|
IOleCache2::DiscardCache
Discards the caches in memory.
HRESULT DiscardCache(
DWORD dwDiscardOptions
| //Save data or discard it
| );
|
|
Parameter
dwDiscardOptions
Indicates whether data is to be saved prior to the discard. Valid values are
from the enumeration DISCARDCACHE. Containers that have drawn a large object and need to free up memory may
want to specify DISCARDCACHE_SAVEIFDIRTY so that the newest presentation is saved
for the next time the object must be drawn.
Containers that have activated an embedded object, made some changes, and then
called IOleObject::Close(OLECLOSE_NOSAVE) to roll back the changes can specify DISCARDCACHE_NOSAVE to
ensure that the native and presentation data are not out of synchronization.
Return Values
S_OK
The cache(s) were discarded according to the value specified in dwDiscardOptions.
E_INVALIDARG
One or more arguments are invalid.
E_UNEXPECTED
An unexpected error occurred.
OLE_E_NOSTORAGE
There is no storage available for saving the data in the cache.
STG_E_MEDIUMFULL
The storage medium is full.
Comments
The IOleCache2::DiscardCache method is commonly used to handle low memory conditions by freeing memory
currently being used by presentation caches.
Once discarded, the cache will satisfy subsequent IDataObject::GetData calls by reverting to disk-based data.
See Also
DISCARDCACHE, IOleCache, IOleCacheControl
| 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
|
