Silverlight for Windows Embedded Compact 7 -> Assertion in BlurEffect.dll while loading Application

Question

Hi,

i recently started working with Silverlight 3 for Windows Embedded Compact 7.

I first created an Test XAML Project with MS Blend 3 (Project Silverlight for Embedded) and converted it using MS Visual Studio 2005 to an application for smart devices (intelligentes Gerät).

This works so far. Using the debugger the application throws 3 assertions and then the GUI appears. So it seems the BlurEffect.dll, DropShadowEffect.dll and RippleEffect.dll threw those exceptions.

The problem is, I cannot this happens while the application starts and I am not able to step/debug the line/sourcecode where this assertion happens.

So any Ideas on how to solve this Problem would be highly appreciated!

Thx,

Tobias

 

While the application start, the following dll are loaded:

Modul laden: TestApp.exe
Modul laden: locale.dll
Modul laden: normalize.dll
Modul laden: fpcrt.dll
Modul laden: xamlruntimecore.dll
Modul laden: xmllite.dll
Modul laden: xamlruntime.dll
Modul laden: coredll.dll
CePerf.dll is absent - performance data will not be recorded
Modul laden: xamlrenderplugin.dll
Modul laden: libEGL.dll
Modul laden: libnvrm.dll
Modul laden: libnvos.dll
Modul laden: libnvrm_graphics.dll
Modul laden: libnvwsi.dll
Modul laden: libnvddk_2d_v2.dll
Modul laden: libGLESv2.dll
Modul laden: libnvddk_2d.dll
Modul laden: BlurEffect.dll

*** ASSERTION FAILED in d:\chelanrtm14\private\winceos\coreos\core\corelibc\crtw32\h\tcsncpy_s.inl:53
Buffer is too small
Modul laden: DropShadowEffect.dll

*** ASSERTION FAILED in d:\chelanrtm14\private\winceos\coreos\core\corelibc\crtw32\h\tcsncpy_s.inl:53
Buffer is too small
Modul laden: RippleEffect.dll

*** ASSERTION FAILED in d:\chelanrtm14\private\winceos\coreos\core\corelibc\crtw32\h\tcsncpy_s.inl:53
Buffer is too small
Modul laden: libcgdrv.dll
Modul entladen: libcgdrv.dll
Modul laden: oleaut32.dll
Modul laden: rpcrt4legacy.dll
Modul laden: lpcrt.dll
Modul laden: bcrypt.dll
Modul laden: ole32.dll

Answer 1

Hello Tobias Holstein,

Please look at this. Maybe it can help you further:

Configure Virtual CEPC for Silverlight for Windows Embedded Compact 7

Best regards,

Robert

Answer 2

Hi Robert,

thanks for response! sadly it didn't help much.

Seems there is a problem with one of the hardware graphics drivers provided by the manufacturer of the board, so no way to fix this problem at the moment.

I found a workaround by editing the registry though:

In

HKEY_LOCAL_MACHINE\XamlRuntime\EffectLibraries\

delete the Keys:

XamlEffect1 = "BlurEffect.dll"
XamlEffect2 = "DropShadowEffect.dll"
XamlEffect3 = "RippleEffect.dll"

The Silverlight Runtime will therefore ignore the DLLs, when an application is started/loaded.

It's not supposed to be perfect, but it works.

regards

Tobias

 

Answer 3

how do I delete this entries? I don't see them in any *.reg files

Answer 4

This topic really helps! Thank you all!

The path of the related *.reg file is:

C:\WINCE700\public\common\oak\files\common.reg

Another file that may be related is:

C:\WINCE700\public\cebase\oak\misc\winceos.bat

Answer 5

Hi.

I suppose it is caused by an incorrect parameter passed to wcscpy_s in DLLentry.cpp for BlurEffect, DropShadowEffect and RippleEffect.

Apply the change described below.

// wcsncpy_s( dpCurSettings.lpszName, L"BlurEffect", 32 );
wcsncpy_s( dpCurSettings.lpszName, L"BlurEffect", wcslen(L"BlurEffect") + 1 );

Don't forget to replace the library name string as appropriate.