According to the wix docs, those properties are NotSet if the API errors out. So, without testing, I would suppose that you would need (for your error message's condition):
((WIX_DIRECTX_PIXELSHADERVERSION < 200) OR NOT WIX_DIRECTX_PIXELSHADERVERSION) AND ((WIX_DIRECTX_VERTEXSHADERVERSION < 200) OR NOT WIX_DIRECTX_VERTEXSHADERVERSION) Or possibly (more simply, if the values don't really matter): (NOT WIX_DIRECTX_PIXELSHADERVERSION) AND (NOT WIX_DIRECTX_VERTEXSHADERVERSION) -----Original Message----- From: Dominique Louis [mailto:dominique.lo...@amxeurope.com] Sent: Friday, October 02, 2009 8:03 AM To: General discussion for Windows Installer XML toolset. Subject: [WiX-users] CustomAction Error not displaying... Hi all, I'm trying to detect if certain pixel and vertex shaders are installed on a machine. I have followed the exampled in the Wix 3.0 help, but I'm not getting the desired error message. <PropertyRef Id="WIX_DIRECTX_PIXELSHADERVERSION"/> <PropertyRef Id="WIX_DIRECTX_VERTEXSHADERVERSION"/> <CustomAction Id="CA_CheckPixelVertexShaderVersion" Error="[ProductName] This application requires DirectX 9 with pixel shader and vertex shader version 2.0 or greater, for Previewer to work correctly." /> <InstallExecuteSequence> <!-- Things to do during install --> <Custom Action="CA_CheckPixelVertexShaderVersion" After="WixQueryDirectXCaps"> <![CDATA[(WIX_DIRECTX_PIXELSHADERVERSION < 200) AND (WIX_DIRECTX_VERTEXSHADERVERSION < 200) ]]> </Custom> <!-- Things to do during uninstall --> </InstallExecuteSequence> <InstallUISequence> <Custom Action="CA_CheckPixelVertexShaderVersion" After="WixQueryDirectXCaps"> <![CDATA[(WIX_DIRECTX_PIXELSHADERVERSION < 200) AND (WIX_DIRECTX_VERTEXSHADERVERSION < 200) ]]> </Custom> </InstallUISequence> When I run the above code on a virtual machine, which obviously does not have the required pixel shader support, the log files says... Action 14:36:53: WixQueryDirectXCaps. Action start 14:36:53: WixQueryDirectXCaps. WixQueryDirectXCaps: Error 0x8876086a: GetDeviceCaps call failed Action ended 14:36:54: WixQueryDirectXCaps. Return value 1. But My error message is never displayed. When I run it on a real machine I correctly get the WIX_DIRECTX_PIXELSHADERVERSION and WIX_DIRECTX_VERTEXSHADERVERSION variables set with the right values. What am I missing/doing wrong? Thanks, DOMINIQUE LOUIS | IS DEVELOPER, AMX DIGITAL MEDIA GROUP AMX UK| 6TH FLOOR SALISBURY HOUSE,| LONDON WALL | LONDON | EC2M 5QQ www.amx.com AMX AMX UK Auster Road Clifton Moor York, North Yorkshire United Kingdom YO30 4GD +44 (0) 1904 343100 office +44 (0) 1904 343101 fax AMX South 6th Floor Salisbury House London Wall London United Kingdom EC2M 5QQ +44 (0) 2076 529450 office +44 (0) 8701 991661 fax AMX Belgium Boerenkrijglaan, 96a B-2260 Westerlo Belgium + 32 (0) 1454 2763 office + 32 (0) 1454 2766 fax ###################################################################### Attention: This e-mail message is privileged and confidential. If you are not the intended recipient please delete the message and notify the sender. Any views or opinions presented are solely those of the author. This email was scanned and cleared by NetIQ MailMarshal. ###################################################################### ---------------------------------------------------------------------------- -- Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Come build with us! The BlackBerry® Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9-12, 2009. Register now! http://p.sf.net/sfu/devconf _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
