Hi Chris,
> I wrote an application that changes a users screen when they logon. The app
> uses this API to refresh the screen :
>
> SystemParametersInfo(SPI_SETDESKWALLPAPER,0,Nil,SPIF_SENDWININICHANGE);
Instead of the "nil" parameter, I pass a PChar to a .bmp myself.
Here's my code that I use:
uses
Windows;
const
SPI_SETDESKWALLPAPER = 20;
begin
SystemParametersInfo(SPI_SETDESKWALLPAPER, 0,
PChar('c:\WINNT\D2006.bmp'), 0);
end.
This works for me (also on XP). So perhaps you need to pass a valid .bmp
file to update the desktop? (just an idea)
Groetjes,
Bob Swart (aka Dr.Bob - www.DrBob42.com)
--
Bob Swart Training & Consultancy (eBob42) - Borland Technology Partner
Blog: http://www.drbob42.com/blog - RSS: http://drbob42.com/weblog.xml
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