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What do you mean by &quot;OWL's TDC classes already have the ability to save the DC state and automatically restores it afterwards.&quot;<br />

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What do you mean by "OWL's TDC classes already have the ability to save the DC state and automatically restores it afterwards."


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I have a problem with the win32 OWL app that I am writting. <br />
<br />
When Codeguard is turned on, I get an error whenever I call the SelectObject parameter of a TDC. <br />
<br />
Without Codeguard, I occassionally get program crashes and occassionally SaveDC returns 0. The crashes are always GDI failures. <br />
<br />
I have a lot of (sometimes nested) code that looks something like this:<br />
<br />
dc.SaveDC( );<br />
dc.SelectObject( GetTitleFont( ) );<br />
<br />
...<br />
<br />
dc.RestoreFont( );<br />
dc.RestoreDC( );<br />
<br />
Any ideas?
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I have a problem with the win32 OWL app that I am writting. 

When Codeguard is turned on, I get an error whenever I call the SelectObject parameter of a TDC. 

Without Codeguard, I occassionally get program crashes and occassionally SaveDC returns 0. The crashes are always GDI failures. 

I have a lot of (sometimes nested) code that looks something like this:

dc.SaveDC( );
dc.SelectObject( GetTitleFont( ) );

...

dc.RestoreFont( );
dc.RestoreDC( );

Any ideas?

GDI failure/SelectObject problem

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