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Multiple Level Undo/Redo Georgia

Advanced mechanism for implementing undo/redo into your MFC application

Local Companies

Powerserve International
706-826-1506
929 Broad Street
Augusta, GA
Ingenium Software
770-394-7724
1851 Peeler Road
Atlanta, GA
Ingenium Software
770-394-7724
1851 Peeler Road
Atlanta, GA
SecuredPay Solutions, Inc.
404-324-3449
640 MCGILL PL NE
Atlanta, GA
Langa Technical Services
404-754-3410
P.O. Box 2173
Alpharetta, GA
Wireless Vision, Inc
800-661-1560
9493 Jonica Gap Rd
Morganton, GA
Thrive Technologies Inc.
404-526-6160
1899 Lake Road
Hiram, GA
Ingenium Software
770-394-7724
1851 Peeler Road
Atlanta, GA
Inside Corp
770-828-0100
4279 Roswell Rd
Atlanta, GA
TrueSoft
408-647-1434
10595 Pinewalk Forest Circle
Alpharetta, GA

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Originally published at Internet.com

INSTRUCTIONS
These are the steps used in the project file to add multi-level undo/redo capability to the Scribble application.

Copy Files

* Copy scribble tutorial files (I used step 3) into new folder. * Copy "command" and "ref object" files into the folder and add them to the project. You could also put them in a library which would be more convenient. These files are: Command.h Command.cpp CommandHistory.h CommandHistory.cpp RefObject.h RefObject.cpp * Add includes for RefObject.h, Command.h, and CommandHistory.h to stdafx.h

Edit Resources * Add undo/redo buttons to the IDR_MAINFRAME toolbar. Make sure their id's are ID_EDIT_UNDO and ID_EDIT_REDO (there are string table entries for both in MFC). You can grab the images from this project. * Add "&Redo" to the IDR_SCRIBBTYPE edit menu and use ID_EDIT_REDO command id.

CStroke Changes * Derive CStroke from CRefObject instead of CObject * Change CStroke's IMPLEMENT_SERIAL macro to use new base class * Under "Operations" add GetBoundingRect declaration to CStroke: CRect GetBoundingRect() const; * Add CStroke::GetBoundingRect definition to ScribDoc.cpp * Immediately after class definition, add CStrokeList typedef for easy use: typedef CTypedRefObList< CStroke* > CStrokeList; ...

Read article at Internet.com site

Featured Local Company

Wireless Vision, Inc

800-661-1560
9493 Jonica Gap Rd
Morganton, GA
http://www.wirelessvision.com
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