I trying to add WM_DROPFILES event for the windows version of DWT. I spent few hours studying the DWT internals... I defined new event in DWT, added new event class and all the stuff. I put all the stuff in a new version called SWT_SECT so it could be separated from the original SWT, but I have very strange problem. When I add new case for OS.WM_DROPFILES in the Control's windowProc I get unhandled exception in decorations.d@941 . Maybe I am doing something wrong? Could you (Shawn) explain briefly what is involved in adding new event handlers to DWT? I plan to add WM_DROPFILES and DDE handlers. Something like addDDEListener(service,topic)... I believe it would be useful to have these in the windows version, and even if they are not included in the official distribution, they are necessary for my project - akide.

Thank you,
bobef

"bobef" <bobef@lessequal.com> says:dt9qmi$28ho$1@digitaldaemon.com...
>I trying to add WM_DROPFILES event for the windows version of DWT. I spent few hours studying the DWT internals... I defined new event in DWT, added new event class and all the stuff. I put all the stuff in a new version called SWT_SECT so it could be separated from the original SWT, but I have very strange problem. When I add new case for OS.WM_DROPFILES in the Control's windowProc I get unhandled exception in decorations.d@941 . Maybe I am doing something wrong? Could you (Shawn) explain briefly what is involved in adding new event handlers to DWT? I plan to add WM_DROPFILES and DDE handlers. Something like addDDEListener(service,topic)... I believe it would be useful to have these in the windows version, and even if they are not included in the official distribution, they are necessary for my project - akide.
>
> Thank you,
> bobef

I think the additional Windows Message can be handled correctly in DWT. decorations.d line 941 only complains that there is a null image parameter passed into the setImages() method.

http://trac.dsource.org/projects/dwt/browser/trunk/current/win32/import/dwt/widgets/decorations.d?rev=96#L941

Shawn Liu wrote:
> "bobef" <bobef@lessequal.com> says:dt9qmi$28ho$1@digitaldaemon.com...
>> I trying to add WM_DROPFILES event for the windows version of DWT. I spent few hours studying the DWT internals... I defined new event in DWT, added new event class and all the stuff. I put all the stuff in a new version called SWT_SECT so it could be separated from the original SWT, but I have very strange problem. When I add new case for OS.WM_DROPFILES in the Control's windowProc I get unhandled exception in decorations.d@941 . Maybe I am doing something wrong? Could you (Shawn) explain briefly what is involved in adding new event handlers to DWT? I plan to add WM_DROPFILES and DDE handlers. Something like addDDEListener(service,topic)... I believe it would be useful to have these in the windows version, and even if they are not included in the official distribution, they are necessary for my project - akide.
>>
>> Thank you,
>> bobef
> 
> I think the additional Windows Message can be handled correctly in DWT.
> decorations.d line 941 only complains that there is a null image parameter
> passed into the setImages() method.
> 
> http://trac.dsource.org/projects/dwt/browser/trunk/current/win32/import/dwt/widgets/decorations.d?rev=96#L941
> 
> 

This is why I said it is strange...

I found easier way to get notified on WM_DROPFILES - hooks (hook for WH_GETMESSAGE after DragAcceptFiles(shell.handle,1); )

I still can't have a full DDE conversation this way but give it some time...

bobef wrote:
> I trying to add WM_DROPFILES event for the windows version of DWT. I spent few hours studying the DWT internals... I defined new event in DWT, added new event class and all the stuff. I put all the stuff in a new version called SWT_SECT so it could be separated from the original SWT, but I have very strange problem. When I add new case for OS.WM_DROPFILES in the Control's windowProc I get unhandled exception in decorations.d@941 . Maybe I am doing something wrong? Could you (Shawn) explain briefly what is involved in adding new event handlers to DWT? I plan to add WM_DROPFILES and DDE handlers. Something like addDDEListener(service,topic)... I believe it would be useful to have these in the windows version, and even if they are not included in the official distribution, they are necessary for my project - akide.
> 
> Thank you,
> bobef

OK. Did the DDE too. The tricky part is that WM_DDE_INITATE goes to WH_CALLWNDPROC (maybe WH_CALLWNDPROCRET too, haven't tried) and WM_DDE_EXECUTE/TERMINATE goes to WH_GETMESSAGE ...





bobef wrote:
> I found easier way to get notified on WM_DROPFILES - hooks (hook for WH_GETMESSAGE after DragAcceptFiles(shell.handle,1); )
> 
> I still can't have a full DDE conversation this way but give it some time...
> 
> bobef wrote:
>> I trying to add WM_DROPFILES event for the windows version of DWT. I spent few hours studying the DWT internals... I defined new event in DWT, added new event class and all the stuff. I put all the stuff in a new version called SWT_SECT so it could be separated from the original SWT, but I have very strange problem. When I add new case for OS.WM_DROPFILES in the Control's windowProc I get unhandled exception in decorations.d@941 . Maybe I am doing something wrong? Could you (Shawn) explain briefly what is involved in adding new event handlers to DWT? I plan to add WM_DROPFILES and DDE handlers. Something like addDDEListener(service,topic)... I believe it would be useful to have these in the windows version, and even if they are not included in the official distribution, they are necessary for my project - akide.
>>
>> Thank you,
>> bobef