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Creating DLLs in VC for use in VB Bagyalakshmi SN26-Jan-00 20:18 Bagyalakshmi SN 26-Jan-00 20:18  Hi, We normally create DLLs in VC for all Backend operations and use VB for GUI, use these VC objects and methods to interface with data servers. My question is: In VB, if we open the object browser and see the properties and methods of these libraries, the first line of the panel in the bottom of the object browser states the Function name and Arguements required and the return value type. The second line states that the class is a Member of some XYZ library... The third line simply states method <methodname> or property <propertyname> But the third line of ohher VB's library like VBA/VBRUN etc has more meaningful messages for each of the functions and properties available in them. Now, how to make the Object Browser display such meaningful messages for my user-defined Dlls classes? I do not know where to define them when creating new classes in my dll? Cheers, Lakshmi RE: Creating DLLs in VC for use in VB Nick Hodapp29-Jan-00 11:29 Nick Hodapp 29-Jan-00 11:29  The "third line" in the VB Object Browser is displaying the help-string for the property or method in question. Help-strings are defined in the component's type-library. The source for the type-library is typically a .idl file (could be .odl if you're using MFC). The ATL wizards that create interfaces assign a default help-string of "property NAME", where NAME is the name of your property. Simply change the contents of this string and recompile your type-library to update the value in the VB (or any other) browser. The idl syntax for help strings is: [helpstring("My Help String")] HRESULT SomeMethod(); Hope this helps! ================== The original message was: Hi, We normally create DLLs in VC for all Backend operations and use VB for GUI, use these VC objects and methods to interface with data servers. My question is: In VB, if we open the object browser and see the properties and methods of these libraries, the first line of the panel in the bottom of the object browser states the Function name and Arguements required and the return value type. The second line states that the class is a Member of some XYZ library... The third line simply states method <methodname> or property <propertyname> But the third line of ohher VB's library like VBA/VBRUN etc has more meaningful messages for each of the functions and properties available in them. Now, how to make the Object Browser display such meaningful messages for my user-defined Dlls classes? I do not know where to define them when creating new classes in my dll? Cheers, Lakshmi FlexGrid Activation Problem glerner26-Jan-00 16:58 glerner 26-Jan-00 16:58  Hi, I have a embedded FlexGrid control on a dialog box and I have distributed MSFLXGRD.OCX and registered it in the production machine. It was working fine and then all of a sudden it stopped working (the control doesn't load). I think it has to do with licensing of controls, but I thought embedded controls have license keys stored in the executable code. What could have went wrong and how can I fix this problem? Thanks. Glenn Nested CSplitterWnd('s) and CSize Frank Deo25-Jan-00 11:01 Frank Deo 25-Jan-00 11:01  Can someone explain to me how to get the Panes of a nested splitter window to size up correctly? I know that I should know this, but I can't figure it out. My splitter is 2 rows. Nested in the 1st row is 2 columns. So, three views. |---------| | | | | | | ----------- | | ----------- ^bad graphic. The 2nd row always takes up the whole client area of the window. The nested portion is correct, once you drag the splitter bar down. Any explanation of how to do this would be great. Thanks, and sorry for the dumb question. Frank RE: Nested CSplitterWnd('s) and CSize Mike Dunn25-Jan-00 14:50 Mike Dunn 25-Jan-00 14:50  You set the initial size for each view in the splitter in the call to CSplitterWnd::CreateView(). For starters, try always passing a size of, say, 100x100. Then experiment with the numbers until you get the look you want. --Mike-- ================== The original message was: Can someone explain to me how to get the Panes of a nested splitter window to size up correctly? I know that I should know this, but I can't figure it out. My splitter is 2 rows. Nested in the 1st row is 2 columns. So, three views. |---------| | | | | | | ----------- | | ----------- ^bad graphic. The 2nd row always takes up the whole client area of the window. The nested portion is correct, once you drag the splitter bar down. Any explanation of how to do this would be great. Thanks, and sorry for the dumb question. Frank RE: RE: Nested CSplitterWnd('s) and CSize Frank Deo26-Jan-00 12:08 Frank Deo 26-Jan-00 12:08  I did that...but row 0 was always 0 high. Then, all of a sudden I remembered something... CSplitterWnd::SetRowInfo(int row, int cyIdeal, int cyMin ); It worked. Thanks! Frank ================== The original message was: You set the initial size for each view in the splitter in the call to CSplitterWnd::CreateView(). For starters, try always passing a size of, say, 100x100. Then experiment with the numbers until you get the look you want. --Mike-- ================== The original message was: Can someone explain to me how to get the Panes of a nested splitter window to size up correctly? I know that I should know this, but I can't figure it out. My splitter is 2 rows. Nested in the 1st row is 2 columns. So, three views. |---------| | | | | | | ----------- | | ----------- ^bad graphic. The 2nd row always takes up the whole client area of the window. The nested portion is correct, once you drag the splitter bar down. Any explanation of how to do this would be great. Thanks, and sorry for the dumb question. Frank Need a SMALL database solution Ryan Schneider25-Jan-00 7:12 Ryan Schneider 25-Jan-00 7:12  Can anyone suggest a SMALL databsase solution, where the runtime needed is on the order of 100-200k rather than 1-7 meg like ADO or Jet. Doesn't need to be full featured, just small. Thanks, Ryan Schneider NeoWorx Inc. RE: Need a SMALL database solution Laura Michaels3-Feb-00 5:08 Laura Michaels 3-Feb-00 5:08  The original message was: >>Can anyone suggest a SMALL databsase solution, where >>the runtime needed is on the order of 100-200k rather >>than 1-7 meg like ADO or Jet. Doesn't need to be >>full featured, just small. You may want to check into the following: http://www.startech.keller.tx.us/xbase/xbase.html - Xbase compatible database http://www.equi4.com/metakit/ - Metakit http://www.orcane.net/freeodbc++/ - libodbc++ Needs ODBC manager. Similar to Java's JDBC ftp://ftp.simtel.net/pub/simtelnet/msdos/cpluspls/vb31027.zip - VDB The following links list database library collections: http://cui.unige.ch/OSG/info/FreeDB/FreeDB.home.html http://www.acm.org/sigmod/databaseSoftware/ Hope they're of use. Closing a CFormView Jed24-Jan-00 5:59 Jed 24-Jan-00 5:59  Hi !!! In my MDI App, if the user close a child window (derived from CFormView)by clicking on the top right cross button (X), I would like my program to ask him if he is sure or not. How could I do that ? Which message do I have to intercept ??? Thanks for your help !!! Jed RE: Closing a CFormView Mike Dunn24-Jan-00 7:13 Mike Dunn 24-Jan-00 7:13  Read the docs on CDocument::CanCloseFrame() That looks like it'll suit your needs. --Mike-- ================== The original message was: Hi !!! In my MDI App, if the user close a child window (derived from CFormView)by clicking on the top right cross button (X), I would like my program to ask him if he is sure or not. How could I do that ? Which message do I have to intercept ??? Thanks for your help !!! Jed How could I draw some system items manually. Zhenzhe Wang22-Jan-00 17:59 Zhenzhe Wang 22-Jan-00 17:59  Hi, everyone. When I want to write some classes to display a menubar like VC IDE, I encountered a problem about drawing system items, the three buttons ,icon and system menu which is originally on the child window caption bar.When the child window is maximized, I have to draw them on my menubar, the icon and menu is easy to draw, but how about the three buttons on right. Is there some effient ways to do these jobs? Thanks in Advance! Wang Zhenzhe 2000/01/23 RE: How could I draw some system items manually. Mike Dunn23-Jan-00 15:26 Mike Dunn 23-Jan-00 15:26  The API to do this is DrawFrameControl(). --Mike-- ================== The original message was: Hi, everyone. When I want to write some classes to display a menubar like VC IDE, I encountered a problem about drawing system items, the three buttons ,icon and system menu which is originally on the child window caption bar.When the child window is maximized, I have to draw them on my menubar, the icon and menu is easy to draw, but how about the three buttons on right. Is there some effient ways to do these jobs? Thanks in Advance! Wang Zhenzhe 2000/01/23 Having some HWND trouble Vega22-Jan-00 12:30 Vega 22-Jan-00 12:30  i'm looking to find an HWND for a stationary Dialog box this is what SPY++ gives me WINDOW: 000004AC TEXT: "" CLASS: #32770(Dialog) STYLE: 50000044 RECT: 6,380)-(598,524) 592x144 THREAD ID: FFFCB805 PROCESS ID: FFFCBFC9 is there anyway i can find the HWND or a CWnd to this dialog box, and veryify it with this or any way i can get the mainwindow, and follow through, to this dialog? it doesnt matter if its MFC or winAPI Just need a way to get to this HWND any help would be great regards! RE: Having some HWND trouble chrisd24-Jan-00 16:28 chrisd 24-Jan-00 16:28  The Window line (WINDOW:000004AC) is the HWND of the Dialog. HTH, Chris ================== The original message was: i'm looking to find an HWND for a stationary Dialog box this is what SPY++ gives me WINDOW: 000004AC TEXT: "" CLASS: #32770(Dialog) STYLE: 50000044 RECT: 6,380)-(598,524) 592x144 THREAD ID: FFFCB805 PROCESS ID: FFFCBFC9 is there anyway i can find the HWND or a CWnd to this dialog box, and veryify it with this or any way i can get the mainwindow, and follow through, to this dialog? it doesnt matter if its MFC or winAPI Just need a way to get to this HWND any help would be great regards! Layered Window Impl on 98 Eric Crahen21-Jan-00 16:01 Eric Crahen 21-Jan-00 16:01  I have seen several apps on Win98 that use softshape's ActiveSkin ActiveX control. Mostly this control allows people to haev a coherent means for creating skinned 'applications'. It includes one function that allows you to set a transparency level. If you download the control right from softshape you can use the Visual Studio tools to view the interfaces their control provides. There is an app called BoxCard @ http://softini.cjb.net that uses this feature and will let you see it in action I've tried several things briefly to try and implement some transluceny. It is pretty easy to make a translucent menu or dialog as long as it is WITHIN a frame window or something. You can just make owner draw controls that get the parentdc and alphablend the control DC with the parents. This works really well if you have a stable bitmap background. However, this become very hard to do when you have other windows moving around behind a translucent control or you try to do this on the windows desktop. Win2K provides a LayeredWindow to help with this. Does anyone have access to a W2K dev kit that contains this implementation? I check my VC 6 for this but it does not seem to be included. I'd like to see how they did this. I also considered it might be possible to control how windows draws the window, after all - doing this can't befar off from what programs like eFX and WindowBlinds have been doing to change the frame bars on existing windows already. - Eric Any suggestions? I plan on putting all this info together with some other controls I've made and putting it up on the web with source. MFc is nice, but its really easy to think of semi-simple things that are very diffculut to do - like change an image on a static control (w/o hiding an existing one and displaying a new control) Anyways, I'm getting off on a tangent. Please let me know you thoughts or tips. - Eric crahen@buffalo.edu DrCrahen@mad.scientist.com Layered Window Impl on 98 Eric Crahen21-Jan-00 16:01 Eric Crahen 21-Jan-00 16:01  I have seen several apps on Win98 that use softshape's ActiveSkin ActiveX control. Mostly this control allows people to haev a coherent means for creating skinned 'applications'. It includes one function that allows you to set a transparency level. If you download the control right from softshape you can use the Visual Studio tools to view the interfaces their control provides. There is an app called BoxCard @ http://softini.cjb.net that uses this feature and will let you see it in action I've tried several things briefly to try and implement some transluceny. It is pretty easy to make a translucent menu or dialog as long as it is WITHIN a frame window or something. You can just make owner draw controls that get the parentdc and alphablend the control DC with the parents. This works really well if you have a stable bitmap background. However, this become very hard to do when you have other windows moving around behind a translucent control or you try to do this on the windows desktop. Win2K provides a LayeredWindow to help with this. Does anyone have access to a W2K dev kit that contains this implementation? I check my VC 6 for this but it does not seem to be included. I'd like to see how they did this. I also considered it might be possible to control how windows draws the window, after all - doing this can't befar off from what programs like eFX and WindowBlinds have been doing to change the frame bars on existing windows already. - Eric Any suggestions? I plan on putting all this info together with some other controls I've made and putting it up on the web with source. MFc is nice, but its really easy to think of semi-simple things that are very diffculut to do - like change an image on a static control (w/o hiding an existing one and displaying a new control) Anyways, I'm getting off on a tangent. Please let me know you thoughts or tips. - Eric crahen@buffalo.edu DrCrahen@mad.scientist.com CWnd & CDC Ivan A. Fotan21-Jan-00 1:20 Ivan A. Fotan 21-Jan-00 1:20  I have CWnd* wnd; And I have CDC* pDC; How can I draw wnd to pDC? RE: CWnd & CDC Jesse Ezell5-Feb-00 19:17 Jesse Ezell 5-Feb-00 19:17  Have you tried using CWnd::OnDraw(CDC *pDC)? ================== The original message was: I have CWnd* wnd; And I have CDC* pDC; How can I draw wnd to pDC? Dialogs with ActiveX controls in MFC regular dlls Anonymous20-Jan-00 16:41 Anonymous 20-Jan-00 16:41  I've been developing an MFC regular dll which exports a function which creates and displays a dialog. Everytthing works fine. However I get a problem when I insert an Active -X control (eg: MS-Chart control) at design time and then display the dialog. In this case when I call my exported function the dialog is not displayed at all, and I noticed one thing DoModal returns IDCANCEL. What do I do to solve this problem. Thanks, Anyhelp would be highly appreciated. RE: Dialogs with ActiveX controls in MFC regular dlls DomDo24-Jan-00 22:48 DomDo 24-Jan-00 22:48  Did you call AfxOleInit() and AfxEnableControlContainer() ? ================== The original message was: I've been developing an MFC regular dll which exports a function which creates and displays a dialog. Everytthing works fine. However I get a problem when I insert an Active -X control (eg: MS-Chart control) at design time and then display the dialog. In this case when I call my exported function the dialog is not displayed at all, and I noticed one thing DoModal returns IDCANCEL. What do I do to solve this problem. Thanks, Anyhelp would be highly appreciated. Regular dll & Active X control in a dialog Anonymous25-Jan-00 1:08 Anonymous 25-Jan-00 1:08  Actually the client part of the code creates an MFC worker thread which calls my exportred function. I found a KB article in MSDN which said that I need to call OleInitialize(0) from my client. I did that also, but the dialog is still not displayed. Any ideas ? Here is the pseudo-code, UINT Thread Proc(LPVOID ) { //exported function from regular dll which //has a dialog with a Registered Active-X control ShowDlg(); return 0; } void CMainFrame::OnViewTest() { AfxBeginThread(x,y); } The thing works fine if there is no thread involved. ================== The original message was: Did you call AfxOleInit() and AfxEnableControlContainer() ? ================== The original message was: I've been developing an MFC regular dll which exports a function which creates and displays a dialog. Everytthing works fine. However I get a problem when I insert an Active -X control (eg: MS-Chart control) at design time and then display the dialog. In this case when I call my exported function the dialog is not displayed at all, and I noticed one thing DoModal returns IDCANCEL. What do I do to solve this problem. Thanks, Anyhelp would be highly appreciated. File-Open button in Word2000 Jeremy Davis19-Jan-00 3:59 Jeremy Davis 19-Jan-00 3:59  Anyone written a custom button that looks like the "Open" button in the common file open dialog in Word2000? On the right of the button is an arrow that when pressed brings up a menu, however when any other part of the button is pressed the button asks normally. Thanks C/C++ guru's -- is this possible Brian Anderson18-Jan-00 9:32 Brian Anderson 18-Jan-00 9:32  Hi all, is it possible in c/c++ to call a function that is created from variables. .. ex/ CString myFunction myFunction = "SomeFunction()"; i would like to call the contents of myFunction. don't know if its possible, any insight appreciated Brain RE: C/C++ guru's -- is this possible Tim Deveaux19-Jan-00 5:09 Tim Deveaux 19-Jan-00 5:09  Possible? Sort of kind of - check out Pete Becker's reply to a similar question at: http://www.cuj.com/archive/1609/qa.html ================== The original message was: Hi all, is it possible in c/c++ to call a function that is created from variables. .. ex/ CString myFunction myFunction = "SomeFunction()"; i would like to call the contents of myFunction. don't know if its possible, any insight appreciated Brain RE: C/C++ guru's -- is this possible Peter A. Tolan29-Jan-00 21:15 Peter A. Tolan 29-Jan-00 21:15  ================== The original message was: Hi all, is it possible in c/c++ to call a function that is created from variables. .. ex/ CString myFunction myFunction = "SomeFunction()"; i would like to call the contents of myFunction. don't know if its possible, any insight appreciated Brain Brian: Yes, this is possible. The function GetGreater will get the greater of the two values passed in... int GetGreater ( int, int ) ; typedef int (*GetGreater) (int, int) ; // this declares a ptr to this function. Then in the code... { PGetGreater pgg; int maxvalue; pgg = GetGreater; if ( pgg ) { maxvalue = pgg ( 5, 3 ) ; } } Or something like that Peter.

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