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How to set thumbnail image to a file icon of Explorer Masahiro Kurosawa27-Mar-01 20:29 Masahiro Kurosawa 27-Mar-01 20:29  Some image viewer application programs, for example, Adobe Photoshop(http://www.adobe.com/) or SolidWorks(http://www.solidworks.com) set thumbnail image of a file to its file icon in Explorer so that the users can know the content of the image file without opening it. (I do not imply "Thumbnail View" when Explorer is at "Web Page" mode, but customized icon only for a file in place of the application's general file icon.) I want to do same thing above in my application program. If anybody know how to set thumbnail image (custamized icon) to a file icon in place of the application's general file icon in Explorer, please tell me. ------------------------------- Masahiro Kurosawa kurosaw@itg.hitachi.co.jp ------------------------------- Re: How to set thumbnail image to a file icon of Explorer PJ Arends28-Mar-01 6:23 PJ Arends 28-Mar-01 6:23  Have a look at the IconPro sample included on the MSDN CD Re: How to set thumbnail image to a file icon of Explorer Michael Dunn28-Mar-01 16:57 Michael Dunn 28-Mar-01 16:57  Check out my shell extension article on this subject. --Mike-- http://home.inreach.com/mdunn/ The preferred snack of 4 out of 5 Lounge readers. Re: How to set thumbnail image to a file icon of Explorer Masahiro Kurosawa28-Mar-01 17:32 Masahiro Kurosawa 28-Mar-01 17:32  Thank you for your reply. I think that's what I want to know. I'm going to see the recommended article in detail. ------------------------------- Masahiro Kurosawa kurosaw@itg.hitachi.co.jp ------------------------------- How to extract icon from file? Masahiro Kurosawa29-Mar-01 1:17 Masahiro Kurosawa 29-Mar-01 1:17  At first, I greatly appreciate your advice. I can understand how to customize the icons and icon handler architecture. Well, I have another question: - - - How to retrieve a handle to an icon from the specified file as we can do same thing from DLL or EXE using 'ExtractIcon' function ? - - - I'm sorry to trouble you so often. If you can find time for me, please tell me the solution about this. ------------------------------- Masahiro Kurosawa kurosaw@itg.hitachi.co.jp ------------------------------- Re: How to extract icon from file? Michael Dunn29-Mar-01 6:31 Michael Dunn 29-Mar-01 6:31  How to retrieve a handle to an icon from the specified file as we can do same thing from DLL or EXE using 'ExtractIcon' function? Sorry, I don't quite understand what you're asking. Is ExtractIcon not working? --Mike-- http://home.inreach.com/mdunn/ The preferred snack of 4 out of 5 Lounge readers. Re: How to extract icon from file? Masahiro Kurosawa29-Mar-01 14:25 Masahiro Kurosawa 29-Mar-01 14:25  Oh, I apologize to you if my description was not enough. At first, Visual C++ 6.0 Help reads that ExtractIcon function retrieves a handle to an icon from the specified executable file, dynamic-link library (DLL), or icon file. Then, I actually try to use ExtractIcon function for text file (.txt), but ExtractIcon would not work as Help reads. If there is a way to retrieve a handle to an icon from '.EXE', '.DLL', or '.ICO', I think there is also a way to do same from '.TXT'. Should I use IExtractIcon interface like Explorer? If so, I want to know how to use IExtractIcon interface ( I understand how to implement IExtractIcon interface for Explorer to use thanks to you ). Or, If there is more easier way like using ExtractIcon for '.EXE', '.DLL', or '.ICO, please instruct me. ------------------------------- Masahiro Kurosawa kurosaw@itg.hitachi.co.jp ------------------------------- Re: How to extract icon from file? Michael Dunn29-Mar-01 16:11 Michael Dunn 29-Mar-01 16:11  Ah ok, you want to get the icon that's used for TXT files, right? The way to do that is with SHGetFileInfo(), such as: SHFILEINFO info; SHGetFileInfo ( _T("foo.txt"), FILE_ATTRIBUTE_NORMAL, &info, sizeof(SHFILEINFO), SHGFI_ICON | SHGFI_USEFILEATTRIBUTES ); After that, info.hIcon is the icon. Add SHGFI_SMALLICON to the flags if you want the small (16x16) icon. --Mike-- http://home.inreach.com/mdunn/ The preferred snack of 4 out of 5 Lounge readers. Re: How to extract icon from file? Masahiro Kurosawa29-Mar-01 18:52 Masahiro Kurosawa 29-Mar-01 18:52  Yes, that's what I want to do. Thank you very much. Also, I'm coming to understand where I should refer in VC++ Help thanks to your advices, so I wish to express my appreciation to you again. Thanks a lot. Sincerely yours ------------------------------- Masahiro Kurosawa kurosaw@itg.hitachi.co.jp ------------------------------- How resize dialog bar when it is in docked mode ? 25-Mar-01 21:13 25-Mar-01 21:13  Thanks Some problem when hosting WebBrowser control in an application 25-Mar-01 21:12 25-Mar-01 21:12  Hi, I faced some problem when develop a small Internet reliant application, could you help me to solve them ? How to use get/put_onsubmit method of interface IHTMLFormElement when hosting a WebBrowser control in an application ? How to hosting more than one WebBrowser control in an application, which use same session on the server ? Once the session is authenticated by first created control, other controls can enlist in the same session. Thank you. Bitmaps and Static Controls 24-Mar-01 4:33 24-Mar-01 4:33  Does anybody know how to display a bitmap from memory DC into the SS_BITMAP-style static control ? Where shuld be this memory DC derived from ? Thanks for suggestion. Petr Pivonka Re: Bitmaps and Static Controls Christian Graus24-Mar-01 10:22 Christian Graus 24-Mar-01 10:22  Your memory DC would be a CDC and as a bitmap static gets set with a bitmap, I'd suggest using GetCurrentBitmap to get the bitmap out of the DC and pass into the static. Christian The content of this post is not necessarily the opinion of my yadda yadda yadda. To understand recursion, we must first understand recursion. CRC-32 LIBRARY Marek Švantner23-Mar-01 7:55 Marek Švantner 23-Mar-01 7:55  I'm looking for a C(++) library which would enable me to work with 32-bit CRC. I would also appreciate some reference to any theory behind that. Will somebody help me? Thanks. Marek Svantner Re: CRC-32 LIBRARY Rui Lopes23-Mar-01 8:24 Rui Lopes 23-Mar-01 8:24  Take a look at the zlib, this compression library comes with a crc32 algorithm, the link for zlib is: http://www.info-zip.org/pub/infozip/zlib/ Rui Lopes Re: CRC-32 LIBRARY Leo Moll23-Mar-01 8:24 Leo Moll 23-Mar-01 8:24  Take a look at http://sourceforge.net/projects/yeasoft/ - In that class library you will find a class for calculating the CRC-32. The related files are yCrc32.h, yCrc32.inl and yCrc32.cpp and you can find them browsing the CVS repository. Reading the file which is given for printing 22-Mar-01 0:24 22-Mar-01 0:24  I would like to know an API/APIS which can help me to catch the physical path of a file which is given for print along with reading the parameters from the print dailog box. I'll be waiting for reply from anyone who can help me to solve this problem. ON_COMMAND_UI for Dialog Tutorial/Example Matt Philmon21-Mar-01 9:51 Matt Philmon 21-Mar-01 9:51  I have an MFC Dialog based application. Using other code samples I added a toolbar to my dialog and added support for the tooltips, etc. It works great. I have a couple instances where I need to disable some of the buttons on the toolbar. I figured out a way to do this with using CToolBar::GetToolBarCtrl function and using the SetState function with the indeterminate flag. However, all my reading suggests that the proper way to do this is to use ON_COMMAND_UI for the button I want to disable. Well, ON_COMMAND_UI needs a CFrame to work correctly. For a dialog, the ON_COMMAND_UI handlers you set up for each button on the toolbar is never even called so I can't call the pCmdUI->Enable(false) to disable the item. If you are writing a dialog based app (as I am) your best bet currently appears to be to use WM_KICKIDLE instead. However, that doesn't give me the ON_COMMAND_UI handler I need (the CCmdUI pointer). I could use OnKickIdle and call the OnCommandIUI handlers myself creating and passing a pointer to a CCmdUI object I populate myself but I can't seem to get this to work. Could someone tell me the proper way and demonstrate fully? I've tried so many different things without success and while my hack(?) appears to work, I'd like to do it the proper way. Thanks. Matt Philmon Re: ON_COMMAND_UI for Dialog Tutorial/Example Michael Dunn22-Mar-01 6:21 Michael Dunn 22-Mar-01 6:21  Your OnKickIdle() handler should call UpdateDialogControls(this, FALSE); which will call the UPDATE_COMMAND_UI handlers for you. --Mike-- http://home.inreach.com/mdunn/ The preferred snack of 4 out of 5 Lounge readers. Re: ON_COMMAND_UI for Dialog Tutorial/Example Matt Philmon22-Mar-01 14:02 Matt Philmon 22-Mar-01 14:02  True enough... but not for Toolbar buttons. UpdateDialogControls will get UPDATE_COMMAND_UI working for standard controls(buttons, text boxes, whatever) but not for a toolbar button. I'm not EXACTLY sure for the reason. Maybe it's because toolbars aren't exactly intended to Dialog base apps. Shared files info 20-Mar-01 14:54 20-Mar-01 14:54  Could someone tell me how can i know if a file or folder is shared in VC++? Is there any attribute to indicate that the file or folder is shared? Datasource - how to make? 11-Mar-01 4:37 11-Mar-01 4:37  Can anyone point me to manual, where i can read about developing datasource? I mean i need to implement my own datasource... where to read about? Re: Datasource - how to make? Attila Hajdrik11-Mar-01 9:01 Attila Hajdrik 11-Mar-01 9:01  Hi Dmitriy! I guess, that the way you have to go is OLEDB Provider....so search for this on MSDN....and CodeProject too of course Regards, Attila Hajdrik Changing windows hostname and updating DNS immediately. Paul Freebourne7-Mar-01 4:59 Paul Freebourne 7-Mar-01 4:59  I am trying to change the hostname in win9x and NT and then alert the DHCP server that I have a new name so he can update DNS. Ideally I want this to happen without rebooting, but I realize this may not be possible. Currently, when I change the client hostname (Win9x - HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\VxD\MSTCP\HostName & NT/2000 - HKLM\SYSTEM\CURRENTCONTROLSET\SERVICES\TCPIP\PARAMETERS\Hostname) and reboot the DHCP server still uses the old name in DNS. Even if I release and renew the client's ip lease the DHCP server still uses the old name. However, when the client's name is changed via the network applet and rebooted the DHCP server does change the name in DNS. If anyone has any insight I would be grateful. PS. I am using a CISCO dhcp server if it matters. Paul Is there an alternative to CMC mail Steve Thresher6-Mar-01 4:45 Steve Thresher 6-Mar-01 4:45  If you install the security update to Outlook 98/2000 the CMC mail functions are no longer available. Is there another simple way of sending a mail message with an attached file without knowing which program is being used for mail. Thanks in advance Steve

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