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Re: Sending string between two apps 31-Oct-01 6:26 31-Oct-01 6:26  I will try it, thanks Re: Sending string between two apps 31-Oct-01 6:50 31-Oct-01 6:50  Thanks a lot, it works fine However, I have one more question: I use HWND_BRODCAST to send the message system-wide. But since PostMessage cannot be used with WM_COPYDATA I need to use SendMessage. But MSDN says: "...function calls the window procedure for the specified window and does not return until the window procedure has processed the message" so how will be program be slowed down? how long does it take until the program can process with the following code? regards Re: Sending string between two apps #realJSOP31-Oct-01 7:10 #realJSOP 31-Oct-01 7:10  1) If you have the source code to both apps, you don't need to use HWND_BROADCAST. You can use the HWND of the target application. I assume you have the source to both programs, otherwise trading WM_COPYDATA messages back and forth would not be doable. 2) The Windows API does not restrict you from using PostMessage to send the WM_COPYDATA message. 3) There are two versions of SendMessage. a) SendMessage - Uses the default timeout of five secons before timing out. b) SendMessageEx - allows you to specify the timeout duration (in milliseconds). "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001 Re: Sending string between two apps 31-Oct-01 7:21 31-Oct-01 7:21  point 1) I only have the sourcecode from the app which needs to get the string. A friend of mine wrote a program in delphi but I don't have access to the source. So I told him just to input the WM_COPYDATA function into his app in order to send me necessary data from his app into my app point 2) MSDN says: An application must use theSendMessage function to send this message, not thePostMessage function. I tried with PostMessage and it did not work point 3b) what happens, if the function times out? Will no application get the WM_COPYDATA message? Re: Sending string between two apps #realJSOP31-Oct-01 8:11 #realJSOP 31-Oct-01 8:11  1) He should be able to get your apps hwnd if he knows the window title (or scans the task list for the module name. 2) I guess I can understand that. Postmessage returns immediately, so there's a real good chance that the receiving app won't have time to process the string. 3b) In the event of a timeout, Sendmessage (and SendMessageEx) both return FALSE. "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001 Re: Sending string between two apps Chris Losinger31-Oct-01 6:14 Chris Losinger 31-Oct-01 6:14  you could use the clipboard, with a custom data type. -c http://www.smalleranimals.com Re: Sending string between two apps Nish Nishant31-Oct-01 6:18 Nish Nishant 31-Oct-01 6:18  1) use the clipboard 2) create a temp file 3) use the registry [dont forget to delete the temp keys you make] Re: Sending string between two apps #realJSOP31-Oct-01 7:11 #realJSOP 31-Oct-01 7:11  You forgot: 4) Use WM_COPYDATA. "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001 Re: Sending string between two apps Chris Losinger31-Oct-01 7:38 Chris Losinger 31-Oct-01 7:38  5) use DDE -c http://www.smalleranimals.com Re: Sending string between two apps #realJSOP31-Oct-01 8:26 #realJSOP 31-Oct-01 8:26  6) Named pipes 7) Memory-mapped files "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001 Re: Sending string between two apps Carlos Antollini31-Oct-01 9:08 Carlos Antollini 31-Oct-01 9:08  8) RPC Carlos Antollini. Re: Sending string between two apps 31-Oct-01 9:12 31-Oct-01 9:12  9) UPS 10) Federal Express 11) US Postal Service Re: Sending string between two apps Carlos Antollini31-Oct-01 9:24 Carlos Antollini 31-Oct-01 9:24  Its true!!! The use will be in this mode... ::SendMessage(yourAddress, theBox, company, type); Carlos Antollini. Re: Sending string between two apps 1-Nov-01 2:23 1-Nov-01 2:23  You guys are crazy Thanks to everybody for his help Re: Sending string between two apps Nish Nishant31-Oct-01 17:52 Nish Nishant 31-Oct-01 17:52  Yeah... Nish how to detect dialog's actual control? 31-Oct-01 5:30 31-Oct-01 5:30  how i have to detect dialog control i want to disable is not focused one? (i have to move to nextdlgctrl than) i see no getactdlgctrl or similar resp. main problem is GetDlgItem(ID_MYCONTROL)->Enablewindow(FALSE); not moves to next control automaticaly (has to?) i have no special nextctrl handler thanks for reply t! Re: how to detect dialog's actual control? 1-Nov-01 20:23 1-Nov-01 20:23  and it seems disabling actual button it brings problems with dialog hotkeys disabling - during already opened dialog t! Retrieving registry values Steven Gregg31-Oct-01 5:18 Steven Gregg 31-Oct-01 5:18  Have the following code as part of my DLL running on NT Workstation. For some reason it opens the registry key OK but can't Query the value. The value is definately in the registry. Interestingly, when I cut and paste the code into a standalone .exe it works fine. Anyone any ideas...is it a problem with UNICODE or similar? //GET REGISTRY INFORMATION FOR DATABASE NAME // HKEY hKey; if (ERROR_SUCCESS == RegOpenKeyEx( HKEY_LOCAL_MACHINE, "SOFTWARE\\COMPANY\\PRODUCT", 0, KEY_QUERY_VALUE, &hKey ) ) { DWORD dwBufLen; char szDBName[256]; if (ERROR_SUCCESS == RegQueryValueEx( hKey, "DatabaseName", NULL, NULL, (LPBYTE) szDBName, &dwBufLen) ) { OtherFunction(szDBName); } else { OtherFunction("\\default\\Data\\MyDatabase"); } RegCloseKey( hKey ); } else { OtherFunction("\\default\\Data\\MyDatabase"); } Cheers Steevie Re: Retrieving registry values Michael Dunn31-Oct-01 8:28 Michael Dunn 31-Oct-01 8:28  DWORD dwBufLen; char szDBName[256]; You need to init dwBufLen to the size of your data buffer so the API knows how large your buffer is. char szDBName[256]; DWORD dwBufLen = sizeof(szDBName); --Mike-- http://home.inreach.com/mdunn/ If there's something strange / in your VC code / Who you gonna call? / Ghostbusters! your with and Dependency Walker / DLL functions -Dy31-Oct-01 4:30 -Dy 31-Oct-01 4:30  Hi all, Does anyone know how I can find out what is available from a DLL in code? I can find out what DLL's an app/dll requires (cause I got the code from MSDN ), but I'd like to take this a step further and find out what the DLL offers and what gets used by a calling app/dll. Much like the way Dependency Walker does it... Cheers, Dylan Re: Dependency Walker / DLL functions Bernhard31-Oct-01 4:56 Bernhard 31-Oct-01 4:56  if you right click on the dll in the explorer there comes this menu up.. if you use the second function ( under "open with" should be sthing like "view item".. i don't know that exactly cause i am using the german version of the os) you should see all the exportet functions of this dll... hope this works for you... bernhard ""Politicians and diapers have one thing in common. They should both be changed regularly and for the same reason." Re: Dependency Walker / DLL functions -Dy31-Oct-01 5:52 -Dy 31-Oct-01 5:52  Thanks for the note, but I'm trying to do this in code Any suggestions anyone? Re: Dependency Walker / DLL functions #realJSOP31-Oct-01 6:11 #realJSOP 31-Oct-01 6:11  This is kind of tricky to do. An exported function can be represented by a name or an ordinal. If they use an ordinal, all you have is the integer value. If it's a name, it could be mangled. All exported functions are written to the exports table. the exports table contains the name (and address to the entry point) for each exported routine. Look on MSDN for articles about the dumpbin utility. "...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001 Re: Dependency Walker / DLL functions -Dy31-Oct-01 6:17 -Dy 31-Oct-01 6:17  Thanks very much John, this has given me a good starting point Retrieving font version Jens Doose31-Oct-01 3:30 Jens Doose 31-Oct-01 3:30  Hi all, I need to get the version of a font file (.ttf). It is possible to see the version with the Windows font viewer so I guess it must be possible to get the file version. Does anyone know how to get the font file version programmatically with a API call or something like that? Thanks for your help in advance! Jens Doose

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