Re: Wrong result from MemHandleSize?
See below
loc = MemHandleLock(h);
strsize = StrLen(loc);
//strsize = 288628 again wrong, but at least it is consistent!
This makes no sense at all, and suggests a bug with your code. Pilrc
always puts the trailing nul on string resources, and StrLen should
not fail like that. How is the strsize variable declared?
loc is a char *, and strsize is long int.
There is a trailing null, as shown below.
loc = source;
while (*loc != 0) {i++; loc++;}
// i=3283 this is the correct value
I can't comment on this because I don't know how the variable source
got declared and assigned.
Sorry about the line loc=source. Just delete it, it was an erroneous
copy and paste.
It would be better if you could post a complete, compilable code
snippet, including all variable declaration and initialization.
void showProblem() {
MemHandle h;
long int strsize;
char * loc;
h = DmGet1Resource('tSTR', 2000);
strsize = MemHandleSize(h); //Yields incorrect value ~ 288628
loc = MemHandleLock(h);
strsize = StrLen(loc); //Also gives the same wrong value
strsize = 0;
while (*loc != 0) strsize ++; loc++;} //Gives correct value of 3283
}
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Re: Wrong result from MemHandleSize?
At 03:15 AM 1/20/2008, you wrote:
Subject: Re: Wrong result from MemHandleSize?
From: David Linker [EMAIL PROTECTED]
Date: Sun, 20 Jan 2008 00:00:06 -0800
X-Message-Number: 5
void showProblem() {
MemHandle h;
/*long int*/ UInt32 strsize;
Char * loc;
h = DmGet1Resource('tSTR', 2000);
DisplayFatalErrorIf (!h, Can't find #2000);
strsize = MemHandleSize(h); //Yields incorrect value ~ 288628
loc = (Char *)MemHandleLock(h);
DisplayFatalErrorIf (!loc, Can't lock #2000);
strsize = 0;
while (*loc != 0) strsize ++; loc++;} //Gives correct value of 3283
}
What you are doing should work and always works for other people.
I made some minor changes to the code above (for example: use UInt32
here instead of long int), especially since you have a long unsigned
value not a long int anyway.
And you should ALWAYS put in code to trap unexpected but possible
errors such as the resource not being found and not being able to lock it.
So the strong suspicion is the problem is your resource!
Roger Stringer
Marietta Systems, Inc. (www.rf-tp.com)
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