wine-devel November 2002

wine-devel@winehq.org

152 participants
501 discussions

CreateWindow fails
by steve.lustbader＠philips.com 15 Nov '02

15 Nov '02

My app calls CreateWindow like this: WNDCLASSEX wcex; wcex.cbSize = sizeof(WNDCLASSEX); wcex.style = 0; wcex.lpfnWndProc = (WNDPROC)MyWndProc; wcex.cbClsExtra = 0; wcex.cbWndExtra = 0; wcex.hInstance = hInstance; // from argument to DllMain wcex.hIcon = NULL; wcex.hCursor = NULL; wcex.hbrBackground = NULL; wcex.lpszMenuName = NULL; wcex.lpszClassName = TEXT("foo"); wcex.hIconSm = NULL; RegisterClassEx(&wcex); g_hTarget = CreateWindow(TEXT("foo"), TEXT(""), WS_POPUP, 0, 0, 0, 0, NULL, NULL, NULL, NULL); ASSERT( NULL != g_hTarget ); It fails the final assertion in Wine but not in Windows. Any idea why CreateWindow would be returning NULL here? What debug output could I provide that could be helpful here? -Steve

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Re: FW: wine-devel digest, Vol 1 #1391 - 17 msgs
by Andrew Lynch 15 Nov '02

15 Nov '02

> Date: Thu, 14 Nov 2002 18:23:49 -0800 (PST) > From: Steven Edwards <steven_ed4153(a)yahoo.com> > Subject: Re: Wine Fun Projects v0.2 > To: dpaun(a)rogers.com, Wine Devel > <wine-devel(a)winehq.com> > > You might want to add visual-mingw to the winelib > apps section. One > thing I recommened to Jermey > White a while back was that WINE might gain more of > a market share if > there was a easy way for > people that are writing Windows apps on Windows if > they had a IDE for > GCC that was cross-platform. > > I was thinking at the time of something like a > CrossOver Developer > Studio or something. > > Anyway the idea is to run Visual-Mingw under WINElib > and be able to > just recompile your Win32 app > that was built with Visual-Mingw and the w32api > package plus reduce > some of the redunancy Wine, > Mingw and ReactOS have by finding areas where we are > not in sync. > > It would be a bitch and a long term project but I > think its something > to think about. > > Thanks > Steven > Visual-Mingw sounds almost identical to DevEx found at http://sourceforge.net/projects/wingtk and http://www.bloodshed.net I am using their wGLADE tool for cygwin/GTK+ development presently and it works great under Win98. Andrew Lynch PS, all of these tools are GPL __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site http://webhosting.yahoo.com

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Re: WWN 144
by Brian Vincent (C) 15 Nov '02

15 Nov '02

> Hmm, what is wrong with this picture? What's wrong is you posted from two different email accounts and the XML parser only matched the last one (even though you'd posted something like 25 from the other acct.) And frankly I just don't care enough to bother fixing the stat script to try to match every person who has multiple accts. A bigger issue is the parser (both on WineHQ and Kernel Traffic) doesn't seem to deal with <dl>, <dd>, <dt>, and <tt> tags so a few of the threads ended up looking like crap. And that's something I'm going to try to get fixed. -brian

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WWN 144
by Dustin Navea 15 Nov '02

15 Nov '02

Hmm, what is wrong with this picture? This week, 372 posts consumed 1216 K. There were 68 different contributors. 44 (64%) posted more than once. 43 (63%) posted last week too. The top 5 posters of the week were: " /> " /> 43 posts in 117K by Dimitrie O. Paun 27 posts in 72K by Sylvain Petreolle 26 posts in 85K by Tony Lambregts 2 posts in 4K by Dustin Navea 22 posts in 51K by Alexandre Julliard Pulled up in IE 6 and it showed that, even after refreshing. -Dustin

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RE: C++ tests (1/2)
by Patrik Stridvall 15 Nov '02

15 Nov '02

> Patrik Stridvall <ps(a)leissner.se> writes: > > > Many normal "C" features are not commonly used either, shouldn't we > > have tests for them? > > If all the C framework could do was test the alignment of a few rarely > used structures, then it would clearly not be worth the > trouble either. Perhaps. But that is only ONE of the things we could do. Unless you have noticed the meantion examples (repeated below) contains INLINE FUNCTIONS that needs to be tested not just alignment and that sort of things. < A FEW examples of C++ only features: < 1. The D3D math classes (vector, matrices, quaternions, colors etc) in < d3dvec.inl d3dx8math.inl d3dxmath.inl < 2. The GDI+ API classes in gdiplus*.h < 3. The DAO API classes in dbdao.h < 4. STL compatible classes for accessing SAFEARRAY's in t_safevector.h

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RE: C++ tests (1/2)
by Patrik Stridvall 15 Nov '02

15 Nov '02

> Patrik Stridvall <ps(a)leissner.se> writes: > > > So my questions to you: > > 1. Should we support the C++ only features meantion above? > > 2. If yes, should we just include it in the tree without tests > > and just hope it works or should we have C++ tests for them? > > When someone has an app that requires these features they can > implement them, and test them by building their app. Or we can > implement them and write a small test program to test them once. The same can be said about every "C" feature as well. > No > need to build a new test environment for such uncommon features. Many normal "C" features are not commonly used either, shouldn't we have tests for them? Look, the point of tests is not testing once. It is testing for regressions when the code changes. > > I see no relevent comparsion between them: > > 1. C++ is actually used by the Microsoft SDK. Perl is not. > > 2. The Perl framework was big and required generated modules. > > The C++ framework is very small and uses the Wine header files > > as they are (or should be in order to be Microsoft compatiable) > > The issue is not really the size of the framework, it's the extra > dependencies. It would require everybody who wants to run tests to > have a working, compatible C++ installation; given the various levels > of brokenness of existing g++ versions that's far from trivial. Very true. Thanks for reminding me that it should be an optional feature. It you want to use it: ./configure --with-cxx No problem.

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COM Enhancement patch
by Christian Costa 15 Nov '02

15 Nov '02

Hi all, I've sent a patch for ddraw COM management, I did not have any comments and the patch has been rejected. Could someone tell me if something is wrong or lacking? Christian. PS: I've joined a small doc that explains how to use objects with multiple interfaces. This docs is based on what has been done before with the ddraw code plus the enhancement I did. --------------------------------------------------------------------------------- - COM OBJECTS MANAGEMENT - --------------------------------------------------------------------------------- 1) Definitions: --------------- a) Object classes An object class is a structure wich defines the data of an object and all the interfaces that act on the object data Example : struct ObjectClass { INTERFACE 1; INTERFACE 2; ............ INTERFACE N; DATA; } ; typedef struct ObjectClass ObjectClass; b) Objects An object is a instance of an object class. Example : An object is created as follows : ObjectClass* object = malloc(sizeof(ObjectClass),...) c) Interfaces An interface is a way for an application to interact with an object. It contains a pointer to a virtual table plus some other data than can help objects management. An interface is a structure, which is used internally, that can be defined with the INTERFACE macro : #define INTERFACE(iface) \ struct { \ iface interface; \ /* VTABLE */ LPVOID object; \ /* pointer to the object the interface belongs to */ } To add a field to the interface, just add it in this macro. For example, we could embed the version number inside an interface or a magic number to check if the interface's pointer points to a real interface. And, off course, modify some macros or create new ones to make use of them. 2) Implementing COM objects: --------------------------- a) Declaring a COM object with multiple interfaces To declare interfaces in a COM object the ICOM_VFIELD_MULTI must be used for each interface as shown below: struct IDirect3DImpl { /* IUnknown fields */ ICOM_VFIELD_MULTI(IDirect3D); ICOM_VFIELD_MULTI(IDirect3D2); ICOM_VFIELD_MULTI(IDirect3D3); ICOM_VFIELD_MULTI(IDirect3D7); DWORD ref; /* IDirect3D fields */ IDirectDrawImpl* ddraw; LPVOID private; }; b) Creating an object Just declare an pointer to an object and allocate the memory for it. Example: IDirect3DImpl* object = malloc(sizeof(IDirect3DImpl),...) c) Initializing interfaces It is done with the ICOM_INIT_INTERFACE(object_pointer, interface_name, virtual_table) ICOM_INIT_INTERFACE(object,IDirect3D, VTABLE_IDirect3D); ICOM_INIT_INTERFACE(object,IDirect3D2,VTABLE_IDirect3D2); ICOM_INIT_INTERFACE(object,IDirect3D3,VTABLE_IDirect3D3); ICOM_INIT_INTERFACE(object,IDirect3D7,VTABLE_IDirect3D4); d) Retreive an object from within an interface's function If we consider the function : IDirect3D_AddRef(IDirect3D iface,.......) To retrieve a pointer to an object within the function, both followings macro are used : 1) ICOM_OBJECT(object_class,iface) This macro return an pointer to the object, the value is of object_class* type Example: IDirect3DImpl* d3d = ICOM_OBJECT(IDirect3DImpl,iface); 2) ICOM_THIS_OBJECT(object class,iface) It simply declares a This pointer and initialize it with the object address. IDirect3DImpl* This = ICOM_OBJECT(IDirect3DImpl,iface); e) Sharing functions between multiple interfaces In the case where a function does no have to do specific actions depending on the interface, you can share directly a function. Example : If we consider the function : IDirect3D_AddRef(IDirect3D iface,.......) The different virtual tables would be : VTABLE_IDirect3D = {......,IDirect3D_AddRef,....); VTABLE_IDirect3D2 = {......,XCAST()IDirect3D_AddRef,....); VTABLE_IDirect3D3 = {......,XCAST()IDirect3D_AddRef,....); VTABLE_IDirect3D7 = {......,XCAST()IDirect3D_AddRef,....); Note that this is possible because the ICOM_OBJECT can retreive the object's pointer without knowing the interface involved. f) Thunking interface Interface thunking enable changing from one interface to another. The following macro COM_INTERFACE_CAST(impltype, ifnamefrom, ifnameto, ifaceptr) performs this task. impltype = object class ifnamefrom = interface type we have ifnamefrom = interface type we want ifaceptr = pointer to the interface to cast return = pointer to the casted interface Interface thunking is a another way to shared a single function across different interfaces but as shown below this is required only when structures must be translated, interfaces returned casted or to handle prototype change : Example: You want to share the IDirect3D_CreateDevice across all IDirect3DX interfaces (with X above 1 because a device in Direct3D is created in a different way). IDirect3D2_CreateDevice(IDirect3D2* iface,.....) is the only one implementation of the function. The others are thunks to the IDirect3D2_CreateDevice. IDirect3D3_CreateDevice(IDirect3D3* iface, .....,LPDIRECT3DDEVICE3 *lpdevice, LPUNKNOWN lpUnk) { IDirect3DDevice3 *dev; IDirect3D_CreateDevice(ICOM_INTERFACE_CAST(IDirect3DImpl,IDirect3D2,IDirect3D3,iface),.....,&dev); *lpdevice = ICOM_INTERFACE_CAST((IDirect3DImpl,IDirect3D3,IDirect3D2,device) } IDirect3D7_CreateDevice(IDirect3D7* iface, .....,LPDIRECT3DDEVICE7 *lpdevice) { IDirect3DDevice2 *dev; IDirect3D_CreateDevice(ICOM_INTERFACE_CAST(IDirect3DImpl,IDirect3D2,IDirect3D7,iface),.....,&dev); *lpdevice = ICOM_INTERFACE_CAST((IDirect3DImpl,IDirect3D7,IDirect3D2,dev) } Here, we have to deal with a returned interface and a prototype change. The VTABLE should be: VTABLE_IDirect3D2 = {......,IDirect3D2_CreateDevice,....); VTABLE_IDirect3D3 = {......,IDirect3D3_CreateDevice,....); VTABLE_IDirect3D7 = {......,IDirect3D7_CreateDevice,....); Note that there are few functions that need this, for the others, thunks are not necessary and the way described in e) must be preferred. g) Getting an specific interface of an object With the ICOM_INTERFACE(implobj, ifacename) macro, any interfaces can be retreive from an object. implobj = pointer to the object ifacename = interface name we want return = pointer to an interface Example: IDirect3DImpl* object; ............ IDirect3D3* iface_d3d3 = ICOM_INTERFACE(object,IDirect3D3) h) Calling an COM object functions from another If a function is shared across multiple interfaces, you should write: IDirect3D3_CreateDevice(IDirect3D* iface,.....) { ICOM_THIS_OBJECT(iface); ................. IDirect3D_AddRef(ICOM_INTERFACE(This,IDirect3D),.....); ................. } If you know the nature of iface (i.e. thunking is used or the function is used in only one interface), you can write : IDirect3D3_CreateDevice(IDirect3D* iface,.....) { ICOM_THIS_OBJECT(iface); ................. IDirect3D3_AddRef(iface,.....); ................. }

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Wine without any X11 environment
by Michael Riedel 15 Nov '02

15 Nov '02

Hello, is it possible to use wine in a telnet session to start a (command line) windows application? I get the error that x11drv can't connect to a display (which is correct). I'm also not very sure that the windows program itself does not perform some graphic related queries (there were some fixme messages when I tried to use 'ttydrv'). Any ideas? Is there any workaround to use a dummy display or whatever? Thanks, Michael --

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Re: StgIsStorageFile
by Dmitry Timoshkov 15 Nov '02

15 Nov '02

"Ryan Cumming" <ryan(a)completely.kicks-ass.org> wrote: > On a side note, I made a pretty nice testcase for this, but there seems to be > no dlls/ole32/tests directory. Just send a file with tests to wine-patches and somebody else will make a makefile magic for you. -- Dmitry.

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Re: wine/ programs/rundll32/rundll32.c dlls/kernel ...
by Martin Wilck 15 Nov '02

15 Nov '02

Am Fre, 2002-11-15 um 05.17 schrieb Alexandre Julliard: > ChangeSet ID: 6302 > Modified files: > programs/rundll32: rundll32.c > dlls/kernel : computername.c > > Log message: > Warning fixes. Your compiler seems to issue more warnings than mine :-/ It is good to see these patches are really reviewed. The lenW thingy is really embarrassing for me. Two questions/remarks: @@ -426,12 +426,13 @@ memcpy( name, buf, len ); name[len] = 0; *size = len; + ret = TRUE; This shouldn't be necessary because the whole block is executed only if ret == TRUE. } } __EXCEPT(page_fault) { SetLastError( ERROR_INVALID_PARAMETER ); - ret = FALSE; + return FALSE; } __ENDTRY What is the point of this one? (applies also to the last hunk) Martin -- Martin Wilck Phone: +49 5251 8 15113 Fujitsu Siemens Computers Fax: +49 5251 8 20409 Heinz-Nixdorf-Ring 1 mailto:Martin.Wilck@Fujitsu-Siemens.com D-33106 Paderborn http://www.fujitsu-siemens.com/primergy

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wine-devel November 2002