Delphi Tips at Delphi Pages

AddDelphi Tips

Default Outlook Profile's SMTP Address - 29 June, 2009 - Eddie Shipman

uses ..., Outlook2000, MAPIDefs, MAPIUtil;

var
pmOutlook: _Application;
NameSpace: _NameSpace;
DefaultUser: Recipient;
_AddressEntry: AddressEntry;
...

Barcodes and Delphi - 31 December, 2007 - Stijn Sanders

Barcodes generally consist of a series of alternately black and white bars, of varying width. The pattern is defined by encoding the data the barcode represents, using a set of pre-defined patterns and optionally additional mathematical operations...

How to convert between binary, octal, decimal and hexadecimal - 04 May, 2007 - Derek Van Daal

unit NumSystems;

// *****************************************************
// * *
// * 2007 by Derek van Daal *
// * derek_vdaal...

How crypt/decrypt the file in Crypt API? - 21 March, 2007 - Mike Shkolnik

Hello,

in last time I worked a lot with crypt algorithmes and today I want to post the new tip with sample code where I'll show how you may crypt and decrypt any file using standard Crypt API which is available in MS Windows.
...

add chevron to TToolbar if some buttons are invisible (part 2) - 27 April, 2006 - Mike Shkolnik

Hello,

today I want to continue the previous tip and describe how to open the popup menu with invisible buttons of toolbar by click in chevron
button.

Drop the TPopupMenu component on your form and change...

add chevron to TToolbar if some buttons are invisible - 26 April, 2006 - Mike Shkolnik

Friends,

I sure you saw the cool feature of toolbar in all products of Microsoft (Internet Explorer, MS Office, Outlook Express etc) - when width of toolbar is less than total width of all buttons, then in right side of toolbar you...

Power management procedure (shutdown,log off, screensaver, etc) - 01 April, 2006 - Deto Rahardi

[delphi]//I guess it will works in all windows
function PowerMng(Action:String;Force:Boolean):boolean;
var rl: Cardinal;
hToken: Cardinal;
tkp: TOKEN_PRIVILEGES;
begin
if Win32Platform =...

Find the convex hull or a set of 2D points - 03 March, 2006 - Peter Bone

Uses the Graham's scan method to find the convex hull of a set of 2D points.

[delphi]type
TPointArray = array of TPoint;

// return the boundary points of the convex hull of a set of points
//...

Convert a colour bitmap to greyscale - 03 March, 2006 - Peter Bone

IRatio and CRatio adjust the intensity and contrast.

[delphi]type
TRGB = record
B : byte;
G : byte;
R : byte;
end;
TRGBArray = array[0..32767] of TRGB;
PRGBArray =...

Rotate a bitmap by any angle - 03 March, 2006 - Peter Bone

iRotationAxis, jRotationAxis is the center of rotation.
You can speed this up a lot by creating an array of scanlines for the input and output bitmaps before calling the procedure, then replace the Scanline calls in the procedure with an...

Home

Forum

Delphi Information

Downloads

News

Others