Implementation of the User32.PrintWindow

[Josselin Bardet]

Hi,

As next of the discussion on the bug 18772
(http://bugs.winehq.org/show_bug.cgi?id=18772), I send here the
implemenation for User32.PrintWindow function

I've tested it with an application that was crashing because of this
unimplemented function.

Regards
Jos

[Nikolay Sivov]

Josselin Bardet wrote:
> Hi,
>
> As next of the discussion on the bug 18772
> (http://bugs.winehq.org/show_bug.cgi?id=18772), I send here the
> implemenation for User32.PrintWindow function
>
> I've tested it with an application that was crashing because of this
> unimplemented function.
>
> Regards
> Jos
As I already said in bugzilla:
- use SendMessageW
- add FIXME for unused flags or use them
- no need for brackets around SendMessage
- add a simple test (if native send this message - you can check it 
easily with Spy in Windows)

[Josselin Bardet]

Nikolay Sivov a écrit :
> As I already said in bugzilla:
> - use SendMessageW
> - add FIXME for unused flags or use them
> - no need for brackets around SendMessage
> - add a simple test (if native send this message - you can check it 
> easily with Spy in Windows)

After testing on a real windows, it looks like native PrintWindow do not 
send WM_PRINT message, so we have to guess manually which flags to set.

Do you think PW_CLIENTONLY means PRF_CLIENT | PRF_ERASEBKGND, or 
PW_CLIENTONLY means PRF_CLIENT | PRF_ERASEBKGND | PRF_CHILDREN | 
PRF_OWNED (only removed PRF_NONCLIENT)?

And with no flag PW_CLIENTONLY means PRF_CLIENT | PRF_ERASEBKGND | 
PRF_CHILDREN | PRF_OWNED | PRF_NONCLIENT ? This was the one I tested on 
the application

[Josselin Bardet]

Nikolay Sivov a écrit :
> As I already said in bugzilla:
> - use SendMessageW
> - add FIXME for unused flags or use them
> - no need for brackets around SendMessage
> - add a simple test (if native send this message - you can check it 
> easily with Spy in Windows)

Proposed implementation:
Adding in include/winuser.h

/* PrintWindow() flags */
#define PW_CLIENTONLY   0x00000001

_________________________________________

Adding in dlls/user32/user32.spec

@ stdcall PrintWindow(long long long)

_________________________________________

Adding in dlls/user32/painting.c


/*************************************************************************
 *              PrintWindow (USER32.@)
 *
 */
BOOL WINAPI PrintWindow( HWND hwnd, HDC hdcBlt, UINT nFlags)
{
    UINT flags = PRF_CHILDREN | PRF_CLIENT | PRF_ERASEBKGND | PRF_OWNED;

    if (nFlags & PW_CLIENTONLY == 0)    flags |= PRF_NONCLIENT;
    return SendMessageW( hwnd, WM_PRINT, (WPARAM)hdcBlt, (LPARAM)flags );
}

_________________________________________

I can remake a patch if you think it's good

[Nikolay Sivov]

Josselin Bardet wrote:
> Nikolay Sivov a écrit :
> > As I already said in bugzilla:
> > - use SendMessageW
> > - add FIXME for unused flags or use them
> > - no need for brackets around SendMessage
> > - add a simple test (if native send this message - you can check it 
> > easily with Spy in Windows)
>
> Proposed implementation:
> Adding in include/winuser.h

> if (nFlags & PW_CLIENTONLY == 0)    flags |= PRF_NONCLIENT;
> It's better to use !(nFlags & PW_CLIENTONLY) for me.

Post updated version anyway.