Steven Edwards schrieb:

On 4/28/07, Timo Kreuzer <timo.kreuzer@web.de> wrote:

MSDN is not a good reference for this function. It's description is
incomplete and wrong in some cases.
And I don't see the problem. NtGdiExtGetObjectW is not called for
GDI_OBJECT_TYPE_DC. It is only called for valid types.


If the documentation is wrong could you provide a test case showing otherwise?

I have a lot of testcases for GetObjectA/W. I will commit my GDI32 tests soon (next hour probably, after some cleanup).
The patch jimtabor referred to didn't even change any functionality except the GDI_OBJECT_TYPE_METADC case, wich I can provide a testcase for.
Please RTFC ;-)

examples:
MSDN says GetObject returns a LOGFONT, but it returnes different things depending on what you specify as count. More investigation is needed, but jimtabor has done some basics on that. Still missing: sizes not matching one of the structures. In those cases the structures get copied partly. The return value will be the count of bytes copied.

Same goes for brushes. The structure will be copied only as far as the count value specifies. But the return value will always be sizeof(LOGBRUSH)

all other types will return 0 and not copy anything if the buffer size is smaller than the structure.
...
Have a look at the gdi32_test.. and privide more tests.

Atm all my tests succeed, except some font tests, because sizes inbetween the structures are not handled and extlogpen, wich is not implemeted at all in ros.