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I have an ActiveX control that I wrote that is a Simple Frame Control with an Embedded Property Sheet. The sheet has 2 pages with each page having a few controls on it. Here is its basic structure:
- Control Class
---- Property Sheet Class
-------- Page 1 Class
-------- Page 2 Class
This control works fine in the ActiveX Test Container as well as when I put it on a dialog by itself. However, if I put an OK button on the dialog with the control, I end up getting into an infinite message loop with the WM_GETDLGCODE message being sent/handled constantly. I have tried playing around with the DS_CONTROL, WS_EX_CONTROLPARENT, WS_TABSTOP, and WS_GROUP flags for the controls, pages, and the sheet itself as well as the test dialog, but it still ends up in this loop anytime the ActiveX control loses focus and then regains it (e.g. if the OK button gains focus, but is not clicked or if another program is made active and then I return to my test container).
My test container is very simple:
- Dialog class
---- CWnd wrapper for ActiveX control
Has anyone had this problem or know of a possible solution to it?
If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week
Zac
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I found a solution. As it turns out, Windows/MFC (not sure which) sets the default flags (regardless of what you turn on or off in the dialog template). To get around this, I had to use ModifyStyle and ModifyExStyle to remove the DS_CONTROL, WS_TABSTOP, and WS_EX_CONTROLPARENT flags from the property pages.
If you decide to become a software engineer, you are signing up to have a 1/2" piece of silicon tell you exactly how stupid you really are for 8 hours a day, 5 days a week
Zac
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Zac Howland wrote:
8 hours a day, 5 days a week
Lucky you; you've only got it for 40 hours a week.
Software Zen: delete this;
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Hi there.
I am using
Operating System: Windows XP
Project: Visual Studio 2003 C++ MFC Dialog Based Application
I subclassed an edit box control because I want to capture the WM_KEYDOWN messages when a user enters characters in the edit box. I need this because I want to measure the time interval between keystrokes for the phrase (a password in this case) that the user enters in the edit box.
But I want the user to enter the password twice, once in one edit box and again in another. So I created two edit boxes and then to each edit box added a control variable of type the custom edit box subclass I created.
Now the problem is that when a enter a character in either of the edit boxes, the OnKeyDown function of the subclass is called.
How do I know in which edit box did the user type in the key?
Should I rather create two subclasses for the edit boxes, and create a control variable for the one editbox that is of type: the one subclass, and to the other editbox I add a control variable that is of type: the other subclass?
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Use CWnd::GetDlgCtrlID().
"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown
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I have a program that hopefully will update itself. I call
this program Setup.
I execute from Setup.exe the file Update.exe which downloads
Setup.txt. I want to close Setup.exe, delete it, rename Setup.txt
as Setup.exe and then reexecute Setup.exe. The only thing I cant
figure out is how to close Setup.exe from Update.exe.
Please, any response any one can give me will be greatly appreciated.
Sincerely,
Danielle Brina (an overworked graduate student)
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DanYELL wrote:
The only thing I cant
figure out is how to close Setup.exe from Update.exe.
Use TerminateProcess(). If the process has a window, you could also post a WM_CLOSE message to that window.
"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown
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Any chance you have a segment of code that shows how to
terminate a process if you only know the name of the executable
to terminate and where it is located?
So I want to close notepad.exe located in:
c:/temp/notepad.exe
Any ideas?
Please, any response you can give me will be greatly appreciated.
Sincerely,
Danielle Brina (an overworked graduate student)
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Another way to do this is by having Setup.exe pass Update.exe its main window handle (hex representation as a command line arg). When Update.exe wants to shutdown Setup.exe, it should post a private command (eg: IDC_PLEASE_SHUTDOWN) to Setup.exe's window, which will cause it to exit gracefully. Setup.exe should wait until the window handle is no longer valid before renaming Setup.txt to Setup.exe and executing it.
I admit this method is a bit cheesy, but it works and is safe.
My new year's resolution: 2048 x 1536
Home | Music | Articles | Freeware | Trips
ravib@ravib.com
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Can you show me how to do this? Any sample code?
Please, please any response will be greatly appreciated.
Sincerely,
Danielle Brina (an overworked graduate student)
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to update applications, use an existing updater...
There are a lot here, but this one is mine. It includes code to close another application (see CInstall::CloseApplication() in Install.cpp). Just copy the code if it does what you need.
Geert
Want to spread the newest version of your software automatically for free? Use Updater!
Visit my website: www.gvhsoftware.org
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DanYELL wrote:
The only thing I cant
figure out is how to close Setup.exe from Update.exe.
So don't bother. Pass the process id of Setup.exe to Update.exe as a parameter, then
a) once Setup.exe has started Update.exe, get Setup.exe to shut itself down
b) the first thing Update.exe does is wait until the process with the passed in process ID is not running (EnumProcesses will help here), then it can do all it needs to.
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Hi
i am trying to migrate my MFC applixcation from VC6 to VC8, i am receiving the following MIDL error does any body have any idea how to resolve this.
.\FNLIST.ODL(106) : error MIDL2072 : inapplicable attribute : [propget] [ Field 'Font' of Dispinterface '_DFnListView' ]
Thanks
Saurabh Gupta
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template <typename T>
inline bool finite(const & T) { return true; }
template<> inline bool finite<double>(double const & d) { return _finite(d) != 0; }
gives an error
error C2912: explicit specialization; 'bool MLib::finite(const double &)' is not a specialization of a function template (VC7)
I guess I have a syntax error here, or a deep misunderstanding of template specialization (or both). What am I doing wrong?
P.S.
would a
template <typename T> finite(T const &) { return true }
inline bool finite(double const & d) { ... }
work as well?
Pandoras Gift #44: Hope. The one that keeps you on suffering.
aber.. "Wie gesagt, der Scheiss is' Therapie"
boost your code || Fold With Us! || sighist | doxygen
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template <typename T> inline
bool finite(const & T) { return true; }
template<typename T> inline
bool finite(double const & d) { return _finite(d) != 0; }
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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You have your & in the wrong place. Change the template's param list to (const T& ). (const & T) means "one parameter named T of type const int&".
--Mike--
Visual C++ MVP 
LINKS~! Ericahist | 1ClickPicGrabber | CP SearchBar v2.0.2 | C++ Forum FAQ
You cannot stop me with paramecium alone!
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oah! looks like a typo
Will check tomorrowe (now it's Feierabend )
Pandoras Gift #44: Hope. The one that keeps you on suffering.
aber.. "Wie gesagt, der Scheiss is' Therapie"
boost your code || Fold With Us! || sighist | doxygen
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Hi I am trying to migrate my VC6 MFC Application to VS2005 Beta 2
The App. uses a call to AfxLockGlobals but this function seams to be excluded from the new Version of MFC (V8).
Is there any possibility to use this function or there is any alternative for what this function does?
Saurabh Gupta
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I have a .dll that i am writing and cannot use standard MFC classes such as CString to parse a blob of data. So i am using std::string but i have never used this before and am so confused. I need to search a string for a key word. Once i find the keyword, i have to parse the data afterwards to pick out the necessary data that i need.
I am using the find method but just stuck and confused to accomplish my goal. Can anyone offer some examples or help? E.g.
If i have a string that looks like
xxxcdfdftbvbfggbnghghg Name: Todd Shields ccfgfgnfgnrri DOB:091580 hgertrtreggeegegggggggggggg
But i want to get the name and the DOB. There is no standard in terms of how much space is allocated for name or DOB. I just have to find it and get the name and DOB from the string.
Any input is appreciated.
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Something like:
string s = "xxxcdfdftbvbfggbnghghg Name: Todd Shields ccfgfgnfgnrri DOB:091580 hgertrtreggeegegggggggggggg";
int nPos1 = s.find("Name: ");
int nPos2 = s.find("DOB: ");
string name = s.substr(nPos1 + 5, nPos2 - nPos1);
"Ideas are a dime a dozen. People who put them into action are priceless." - Unknown
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typedef std::string::size_type size_type;
std::string name_string = "Name:";
std::string dob_string = "DOB:";
size_type name_index = mystring.find(name_string);
size_type dob_index = mystring.find(dob_string,name_index+name_string.size());
OR
size_type name_index = mystring.find(std::string("Name:"));
size_type dob_index = mystring.find(std::string("DOB:",name_index+4);
Both of the above ass-u-mes all the data is there (no error checking).
You can access indivual characters using operator[], for simple parsing.
// If you need compare
int compare(
size_type p0, // index into mystring
size_type n0, // number of characters to compare
const basic_string& str);
If you want to go back in time, then you can get a C-string pointer by call mystring.c_str().
The just write the parsing code the same as you would in C.
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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What would be the return on the find? Would it return -1 if failed?
Where is some decent documentation on this that you would recommend. I have a decent start but i feel i may need some more methods for parsing.
Like for example. If a name is Todd Shields, i have to break up into first name and last name. So i would have to loop through and parse until i get a space and that will be my first name.
How is the operator[] used?
Thanks
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LCI wrote:
What would be the return on the find?
The index/offset of the first character in the string you are searching that matches what you are searching for.
LCI wrote:
Would it return -1 if failed?
It returns std::string::npos, which is -1.
LCI wrote:
How is the operator[] used?
for( size_type i=0; i<mystring.size(); ++i )
char c = mystring[i];
As for parsing; the simpilist method is to use loops, as you suggested.
Documentation:
1) "The C++ Programming Language" by Bjarne Stroustrup (The Creator of C++), whatever the latest vesion is.
2) Search the web for keywords like: "Bjarne Stroustrup", "P.J. PLAUGER" (The guy who (probably) wrote the template library you're using), STL (The Standard Template Library), etc... . There are lots of sights that cover this subject.
INTP
"The more help VB provides VB programmers, the more miserable your life as a C++ programmer becomes."
Andrew W. Troelsen
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Hi,
I have written a class, CWizardSheet, which extends CPropertySheet. It is set to wizard mode. An instance of CWizardSheet, contains several pages, which extend CPropertyPage, so naturally I have to do directive includes for these pages in the CWizardSheetClass. However, CWizardSheet has a variable, info, which I would like each of the pages to be able to access.
I have tried to do a directive include of the CWizardSheet in the pages, but that causes problems because of cyclic redefinition. I have also tried to add a 'set' method in each of the pages so that I can 'send' a pointer to the variable from the CWizardSheet's OnInit() method.
The problem with the second approach is that after I leave a page (clicking next), if I decide to come back to it (clicking back), if I make changes to the variable, it no longer changes the info variable in the CWizardSheet.
To solve this, I have decided that instead of 'setting' the variable in the OnInit() method in the CWizardSheet class, I should do it in another method which is called every time that the wizard changes to another page (set the top level page's variable).
My question is: Is there a method in CPropertySheet that I can override to catch the event when the wizard changes the top page, and if so, how do I use it and is it possible to get a pointer to that page? Other suggestions to solve this problem are also welcome.
Thanks in advance,
-----------------
Genaro
\\\|
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@ @
_\\
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_/
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picazo wrote:
However, CWizardSheet has a variable, info, which I would like each of the pages to be able to access.
In the CPropertyPage-derived class, call GetParent(), and cast the result to a pointer to your CPropertySheet derived class.
picazo wrote:
My question is: Is there a method in CPropertySheet that I can override to catch the event when the wizard changes the top page
No, but you can handle OnSetActive in the CPropertyPage-derived class.
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