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   ► MB LobbyPascal and Delphi Coding Board   Print This     

Delphi Object PASCAL Topic

Object PASCAL language including OOP, classes, interfaces, types, methods, functions, procedures, etc.
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25 Threads:

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Thread 25 of 25
Thread Starter  

Lans
passing a delphi variable to a Crystal Report para
I am developing an application that uses Crystal Reports as the reporting mechanism. But I am having trouble in getting Delphi to pass a parameter to the report. Does nayone have any suggestions? Thanks.
18 years ago
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Thread 24 of 25
Thread Starter  

epicurean
BDE Configuration
{Too Long!}
16 years ago
12 replies. Last post:

Martijn.G
{Too Long!}
20 months ago
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Thread 23 of 25
Thread Starter  

Don Simmonds
Findfirst File extensions oddity?
Can anybody please explain why Findfirst, when searching for *.htm will also find .html etc. and what please is the workaround. Was this designed for dos only when there were only three letters?, The real problem is that many web sites include duplicate files one for each of the extensions. Passing the output of Findfirst to a Stringlist with duplicates trapped will not of course solve the problem., Hopefully thanks., Don Roll Eyes
17 years ago
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Thread 22 of 25
Thread Starter  

Jarmulowicz
Pascal Database Toolbox (TAccess)
Is there a Delphi component that can read the old Borland Database Toolbox files - it was a superb fast DOS database and I want to develop a reader for some old data going back to 1978!, , Thanks, , Michael Jarmulowicz
17 years ago
8 replies. Last post:

Anonymous
S.V.P Je cherche une UNIT TACCESS.PAS qui sera compatible avec BDS 2006.Merci bien. --- saidelhani
55 months ago
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Thread 21 of 25
Thread Starter  

ParaDelphi
Does Delphi support code contracts?
I was reading a bit about class contracts in Prism, does Delphi 2009 support class contracts? I've looked everywhere.
10 years ago
4 replies. Last post:

Paul.S
thanks. i have not been back in a while but wanted to say thanks for the info.,
9 years ago
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Thread 20 of 25
Thread Starter  

hyp3n0zy5
Bizarre date/time logics
Can anyone give me an explanation as to why the following first assert fails? (i use D7), , var dt1, dt2: TDateTime;, begin, dt1 := Now;, dt2 := IncHour(dt1, 1);, Assert(HoursBetween(dt1, dt2) = 1, '1st assert!');, , dt1 := Now;, dt2 := IncHour(dt1, 2);, Assert(HoursBetween(dt1, dt2) = 2, '2nd assert!');
14 years ago
8 replies. Last post:

Wes
I cast a vote, too. The bug(s) are very well documented in this QC report, and good fixes have been suggested.  This is difinitely an area that needs attention.
10 years ago
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Thread 19 of 25
Thread Starter  

hyp3n0zy5
Creating simple PDF files
Is there a free unit, component or tutorial for creating PDF files? I only need very basic features. Just be able to insert some simple text and pictures in a PDF., If somebody has experience with a good commercial PDF product, i also like to hear. But for what i need, i hope there's something free.
14 years ago
4 replies. Last post:

Wes
{Too Long!}
11 years ago
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Thread 18 of 25
Thread Starter  

hyp3n0zy5
How to fully support all locale settings?
I have a program that does a lot with strings, and is required to work everywhere in the world, so also in Asia for example. What is the way to do this in Delphi? Only use the Ansi... string functions? If i understand correctly the default string type should support this. If i write code like, , var SomeString: string;, SomeChar: char;, begin, if SomeString[1] = SomeChar then blablaDoes this work in other locales? If not how to do this? Confused How do i get the length of a string (in characters)?, , If i understand correctly the only reason Delphi is not 100% unicode is because it would break Win9x compatibility. Please go ahead Borland! I don't want to worry about this crap...
14 years ago
2 replies. Last post:

dulcaoin
{Too Long!}
14 years ago
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Thread 17 of 25
Thread Starter  

hr41pearl
vchar
I am looking for an easy way to read a users input from a badge. Inbedded on the badge is a CNTRL O to confirm that the badge is being used. So a typical response would be 1445 CNTRL O. After I know the badge is used, I just strip the 1445 and apply it to the job database. , My confusion is the vchar and vcharcode. HLEP, , hr41pearl Now that
15 years ago
1 Reply:

hr41pearl
OOOPS. Found it. Thanks anyway., , hr41pearl
15 years ago
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Thread 16 of 25
Thread Starter  

ronando
Resize form & all contained objects
Hi, I'm tring to convert some forms from PARADOX to DELPHI., i need to maximize from adn consequently all objects. In paradox i use bestfit instruction., , So can anyone give me a suggestion? I am rookie in Delphi., , Thanks, Fernando
15 years ago
1 Reply:

wpantoja
{Too Long!}
15 years ago
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Thread 15 of 25
Thread Starter  

Tim Oakley
eConvertError on StrtoDate won't recover
{Too Long!}
15 years ago
4 replies. Last post:

toakley
{Too Long!}
15 years ago
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Thread 14 of 25
Thread Starter  

Matt
TForm and TComponent
Hi,, I'm trying to find a form by browsing through Delphi's application components and show the form when the right name has been found. Unfortunately, I hit a compiler error I don't know how to go about it., , var, ShowThisForm: TForm ;, , begin, for i := 0 to ComponentCount - 1 do, begin, if Application.Components[i] is TForm then, begin, if FrmNam = Application.Components[i].Name then, begin, ShowThisForm := Application.Components[i] ;, ShowThisForm.Show ;, exit ;, end ;, end ;, end ;, end ;, , end ;
15 years ago
2 replies. Last post:

Matt
Exactly what I needed to know. Thanks a lot!!
15 years ago
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Thread 13 of 25
Thread Starter  

hidingmonkey
arrays
i want to read 1 2 3 4 or something of that format, four integers with a space inbetween from a text file. Once read i need to store each integer into an array so that it can be used later. How would i do this as i have tried many different ways and none seem to work. So for example , myArray[1]=1 , myArray[2]=2 , etc but it ignores the spaces
16 years ago
1 Reply:

Rick Carter
Hello, are you using Delphi, or some other programming language? Your code doesn't look anything like Delphi code. And I don't see any "spaces" in your code.
16 years ago
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Thread 12 of 25
Thread Starter  

epicurean
Delphi/paradox multi-user app
I'm looking for a tutorial on how to set-up delphi to access paradox 4.0 tables in a multi-user environment. Using Delphi 6 enterprise on a novel network. I've searched hi and low and can't find any information. Any suggestions would be greatly appreciated! Thanks in advance.
16 years ago
5 replies. Last post:

rt
AI, nice to see you, metaphorically speaking, back again Big Grin! , rt
16 years ago
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Thread 11 of 25
Thread Starter  

Scott Wehrly
Forum : Encryption
{Too Long!}
16 years ago
2 replies. Last post:

NevilleRichards
{Too Long!}
16 years ago
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Thread 10 of 25
Thread Starter  

Angel
Tips
{Too Long!}
16 years ago
1 Reply:

Scott
{Too Long!}
16 years ago
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Thread 9 of 25
Thread Starter  

dibefog
Break a loop
Can i terminate a (long) for,while,repeat loop when i'm tired to waiting for the end ,with a click on a button? , , And can i resume it after?, , thank you!!
16 years ago
4 replies. Last post:

NevilleRichards
A simple way of breaking-out of a long loop would be to have a pause button which sets a boolean pause variable, and include a test for that pause variable in the while loop (given one of the instructions which enables things to work while the loop is in progress).
16 years ago
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Thread 8 of 25
Thread Starter  

MerLiN
Help with Animated Forms
Hi,, I want to make my app disappear when the user double clicks on the title bar (just like a Linux app) so all that remains is the title bar, and when they double click on the title bar again the window animates back to its former self., Can anybody help me with this?, , Merlin
16 years ago
7 replies. Last post:

merlin
{Too Long!}
16 years ago
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Thread 7 of 25
Thread Starter  

MerLiN
Help with resource DLL
Hi, I've (hopefully) created a resource DLL that contains bitmaps. Can someone show me or refer me to a website that can show me how to access the bitmaps from my app?, , Thanks
16 years ago
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Thread 6 of 25
Thread Starter  

dibefog
Arrays of char
example: 'ciao', , it is possible?!? : , , array[1]:='c';, array[2]:='i';, array[3]:='a';, array[4]:='o';, , -----------------------------------, , there is a function that get the seconds from the start of pc?, , sorry but i don't know english very well!!!!!, help me!!! I I
16 years ago
6 replies. Last post:

dibefog
thank you but i found it! Big Grin! Big Grin! , the function is: " gettickcount ", it count the milliseconds from the boot of windows., thank you for the help!!!
16 years ago
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Thread 5 of 25
Thread Starter  

rt
Dates
Is it possible when using a standard MaskEdit box to get the system date to appear as a default, or is there some other cunning method to do a similar thing?, rt
16 years ago
10 replies. Last post:

rt
{Too Long!}
16 years ago
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Thread 4 of 25
Thread Starter  

Angel
Random function
{Too Long!}
16 years ago
1 Reply:

NevilleRichards
{Too Long!}
16 years ago
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Thread 3 of 25
Thread Starter  

Gordon ALLAN
Detecting Audio Silence
Hi there, I am trying to develop an application that will continuously monitor the Audio Level on the Final Output Stage of a Sound Card in a machine. This is with a view to detecting a lack of audio and then acting appropriately., , Can someone point me in the right direction?, , THanks for now, , Gordon
16 years ago
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Thread 2 of 25
Thread Starter  

newbie
simple function
Hey all, I am quite new to programming (Delphi6 particularly) and need help with a simple function. , I have many editboxes on my form, and would like to create a function that I could call everytime someone enters text in the edit box. I would like this function to chuck this text into a TStringlist that I have created. That part I have, but if someone could provide me with a view of code for the function declaration and implementation, I would greatly appreciate it., , radiobutton1, Choice : TStringlist;, , Thanks in advance., , -Newbie
17 years ago
2 replies. Last post:

Scott
{Too Long!}
17 years ago
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Thread 1 of 25
Thread Starter  

MerLiN
Arrays and Checkboxes/ComboBoxes
Does anyone know how to use arrays with Checkboxes/ComboBoxes. What I want is for the user to select an item in a combobox and if they check the checkbox it will stay checked for that item., , Merlin
17 years ago
2 replies. Last post:

ldrews
Aargh! I hate it when I forget the obvious. Look up TCheckListBox.
17 years ago
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