Strange problem!!

[pererm]

I use the function:

pdc->LPtoHIMETRIC(&size);

where pdc is a CDC object : pdc = pView->GetDC()

During a long time this function returns the correct values, but now when my routines call that function the pdc fails.
I can´t understand why it fails. Can anyone help me , please.

[Paul McKenzie]

I use the function:

pdc->LPtoHIMETRIC(&size);

where pdc is a CDC object : pdc = pView->GetDC()

During a long time this function returns the correct values, but now when my routines call that function the pdc fails.
I can´t understand why it fails. Can anyone help me , please.

And the value of pView is...?

Also, please define what you mean by "pdc fails". Is it NULL? It isn't NULL but doesn't "work" correctly? Etc...

Regards,

Paul McKenzie

[2kaud]

I can´t understand why it fails.

What's the debugger saying?

[ovidiucucu]

How do you know it fails, as long as CDC::LPtoHIMETRIC returns void?

[ovidiucucu]

...anyway, the most common cause of GDI malfunction after a while, is having GDI leaks. That means, creating GDI objects (brushes, pens, fonts, etc) without destroying them when they are no more necessary. Also, you must take care of releasing GDI objects from DC before destroying them.

[OReubens]

What's the debugger saying?

Ring ding dingeding ding ding ?