Delphi_Tips Issue No# 75 - 10th July 2003

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Delphi_Tips Issue No# 75 - 10th July 2003
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Today's Delphi Tips:

TLabel - Fonts Bold - Italic -
Underlined Text And Font Size:

Bold text:
Label1.Font.Style := [fsBold];

Italic text:
Label1.Font.Style := [fsItalic];

Underlined text:
Label1.Font.Style := [fsUnderline];

Strikeout: (Line through the text)
Label1.Font.Style := [fsStrikeout];

Remove bold, italic etc.
Label1.Font.Style := [];

Changing the font size:
Label1.Font.Size := 12;

Using a TSpinEdit to change the font size:
begin
  if not (SpinEdit1.Text = '') then
    Label1.Font.Size := SpinEdit1.Value;
end;

Changing the font name:
Label1.Font.Name := 'Arial';
---
TLabel Text Alignment:

Left:
Label1.Alignment := taLeftJustify;

Center:
Label1.Alignment := taCenter;

Right:
Label1.Alignment := taRightJustify;
===
FileExists:
[function FileExists(const FileName: string): Boolean;]

Unit SysUtils - File Management Routines

The FileExists function returns True if the
file specified by FileName exists.
If the file does not exist, FileExists returns False.

procedure TForm1.Button1Click(Sender: TObject);
begin
  if (FileExists('C:\TEST.TXT')) then
   ShowMessage('Test.txt is available for editing!')
  else
   Messagedlg('Error: File TEST.TXT doesn''t exist..', mterror, [mbok],
0)
end;

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Getting The Username:

http://www.delphicollection.com/public/GregLief/gl_q&a79.html
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Cannot Run Database Desktop!
Q. I've started having a weird problem with the Database Desktop.
Whenever I try to fire it up from within Delphi, I get the error
"BDE is controlled by another .NET file".
Any suggestions?

http://www.delphicollection.com/public/GregLief/gl_q&a81.html
===
Restricting Mouse Cursor Movement:

Q. Short of writing an OnMouseMove event, is there any way to
restrict the range for moving the mouse cursor?

http://www.delphicollection.com/public/GregLief/gl_q&a84.html
===
The Delphi Collection Buttons.

http://www.specialady.com/TandR/DTips27.shtml
===
Accessing hidden properties.

http://www.delphicollection.com/public/Tips/Latium/delphi008.html
===
Delphi Tips 'n' Tricks:

http://www.delphicollection.com/public/Tips/PeterMorris/tips.htm
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Delphi Top Sites

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