|
TrimPenData
- 0
Removes selected data from an HPENDATA object.
HPENDATA TrimPenData( HPENDATA hpndt, DWORD dwTrimOptions, DWORD dwReserved )
Parameters
hpndt
Handle to the HPENDATA object.
dwTrimOptions
The following option flags are listed in the order in which the trimming
operations are performed. For example, OEM data is removed (TPD_OEMDATA) before
duplicate points (TPD_COLLINEAR).
Constant
| Description
| TPD_RECALCSIZE
| Recalculate size of pen data and reallocate if smaller.
| TPD_UPPOINTS
| Remove pen-up strokes from the HPENDATA object.
| PHW_PRESSURE
| Remove OEM pressure information.
| PHW_HEIGHT
| Remove OEM height information.
| PHW_ANGLEXY
| Remove OEM XY-angle information.
| PHW_ANGLEZ
| Remove OEM Z-angle information.
| PHW_BARRELROTATION
| Remove OEM barrel rotation information.
| PHW_OEMSPECIFIC
| Remove OEM-specific value information.
| PHW_PDK
| Remove per-point Pen Driver Kit (PDK_) information.
| TPD_PHW
| Remove all OEM and PDK information, but not stroke tick or user data.
| TPD_OEMDATA
| Remove all OEM values and PDK data.
| TPD_PENINFO
| Remove PENINFO structure from header. Note that any OEM information present is discarded.
| TPD_COLLINEAR
| Remove collinear and duplicate (coincident) points. There may not be any OEM
data.
| TPD_USER
| Remove per-stroke user information.
| TPD_TIME
| Remove per-stroke timing information.
| TPD_EMPTYSTROKES
| Remove all strokes with 0 points.
| TPD_EVERYTHING
| Remove everything possible except pen-down strokes. This includes both TPD_
and PHW_ flags.
|
dwReserved
Must be 0.
Return Value
Returns PDR_OK if successful; otherwise, it returns one of the following
negative values:
Constant
| Description
| PDR_COMPRESSED
| The pen data was compressed.
| PDR_ERROR
| An unspecified memory error occurred.
| PDR_MEMERR
| Memory error.
| PDR_OEMDATAERR
| The pen data does not have specific pressure or height (PHW_) information.
Thus, the specified PHW_ data could not be selectively trimmed. Use TPD_OEMDATA to
remove all OEM information.
| PDR_PNDTERR
| Invalid pen data.
| PDR_VERSIONERR
| A version 1.0 pen data object could not be converted to the 2.0 format.
|
Comments
TrimPenData supplements the capabilities of CompressPenData. Together, these two functions replace the version 1.0 Pen API function CompactPenData, which is supported for compatibility only.
The data that hpndt points to must not be compressed. If it is, TrimPenData simply retrieves the original (untrimmed) pen data.
See Also
CompactPenData, CompressPenData, PDK_
| 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 projectsDmitry Vasiliev (just.dmitry)
Related LinksSoftware 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
|
