About consumption of GDI
serval2412 at yahoo.fr
Mon May 18 09:23:15 UTC 2020
I made this test:
- launch Writer
- type 3 words and use a different font for each of them
- export in pdf
Using GDIView, it seems that each time I export in PDF, the number of GDI
Trying to use Windbg !htrace -enable, then diff
It seems LO leaks in VistaFilePickerImpl::impl_sta_ShowDialogModal
1037 if (iSave.is())
1038 hResult = iSave->Show( m_hParentWindow ); // parent window
then leave the function, the GDI number doesn't decrease.
"iSave" is declared some lines above, like this:
TFileSaveDialog iSave = m_iDialogSave;
"TFileSaveDialog " is declared like this:
typedef ComPtr< IFileSaveDialog , IID_IFileSaveDialog ,
CLSID_FileSaveDialog > TFileSaveDialog;
ComPtr is a specific class which should release handle when the instance is
I wonder if this mechanism really works as expected.
I mean, shouldn't we try to release manually in impl_sta_ShowDialogModal ?
I'm quite a beginner with Windbg + GDI stuff so my analysis may be very
incomplete or even wrong.
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