Home   Index   About
Ultimate Pack


Custom Search
About Paths

A path is one of the objects associated with a device context (DC). However, unlike the default objects (the pen, the brush, and the font) that are part of any new DC, there is no default path. For more information about DCs, see Device Contexts.

To create a path and select it into a DC, it is first necessary to define the points that describe it. This is done by calling the BeginPath function, specifying the appropriate drawing functions, and then by calling the EndPath function. This combination of functions (BeginPath, drawing functions, and EndPath) constitute a path bracket. The following functions can be used in a path bracket.

AngleArc
LineTo
Polyline
Arc
MoveToEx
PolylineTo
ArcTo
Pie
PolyPolygon
Chord
PolyBezier
PolyPolyline
CloseFigure
PolyBezierTo
Rectangle
Ellipse
PolyDraw
RoundRect
ExtTextOut
Polygon
TextOut

When an application calls EndPath, Windows selects the associated path into the specified DC. (If another path had previously been selected into the DC, Windows deletes that path without saving it.) After Windows selects the path into the DC, an application can operate on the path in one of the following ways:

  • Draw the outline of the path (using the current pen).

  • Paint the interior of the path (using the current brush).

  • Draw the outline and fill the interior of the path.

  • Modify the path (converting curves to line segments).

  • Convert the path into a clip path.

  • Convert the path into a region.

  • Flatten the path by converting each curve in the path into a series of line segments.

  • Retrieve the coordinates of the lines and curves that compose a path.


Last news from Greatis Software

Nostalgia .Net     Nostalgia .Net     .Net is powerful, but not all-powerful, so sometimes we need to use Win32 API for our .Net applications. It's simple enough with Platform Invoke if you have Win32 skill, but we do not always have time to dig the ancient documentation, declare the special types that are compatible with Win32, find the values of the Win32's constants and so on. Nostalgia .Net offers several simple-to-use classes, and components that will allow you to forget about the headache of Win32 and just use the power of Win32 in your application the same way as you use the native. Net classes.  More »

Recommended software for developers

Ultimate Pack for Delphi and C++ Builder     Ultimate Pack     Component pack for Delphi and C++ Builder that contains runtime form designer, runtime object inspector, print suite and much more for the very special price.  More »

Form Designer .Net     Form Designer .Net     Unique runtime form design solution that allows to edit any form in .Net WinForms application at runtime with full source codes for only 300 euro!  More »

Print Suite .Net     Print Suite .Net     Print Suite .Net is a set of components for easy printing texts, images and grids from your WinForms applications. Full C# source codes are available  More »

Gradient Controls .Net     Gradient Controls .Net     Gradient Controls .Net offers controls with gradient background feature. Labels, panels and so on... Full C# source codes are available  More »

iGrid     Greatis iGrid     iGrid plots drawing grid right over your desktop, so you can use it everywhere, with any drawing application without any special plugins for different graphic editors.  More »


All the contacts and projects

Dmitry Vasiliev (just.dmitry)

Related Links

Software for Visual Studio .NET developers
Software for Delphi and C++ Builder developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET

More Online Helps

Win32 Programmer's Reference
Win32 Multimedia Programmer's Reference
OLE Programmer's Reference
Microsoft Windows Pen API Programmer's Reference
Microsoft Windows Sockets 2 Reference
Microsoft Windows Telephony API (TAPI) Programmer's Reference
Unix Manual Pages

Free Tech Secrets ;) Copyright © 2008-2012 Free Tech Secrets ;) greatis just4fun network just4fun