ChangeDisplaySettingsEx driving me nuts...

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#7912

From: Graham Thompson
Date: Wed, 15 Dec 2004 10:10

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Hi fellow troopers...

I'm developing in Windows XP using BCB5, and I'm trying to disable the
secondary monitor in a two-monitor setup.

Trawling through the MSDN it looks like ChangeDisplaySettingsEx is a good
place to start ... I've enumerated my DisplayDevices like a good boy, but
when I go to call ChangeDisplaySettingsEx I get an access violation. Is
ChangeDisplaySettingsEx part of GDI+? If os, should I be initialising GDI+
with GdiplusStartup() before calling ChangeDisplaySettingsEx?

Many thanks in advance for any advice,

GT.

BTW (or should that be WTF): if I declare a spare DEVMODE struct in the
function that calls ChangeDisplaySettingsEx, I don't get an access
violation; the function succeeds but sets 'inappropriate' values.

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Subject: ChangeDisplaySettingsEx driving me nuts...
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