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random8743
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Joined: 26 Jun 2006
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 Posted: Fri Jul 21, 2006 5:11 pm Post subject: A quick suggestion for more 'freezing' options |
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In my UCE, I added <= (a.k.a. upper bound/limit) and >= (a.k.a. lower bound/limit) functionality for freezing values. It might be handy for others as well.
I ran across a rapidly cycling countdown timer, and freezing that timer at 0 causes a d/c. What I really wanted to do was change the upper bound of the timer without code-caving. I added upper bound and lower bound to the freeze options, and they work like a charm.
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Glest
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Location: The Netherlands
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| Posted: Fri Jul 21, 2006 11:56 pm Post subject: |
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cool.. Sounds handy, you got my support.
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linosal
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Location: http://www.thedarkalliance.org
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| Posted: Sat Jul 22, 2006 6:47 pm Post subject: Re: A quick suggestion for more 'freezing' options |
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| random8743 wrote: | In my UCE, I added <= (a.k.a. upper bound/limit) and >= (a.k.a. lower bound/limit) functionality for freezing values. It might be handy for others as well.
I ran across a rapidly cycling countdown timer, and freezing that timer at 0 causes a d/c. What I really wanted to do was change the upper bound of the timer without code-caving. I added upper bound and lower bound to the freeze options, and they work like a charm. |
Sounds cool, care to share the changes w/ db or any of the rest of us? 
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random8743
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Joined: 26 Jun 2006
Posts: 57
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| Posted: Sun Jul 23, 2006 12:53 am Post subject: |
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Sure.
Bear in mind that my changes aren't particularly clean or robust.
All of this is in MainUnit.pas
First, there's the case statement that changes the label text
| Code: |
begin
case memrec[rec].Frozendirection of
0:
begin
col:=clBlue;
temp:='=';
end;
1:
begin
temp:='-';
col:=clRed;
end;
2:
begin
temp:='+';
col:=clGreen;
end;
// Add These Two Cases
3:
begin
temp:='<=';
col:=clGreen;
end;
4:
begin
temp:='>=';
col:=clGreen;
end;
end;
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Change an 'if' statement so that you can actually use cases 3 and 4 in the first case statement
| Code: |
// old statement
// if memrec[sel].Frozendirection=3 then memrec[sel].Frozendirection:=0;
// new statement
if memrec[sel].Frozendirection=5 then memrec[sel].Frozendirection:=0;
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Then there are the hints
| Code: |
if temp='-' then freezedirection[i].Hint:=strAllowNegative;//'Allow negative changes';
if temp='+' then freezedirection[i].Hint:=strAllowPositive;//'Allow positive changes';
if temp='=' then freezedirection[i].Hint:=strNormalFreeze; //'Don''t allow any change';
// Add these two lines
if temp='<=' then freezedirection[i].Hint:=strBoundAbove; //'Don''t change to number bigger than X';
if temp='>=' then freezedirection[i].Hint:=strBoundBelow; //'Don''t change to number smaller than X';
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The actual text for the hints
| Code: | resourcestring
strAllowNegative='Allow negative changes';
strAllowPositive='Allow positive changes';
strNormalFreeze='Don''t allow any change';
// Add these two lines
strBoundAbove='Don''t go above value';
strBoundBelow='Don''t go below value';
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Finally, the code that actually does the work, and it's in another case statement.
| Code: |
case memrec[i].VarType of
0: begin
if memrec[i].Frozendirection=0 then
begin
write1:=byte(memrec[i].FrozenValue);
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end
else
begin
readprocessmemory(processhandle,pointer(realaddress),@write1,1,write);
if write=1 then
if memrec[i].Frozendirection=1 then
begin
if hotkeypressed=i then
begin
write1:=write1-memrec[i].FrozenValue; //decrease with frozenvalue
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end
else
begin
//allow decreased values
if write1<=byte(memrec[i].FrozenValue) then memrec[i].FrozenValue:=write1
else
begin
write1:=byte(memrec[i].FrozenValue);
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end;
end
end
// Add this block
// --BLOCK START--
else if memrec[i].Frozendirection=3 then
begin
if write1>byte(memrec[i].FrozenValue) then
begin
write1:=byte(memrec[i].FrozenValue);
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end
end
else if memrec[i].Frozendirection=4 then
begin
if write1<byte(memrec[i].FrozenValue) then
begin
write1:=byte(memrec[i].FrozenValue);
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end
end
// --BLOCK END--
else
begin
//allow increased values
if hotkeypressed=i then
begin
write1:=write1+memrec[i].FrozenValue; //increase with frozenvalue
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end
else
begin
if write1>=byte(memrec[i].FrozenValue) then memrec[i].FrozenValue:=write1
else
begin
write1:=byte(memrec[i].FrozenValue);
writeprocessmemory(processhandle,pointer(realaddress),addr(write1),1,write);
end;
end;
end;
end;
error:=write<>1;
end;
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Add in a similar block for each case. You will have to change the block up a bit for each case (i.e. byte becomes word or dword or...; write1 becomes write2 or write3 or...; in the call to writeprocessmemory, 1 becomes 2 or 4 or...), just take cues fron the rest of the code in each case.
Hopefully that wasn't too traumatic for all you readers. 
You'll notice there is precious little error checking (though it hopefully won't be needed) and no functionality regarding hotkeys. If you really want it, you'll need to add it yourself.
GL
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PMs may be ignored. Not trying to be rude, just trying to stay sane. Plus I'm lazy. |
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