LOCAL: Not enough space in GDI heap

Fabian Cenedese Cenedese at indel.ch
Mon Feb 9 10:44:15 CST 2004

>> I hacked some more and need an advice. I changed font.cpp: CreateFontIndirectW
>> a bit. Instead of always allocating a new gdi object it has a list of already
>> allocated font objects and first tests if there was already a font allocated
>> with the same logical properties (LOGFONTW). If so it just returns the
>> existing HFONT and doesn't allocate a new one. With this change my
>> VB app with the many controls comes up and is almost usable. Some
>> fonts on the registers of the tab control look quite strange. But besides
>> that it works.
>> Now is this a reasonable change (apart from its hacky implementation
>> now :) ? Is the function CreateFontIndirect allowed to do something like
>> this? Are there more things I should test than just the ones in the
>> LOGFONTW struct? If anybody is interested in a screenshot (the
>> funny fonts go down by about 20 degrees :) just raise your hand.
>No, this isn't right.  You can convince yourself of this by a quick
>test program on Windows; initialize a LOGFONT and then call
>CreateFontIndirect twice, you'll get two different hfonts back.
>I suspect your leak happens in the olefont implementation.  You want
>to check that each hfont is destroyed when the IOleFont interface is

I also sometimes had this in mind as I couldn't find OLEFontImpl_Release
calling OLEFontImpl_Destroy in my logs. The reference pointer never
seems to become 0. So I will have a look into this.


bye  Fabi

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