Re: Can't Link DWT in Linux 64-bit

[Mike via Digitalmars-d-dwt]

On Monday, 14 July 2014 at 19:18:46 UTC, Jacob Carlborg wrote:

As for the guidance. I think it's easiest to just try and 
compile it for 64bit and see what errors you get. Then I can 
help with more specific problems that you encounter.


Well, I haven't tried to build yet, but I have been going through 
the source code, and I found something interesting.

I downloaded the swt source code for both Win32 and Win64, and 
compared them in WinMerge.

What's interesting is the source code is littered with stuff like 
this:

File: org/eclipse/swt/widgets/IME.java


SWT - Win32
*******************
LRESULT WM_KILLFOCUS (int /*long*/ wParam, int /*long*/ lParam) {
        if (!isInlineEnabled ()) return null;
        int /*long*/ hwnd = parent.handle;
        int /*long*/ hIMC = OS.ImmGetContext (hwnd);
        if (hIMC != 0) {
                if (OS.ImmGetOpenStatus (hIMC)) {
			OS.ImmNotifyIME (hIMC, OS.NI_COMPOSITIONSTR, OS.CPS_COMPLETE, 
0);
                }
                OS.ImmReleaseContext (hwnd, hIMC);
        }
        return null;
}

SWT - Win64
********************
LRESULT WM_KILLFOCUS (long /*int*/ wParam, long /*int*/ lParam) {
        if (!isInlineEnabled ()) return null;
        long /*int*/ hwnd = parent.handle;
        long /*int*/ hIMC = OS.ImmGetContext (hwnd);
        if (hIMC != 0) {
                if (OS.ImmGetOpenStatus (hIMC)) {
			OS.ImmNotifyIME (hIMC, OS.NI_COMPOSITIONSTR, OS.CPS_COMPLETE, 
0);
                }
                OS.ImmReleaseContext (hwnd, hIMC);
        }
        return null;
}


DWT
********************
LRESULT WM_KILLFOCUS (int /*long*/ wParam, int /*long*/ lParam) {
    if (!isInlineEnabled ()) return null;
    auto hwnd = parent.handle;
    auto hIMC = OS.ImmGetContext (hwnd);
    if (hIMC !is null) {
        if (OS.ImmGetOpenStatus (hIMC)) {
            OS.ImmNotifyIME (hIMC, OS.NI_COMPOSITIONSTR, 
OS.CPS_COMPLETE, 0);
        }
        OS.ImmReleaseContext (hwnd, hIMC);
    }
    return null;
}

It appears DWT has modeled any `Handle`s as `void*`, and 
therefore uses `auto` whenever possible.  I could probably do a 
search & replace for "int /*long*/" or "/*long*/ int" and replace 
it with "ptrdiff_t" and cover 80% of the necessary changes.

Thoughts?

Also, could you please answer the following questions for me?
* What version of SWT is the current DWT source code based on?
* How would you like me to submit pull requests?  
Little-by-little, or one big whopper?
* How does one go about testing DWT?

Thanks for the help.

Mike