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RichTextEdit (RTE) Control performance issue - Workaround
  1. Issue
  2.  TE Control
0 Votes
  1. Tor-Egil Nygaard
  2. PowerBuilder
  3. Monday, 26 March 2018 08:12 AM UTC

Problem :
Opening a window with the new RTE control is very slow when the application is run on a terminal server with printer redirection enabled, and the "default" printer is set to use the "Remote Desktop Easy print" printer driver. This happens when the client printer driver is not installed on the terminal server. If default printer is changed to a printer which is installed on the terminal server the window opens instantly.

Workaround :

It is possible to get around this problem, but it requires some work to be done and the use of windows api functions. We have used OpenPrinter, GetPrinter and SetDefaultPrinter.

First you will have to delete the RTE control on the window/tab-page. Make a note off its location ( X and Y ) and size ( width and height ).

In the preopen or open event of the window you will have to check if the default printer driver is windows "REMOTE DESKTOP EASY PRINT". If it is, take a note of the name of the printer, and then you will have to change it to a printer which is not using this driver ( i.e. the “Microsoft XPS Document Writer” ).

Now you create the RTE control, set its properties and open/create it using OpenUserObjectWithParm.

RichTextEdit     rte_control

rte_control = Create RichTextEdit

rte_control.x = 14

rte_control.y = 680

rte_control.width = 3771

rte_control.height = 980

OpenUserObjectWithParm (rte_control, "", 14, 680 )

rte_control.BringToTop = True

Now you change the default printer back to what it was originally.

It is not an ideal solution to the problem but it does make the window open much faster.

 

TEN

Know about control used in the window of powerbuilder COMO ACTIVAR EL USO DE Rich TextEdit control
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