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 ProEssentials v9 Help

PEWN_PREVSCROLL

his notification message is sent to the parent window immediately before ProEssentials processes a WM_VSCROLL message.

 

The developer reads SBCode and SBCode to determine the type of scroll action about to be processed.

 

Parameter

Description

wParam

Specifies the control identifier in its low-order word and the PEWN_PREVSCROLL notification code in its high-order word.

lParam

Contains the Windows/ProEssentials handle for the object

 

Comments

.NET developers use the PePreVScroll event.

OCX/VCL developers use the PreVScroll event.

 

See Also: PEWN_PREHSCROLL, SBCode, SBCode

 

For an example: See the included VC6 Example Project, "PEVIEW.CPP" file, OnCommand handler for an example of event processing. This project will load into VC6 or Visual Studio .NET.