[Qtce-preview-feedback] Qt and Windows CE 5.0 TrueType Problem

[Maurice Kalinowski]

Hi again,

George H. Locktish wrote:
> I do have the OS configured with TrueType font support.  Currently, I
> have the Tahoma font installed.  Are there certain fonts that are
> required to be installed on the system?
>   
No, Qt/WinCE should be independent from what fonts are installed. We 
have recognized issues with raster fonts in the past, but as far as I 
know, these have been fixed in the meantime.

> The DEBUGCHK message prevents the application from running entirely.
>
> The stack trace from Platform Builder is:
> GWES!Gdi::ExtTextOutW_I(HDC__ * 0x003602e4, int 16, int 12, unsigned int
> 16, const tagRECT * 0x00000000, const unsigned short * 0x18917ad0,
> unsigned int 1, const int * 0x00000000)  line 1590 + 60 bytes
>
> NK!SC_ExtTextOutW(HDC__ * 0x00000000, int 412187344, int 1, unsigned int
> 0, const tagRECT * 0x838f5b6c, const unsigned short * 0x0a000000,
> unsigned int 2205825960, const int * 0x00000000)  line 974 + 76 bytes
>
> COREDLL!ExtTextOutW(HDC__ * 0x003602e4, int 16, int 12, unsigned int 16,
> const tagRECT * 0x00000000, const unsigned short * 0x18917ad0, unsigned
> int 1, const int * 0x00000000)  line 615 + 72 bytes
>
> 181fb47c()
>   
Using a search engine forwarded me to the following link:
http://www.tech-archive.net/Archive/WindowsCE/microsoft.public.windowsce.platbuilder/2004-11/0456.html

This describes a similar situation, where an exception is caused by a 
missing setting in platform builder. Maybe this already helps you?
>
> The call stack only contains the symbols from the system DLLs.  I have
> built the Qt GUI application in debug mode, but I am not getting debug
> symbols.
>   
This is very unfortunate. In case above link did not help you, could you 
please set a breakpoint at the locations, where we call ExtTextOut and 
check which one of these is causing the problem? There are only few 
where we pass on to the native call:

<qtdir>/src/gui/painting/qpaintengine_raster.cpp:5253
<qtdir>/src/gui/painting/qpaintengine_raster.cpp:5288
<qtdir>/src/gui/painting/qpaintengine_raster.cpp:5296

It should fail at one of these locations. To be 100% sure we have two 
calls in the compatibility file in 
<qtdir>/src/gui/kernel/qguifunctions_wince.cpp, but these are there for 
legacy reasons and should not affect you.

Thank you very much for your help in advance.


Best Regards,

Maurice Kalinowski