Print Page - How to reduce screen flicker in a ListView

Title: How to reduce screen flicker in a ListView
Post by: Jean-pierre Leroy on October 11, 2016, 12:55:00 PM

Hi Paul,

I saw recently your reply on the PowerBASIC forum about "How to reduce screen flicker in a ListView":

https://forum.powerbasic.com/forum/user-to-user-discussions/programming/751841-how-to-reduce-screen-flicker-in-a-listview?p=751855#post751855 (https://forum.powerbasic.com/forum/user-to-user-discussions/programming/751841-how-to-reduce-screen-flicker-in-a-listview?p=751855#post751855)

Is-it possible to enable double buffering extending style (%LVS_EX_DOUBLEBUFFER) for a ListView control with FireFly ? this option doesn't seem to be available in the visual designer.

Thanks,
Jean-Pierre

Title: Re: How to reduce screen flicker in a ListView
Post by: Paul Squires on October 11, 2016, 08:52:21 PM

Hi Jean-Pierre,

You would need to add code to WM_CREATE to set the style for the Listview. Here is some FB code that I am using in my editor project to set some extended styles for the Listview.

Code Select


   ' Add some extended styles
   Dim dwExStyle As DWORD
   dwExStyle = ListView_GetExtendedListViewStyle(hLV)
   dwExStyle = dwExStyle Or LVS_EX_FULLROWSELECT Or LVS_EX_GRIDLINES Or LVS_EX_DOUBLEBUFFER Or LVS_EX_FLATSB
   ListView_SetExtendedListViewStyle(hLV, dwExStyle)

Title: Re: How to reduce screen flicker in a ListView
Post by: Jean-pierre Leroy on October 12, 2016, 06:56:47 AM

Thanks Paul.

I will follow your advice.

Regards,
Jean-Pierre

PlanetSquires Forums

Support Forums => Other Software and Code => Topic started by: Jean-pierre Leroy on October 11, 2016, 12:55:00 PM