🚀 go-pugleaf

Hi JD,

There's a function I haven't tried. I'm afraid I have very little
understanding of DeviceContexts. I see that BitBlt needs a source DC. I
don't have one. Rather I have an unsigned char block of memory that I
manipulate myself, held in a BITMAP structure and referenced with a
BITMAPINFO structure. Do I need to define a DC for my BITMAP? I see
functions like CreateCompatibleDC. Do I need to SelectObject an HBITMAP
for a new DC? If I change the bytes in my BITMAP.bmBits array, will
those changes appear immediately? Or do I have to SelectObject again or
CreateCompatibleDC again?

Thanks,

Rob


JD wrote:
> "Robert G. Hoover" <not.a.real.address@anywhere.sorry> wrote:
> 
>> void __fastcall TShellForm::FormCreate(TObject *Sender)
> 
> Never ever use OnCreate or OnDestroy. There are delphi
> remnants that can execute out of order (OnCreate before
> the constructor and OnDestroy after the destructor). Use the constructor and destructor instead.
> 
>> I've got 2 Pentium machines and 1 DualCore machine
> 
> Why not use the win32 API BitBlt? Works on both my P4 and
> Core2Duo.
> 
> ~ JD
>