12:18:54 AM

03-16-2011

Registered User

Quote:

Originally Posted by omega666

sorta unrelated question:
if you have an array that not all elements have been put in

Please don't use netspeak. We really discourage it here; and if you know what "you" means, you also know how to spell it!

What do you mean by 'put in'? And what kind of array, anyway?

Quote:

and you do a for loop for it, will it crash if it tries to access one of the elements that doesn't have anything in it?

Depends what it is and what you're doing with it. An array of integers may have unpredictable values if you never put anything in it before you used it, but won't crash in of itself. (Of course, the things you do with unexpected numbers may cause it to crash, but that's neither here nor there.) An array of pointers may be full of garbage pointers aimed at nowhere in particular which will crash if you dereference them. Or, worse, they may be pointers to VALID if unintended memory, which will do bizzare unpredictable things instead of crashing.

But in any of these cases it's not the array that's crashing -- it's what you do with the values you find in it.

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dxmcolormixsetnewcolor

DXmColorMixSetNewColor(3X)												DXmColorMixSetNewColor(3X)

NAME

       DXmColorMixSetNewColor - Sets the new color red, green, and blue values in the color mixing widget.

SYNOPSIS

       void DXmColorMixSetNewColor(
	       DXmColorMixWidget cmw,
	       unsigned short red,
	       unsigned short green,
	       unsigned short blue );

PARAMETERS

       The  identifier	(widget ID) of the color mixing widget.  The new color red value. The value is expressed as an X color value (0 to 65535).
       The new color green value. The value is expressed as an X color value (0 to 65535).  The new color blue value. The value is expressed as an
       X color value (0 to 65535).

       A  complete  list  of  all the X color values available to you is located on your system.  To find it, type the following command: % find /
       -name '*rgb*' -print

DESCRIPTION

       The DXmColorMixSetNewColor routine allows the application or a user-supplied color mixer subwidget to pass the current color value  to  the
       color  mixing widget.  Note that your application will perform this operation faster if you call this routine instead of the Intrinsic rou-
       tine XtSetValues.

SEE ALSO

       DXmColorMixGetNewColor(3X), DXmCreateColorMix(3X), DXmCreateColorMixDialog(3X)

															DXmColorMixSetNewColor(3X)

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