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Overview |
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Group |
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Quick Info
Windows NT
| Yes
| Win95
| Yes
| Win32s
| No
| Import Library
| gdi32.lib
| Header File
| wingdi.h
| Unicode
| No
| Platform Notes
| Windows 95: 16-bit coordinates only
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GetClipRgn
The GetClipRgn function retrieves a handle identifying the current application-defined
clipping region for the specified device context.
int GetClipRgn(
HDC hdc,
| // handle of device context
| HRGN hrgn
| // handle of region
| );
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Parameters
hdc
Identifies the device context.
hrgn
Identifies an existing region before the function is called. After the
function returns, this parameter identifies a copy of the current clipping region.
Return Values
If the function succeeds and there is no clipping region for the given device
context, the return value is zero. If the function succeeds and there is a
clipping region for the given device context, the return value is 1. If an error
occurs, the return value is  1.
Remarks
An application-defined clipping region is a clipping region identified by the SelectClipRgn function. It is not a clipping region created when the application calls the BeginPaint function.
If the function succeeds, the hrgn parameter identifies a copy of the current clipping region. Subsequent
changes to this copy will not affect the current clipping region.
See Also
BeginPaint, SelectClipRgn
Related Links
Software for Delphi and C++ Builder developers
Software for Visual Studio .NET developers
Software for Visual Basic 6 developers
Delphi Tips&Tricks
MegaDetailed.NET
More Online Helps
Win32 Multimedia Programmer's Reference (mmedia.hlp)
OLE Programmer's Reference (ole.hlp)
Microsoft Windows Pen API Programmer's Reference (penapi.hlp)
Microsoft Windows Sockets 2 Reference (sock2.hlp)
Microsoft Windows Telephony API (TAPI) Programmer's Reference (tapi.hlp)
Unix Manual Pages
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