🚀 go-pugleaf

On Sun, 13 May 2007 18:04:22 -0700, Bob Gonder
<notbg@notmindspring.invalid> wrote in
borland.public.cppbuilder.nativeapi:

>>  TClipboard *cb=Clipboard();
>>  cb->Open();
>>  int TextHandle = cb->GetAsHandle(CF_TEXT);
>
>You want CF_UNICODETEXT for unicode text.
>Since that is not a listed format for TClipboard, you might want to
>write your own clipboard functions with the WinApi. It's not hard.

CF_UNICODETEXT is not in the help file, so how was I to know? It is
accepted though, and it works with wchar_t. However, there are more
than a million Unicode characters, which means that wchar_t, which is
only 16 bits, is insufficient. However, I guess that it will seldon
happen that I need more than 16 bits.

>You might try this from thr help:
>void __fastcall TMainForm::EditPasteClick(TObject* Sender)
>{    RichEdit1->PasteFromClipboard();
>}

That won't do. RichEdit does not accept Unicode. That was where the
problem started: I used to enter data in my program by type ^V in a
TMemo, or a TRichEdit. That was satisfactory as long as there were no
Uni characters in the clipboard.

>>To write into the clipboard, I found that SetAsHandle (the obvious
>>opposite of GetAsHandle) is unusable. It takes an int as second
>>parameter, and I want to store a lot more.
>
>It takes a Handle. That is, the same kind of thing you got above:
>	HGLOBAL  h = GlobalAlloc( size, flags );
>	char * data = GlobalLock( h );
>	lstrcpy( data, "This goes to the clipboard" );
>	GlobalUnlock( h );
>	SetAsHandle( CF_TEXT, h );
>	// -Do-not- GlobalFree because clipboard owns it.
>(You are going to be doing the same thing if you use the WinApi.)

Some changes are obviously needed:
1. char must be wchar_t of course. Or even something with 32 bits
2. I swapped the parameters of GlobalAlloc. 
3. I found that HGLOBAL equals void* (I hate those enigmatic type
names). 
4. The 2nd parameter of SetAsHandle must be an int, so your example
doesn't work. I can write (int)h, but this write unexpected stuff to
the clipboard.

So I can read the clipboard now, but I cannot write yet.
-- 
Jos�