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New Stuff Since Your Last Visit 1. Comment about Advanced Delphi: Resize Drop-down List
Posted to KB Topic: Using Controls  « Delphi KB
48 hours ago, Updated 48 hours ago by

Jack.P
Nothing New Since Your Last Visit
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2. problem with the code- dont know where
{Too Long!}
Posted to MB Topic: Delphi VCL  « Delphi Board
9 years ago

pkakkar
Nothing New Since Your Last Visit
1473
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3. 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
Posted to MB Topic: Delphi Object PASCAL  « Delphi Board
15 years ago

Don Simmonds
Nothing New Since Your Last Visit
5015
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4. Making a spectrogram
I have written a program that does soundanalyses with a FFT-function. To view the data I want to display it in a spectrogram. The method I have applied now is drawing the frequencies on the vertical axis and time on the horizontal axis. The amplitude of the signal is displayed using different colors. To draw the colors on the bitmap I currently use the Pixel function of the Canvas, but this goes really slow., , My question is : Is there another, faster method to draw colors on the bitmap; keeping in mind that every pixel could have another color?
Posted to MB Topic: Delphi Single User Apps  « Delphi Board
16 years ago

Negative
Nothing New Since Your Last Visit
1719
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5. TIdTCPServer form Indy - Bind
Hello,, , I am trying to build a TCP server with the TIdTCPServer component from INDY. I want to use the BIND property , but It does not seem to work. , , I am using a file containing IP addresses which I want to bind. , , My code looks like this:, , while not Eof(lh_config) do, begin, readln(lh_config, ls_line); , TelnetServer.Bindings.Add;, TelnetServer.Bindings.Item[i].IP :=ls_line;, TelnetServer.Bindings.Items[i].Port := , StrToInt(gb_TELNETPort);, TelnetServer.Bindings.Items , [i].AllocateSocket(3,255); , TelenetServer.Bindings.Items, [i].Bind , inc(i);, end;, , when it tries to execute the bind procedure it outputs an error 10038 and closes the connection., , What am I doing wrong?, , Thank you in advance,, , Katerina
Posted to MB Topic: Delphi Internet Solutions  « Delphi Board
16 years ago

Len
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1162
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6. Delphi/Outlook OLE automation
Is there someone who knows how to set the, 'ActiveWindow.Envelope.Visible' property (Visual Basic) in a Word document, from Delphi?, Thank you.
Posted to MB Topic: Delphi News / Other  « Delphi Board
16 years ago

rogeriocunha
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5523
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7. Help: Removing the SQL cursor
Does anyone know how to remove the SQL mouse cursor when accessing the BDE?
Posted to MB Topic: Delphi News / Other  « Delphi Board
16 years ago

andyhud
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2238
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8. convert paradox source code to delphi source code
we need to find an easy way to convert the source code of an application written in Paradox for Windows into Delphi 5. , Any ideas?????
Posted to MB Topic: Delphi News / Other  « Delphi Board
17 years ago

centaman
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New: Delphi Message Board Posts

Go To: Delphi Message Board

Thread 5 of 5
Thread Starter  

andyhud
Help: Removing the SQL cursor
Does anyone know how to remove the SQL mouse cursor when accessing the BDE?
Posted to MB Topic: Delphi News / Other
16 years ago
Nothing New Since Your Last Visit
5523
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Thread 4 of 5
Thread Starter  

rogeriocunha
Delphi/Outlook OLE automation
Is there someone who knows how to set the, 'ActiveWindow.Envelope.Visible' property (Visual Basic) in a Word document, from Delphi?, Thank you.
Posted to MB Topic: Delphi News / Other
16 years ago
Nothing New Since Your Last Visit
1162
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Thread 3 of 5
Thread Starter  

centaman
convert paradox source code to delphi source code
we need to find an easy way to convert the source code of an application written in Paradox for Windows into Delphi 5. , Any ideas?????
Posted to MB Topic: Delphi News / Other
17 years ago
Nothing New Since Your Last Visit
2238
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Thread 2 of 5
Thread Starter  

pkakkar
problem with the code- dont know where
{Too Long!}
Posted to MB Topic: Delphi VCL
9 years ago
Nothing New Since Your Last Visit
16625
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Thread 1 of 5
Thread Starter  

Negative
Making a spectrogram
I have written a program that does soundanalyses with a FFT-function. To view the data I want to display it in a spectrogram. The method I have applied now is drawing the frequencies on the vertical axis and time on the horizontal axis. The amplitude of the signal is displayed using different colors. To draw the colors on the bitmap I currently use the Pixel function of the Canvas, but this goes really slow., , My question is : Is there another, faster method to draw colors on the bitmap; keeping in mind that every pixel could have another color?
Posted to MB Topic: Delphi Single User Apps
16 years ago
Nothing New Since Your Last Visit
5015
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More...

New: Delphi Knowledge Base Posts

Go To: Delphi Knowledge Base
  KB Article    

Wes Peterson
1. The Case for Delphi (On the Desktop)

In 1995 Borland revolutionized the world of software development when they introduced Delphi.

It had the distinction of being the first integrated development environment (IDE) featuring a fully object-oriented language and a blazing-fast compiler that produced highly optimized, native Intel machine code. Programs written in Delphi were among the fastest in existence – and still are.

After all these years, is Delphi still relevant?

You bet it is! (And, in many cases, it is still your best bet.)

Here's why...

Posted to KB Topic: Delphi for Win32
35 months ago

Article
Nothing New Since Your Last Visit
2574
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Wes Peterson
2. Where Does Your Data Belong?

Back in the wild and wooly days of C/PM, DOS, and early versions of Windows, we programmers could store our data pretty much anywhere. It might not have been a good idea, but we could get away with it.

Things have changed drastically!!

If your program stores data, you need to know where it belongs, and that varies quite a bit from one version of Windows to others.

Read on to find out where your data belongs.

Posted to KB Topic: Delphi for Win32
35 months ago

Article
Nothing New Since Your Last Visit
2978
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Wes Peterson
3. TDBGrid: Rerarranging Columns at Will

Delphi's TDBGrid is an incredibly useful component; one you'd expect to find in any professional development tool.

One of it's handy behaviors is that users can click in column headers and drag to rearrange column ordering to their liking.

Unfortunately, TDBGrid doesn't offer the developer any really easy way to rearrange grid columns from code. This is inconvenient because you might offer the user a choice of various columns upon which they can search, and it would be nice to make their chosen column the leftmost - at least. Often it makes sense to rearrange other columns as well.

This little class allows you to do that.

It has no exposed methods, and only two properties, so it's incredibly easy to use.

Read on to learn how it works and to get the code.

Posted to KB Topic: Using Controls
45 months ago

Article
Nothing New Since Your Last Visit
6408
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Wes Peterson
4. Grid, Column Order List

Delphi's TDBGrid is an incredibly useful component; one you'd expect to find in any professional development tool.

One of it's handy behaviors is that users can click in column headers and drag to rearrange column ordering to their liking.

Unfortunately, TDBGrid doesn't offer the developer any really convenient way to rearrange grid columns from code. This is inconvenient because you might offer the user a choice of various columns upon which they can search and it would be nice to make their chosen column the leftmost - at least. Often it makes sense to rearrange other columns as well.

This little class allows you to do that.

It has no exposed methods, and only two properties, so it's incredibly easy to use. Here are the steps:

1: Set up your TDBGrid. It must already be populated with the desired column specifications before using this little grid manager. Let's say it's named DBGrid1.

2: Instantiate an instance of TDBGridColumnManager:

  MyGridManager := TDBGridColumnManager.Create;

3: Specify the grid that TDBGridColumnManager jis intended to manage.

MyGridManager.Grid := DBGrid1;

4: From then on, you can rearrange the grids columns any time by simply setting the other property, ColumnOrderList, a string. When you do, the columns are reordered instantly.

ColumnOrderList should be a string of data column names separated by commas. Note that I said data column names, not header title captions; In a TDBGrid, these are the names assigned to the FieldName property of each column.

How it works:

The TDBGridColumnManager

Posted to KB Topic: Using Controls
[DRAFT]
46 months ago

Code
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1
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New: To/From Code

Go To: Delphi To/From Guides

Code Snippets

  Code Snippet Created
1. Array 3/23/2010
2. Comments 1/1/2009
3. Sealed class 1/1/2009
4. Abstraction 1/1/2009
5. End of Statement 1/1/2009
6. Case Sensitivity 1/1/2009
7. Literals 1/1/2009
8. Variables 1/1/2009
9. Assignment 1/1/2009
10. String Concatenation 1/1/2009

Topics

  Topic Category Created
1. Array Data Structures 3/20/2010
2. Comments Language Basics 1/1/2009
3. Left of String Commands 1/1/2009
4. Prevent Derivation OOP Details 1/1/2009
5. Abstraction OOP Details 1/1/2009
6. End of Statement Language Basics 1/1/2009
7. Case Sensitivity Language Basics 1/1/2009
8. Literals Language Basics 1/1/2009
9. Variables Language Basics 1/1/2009
10. Assignment Operators 1/1/2009

New: eCertified Study Questions

Go To: eCertified
Question Level Type Based on KB Post KB Topic
{Too Long!} 1 MC {Too Long!} Delphi for Win32
{Too Long!} 2 MC {Too Long!} Language Details
{Too Long!} 1 TF {Too Long!} Tool Basics
{Too Long!} 1 MC {Too Long!} Language Basics
{Too Long!} 1 MC {Too Long!} Language Basics
{Too Long!} 1 YN {Too Long!} Language Basics
The method name of a constructor is? 2 MC {Too Long!} OOP
{Too Long!} 2 TF {Too Long!} OOP
{Too Long!} 1 MC {Too Long!} Language Basics
{Too Long!} 2 MC {Too Long!} Language Basics

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