Combining - Win32 Programmer's Reference

Custom Search

Combining

An application combines two regions by calling the CombineRgn function. Using this function, an application can combine the intersecting parts of two regions, all but the intersecting parts of two regions, the two original regions in their entirety, and so on. Following are five values that define the region combinations.

Value	Meaning
RGN_AND	The intersecting parts of two original regions define a new region.
RGN_COPY	A copy of the first (of the two original regions) defines a new region.
RGN_DIFF	The part of the first region that does not intersect the second defines a new region.
RGN_OR	The two original regions define a new region.
RGN_XOR	Those parts of the two original regions that do not overlap define a new region.

The following illustration shows the five possible combinations of a square and a circular region resulting from a call to CombineRgn.

Last news from Greatis Software

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

    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)

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

greatis just4fun network