Re: [AD] problem with windows dialogs/ Win XP

[AJ <aj@xxxxxxxxxx>]

tried my code snippet again, in mingw 3.4.2
winXP, sp1,  this time in release build.

window opens, on top of the allegro window.
its opens to the "My Documents" folder
i can see a .bmp file there.

it all looks good.






Daniel Sauder wrote:
> Don't work correct for me. When I change the file type the dialog is 
> putting an empty file list in the dialog. It is then just showing the 
> files correctly when I change and rechange the directory... I'm using 
> mingw 3.4.2, WinXP SP2.
>
> AJ wrote:
>
> > this code (that i copy-pasted from your message below)  worked in 
> > WinXP, Sp1, msvc7.1 build.  debug_s
> >
> >
> > so whats is the problem ?
> >
> > {
> >     OPENFILENAME ofn;
> >     //ofn.hwndOwner=win_get_window();   BAD
> >     memset(&ofn,0,sizeof(ofn));
> >     ofn.lStructSize=sizeof(OPENFILENAME);
> >     ofn.hwndOwner=win_get_window();   //GOOD
> >     char szFile[260]="";
> >     ofn.nMaxFile=sizeof(szFile);
> >     ofn.lpstrFile=szFile;
> >     ofn.lpstrFilter="Bitmaps\0*.bmp\0All Files\0*.*\0\0";
> >     GetOpenFileName(&ofn);
> > }
> >
> >
> >
> >
> >
> >
> > Daniel Sauder wrote:
> >
> > > The main problem is that the code below is working with Win98 and 
> > > wine but not XP. But I didn't know that it is working like you 
> > > described it. I had a short text for the faq but now I'll rewrite it. 
> > > Maybe you can give a short example?
> > > Dan
> > >
> > > AJ wrote:
> > >
> > > > i have not followed thread about this topic, so excuse me if im 
> > > > off-topic,  but...
> > > >
> > > > i have added  my own windows file dialog code to my app, by placing 
> > > > it into its own thread, then feeding the return values back into the 
> > > > main app via a set of critical sections.  i dont have any trouble 
> > > > with it.
> > > > if this is on-topic let me know.
> > > >
> > > > aj.
> > > >
> > > >
> > > >
> > > >
> > > > Daniel Sauder wrote:
> > > >
> > > > > I made some more research and have a question:
> > > > > - GetOpenFilename works correct when I changed the call of 
> > > > > _CoInitializeEx(NULL, _COINIT_MULTITHREADED); to
> > > > > _CoInitializeEx(NULL, COINIT_APARTMENTTHREADED); or to 
> > > > > CoInitialize(NULL); in wthread.c (or when it isn't called,
> > > > > see below)
> > > > > Anybody knows what's exactly the difference between 
> > > > > _COINIT_MULTITHREADED and COINIT_APARTMENTTHREADED?
> > > > >
> > > > > - GetOpenFilename dialog and MessageBox apear behind the main 
> > > > > window when called, with the the changes above too.
> > > > > I made a mistake with this (I should be more careful). It's working 
> > > > > alright:
> > > > > #include <allegro.h>
> > > > > #include <winalleg.h>
> > > > >
> > > > > int main(int argc, char **argv) {
> > > > >    allegro_init();
> > > > >    install_keyboard();
> > > > >    set_color_depth(16);
> > > > >    set_gfx_mode(GFX_AUTODETECT_WINDOWED,640,480,0,0);
> > > > >
> > > > >    //set_gfx_mode(GFX_GDI,640,480,0,0);
> > > > >    set_gfx_mode(GFX_AUTODETECT_WINDOWED,640,480,0,0);
> > > > >    OPENFILENAME ofn;
> > > > >      //ofn.hwndOwner=win_get_window();   BAD
> > > > >      memset(&ofn,0,sizeof(ofn));
> > > > >    ofn.lStructSize=sizeof(OPENFILENAME);
> > > > >    ofn.hwndOwner=win_get_window();   //GOOD
> > > > >    char szFile[260]="";
> > > > >
> > > > >    ofn.nMaxFile=sizeof(szFile);
> > > > >    ofn.lpstrFile=szFile;        
> > > > > ofn.lpstrFilter="Bitmaps\0*.bmp\0All Files\0*.*\0\0";
> > > > >    GetOpenFileName(&ofn);
> > > > >
> > > > > }
> > > > > END_OF_MAIN()
> > > > >
> > > > > -Since I don't find a solution except changing the threading model 
> > > > > when calling _CoInitializeEx, I'll write a small text for the FAQ.