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 ProEssentials v9 Help

PEWN_ZOOMIN

The PEWN_ZOOMIN notification message is sent to the parent window when the user selects a zoom rectangle.

 

Parameter

Description

wParam

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

lParam

Contains the Windows/ProEssentials handle for the object

 

Comments

Use the ZoomMinX, ZoomMaxX, ZoomMinY, and ZoomMaxY properties to determine the latest zoom extents selected by the user.

 

See Also: PEWN_ZOOMOUT, AllowZooming, AllowUserInterface, ProEssentials Messages

 

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.

 
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