C / C++ / MFC

Re: How not to lose focus when a child dialog is created

11-Feb-09 5:37

Do you have the child's parent and owner set correctly?

"Old age is like a bank account. You withdraw later in life what you have deposited along the way." - Unknown

"Fireproof doesn't mean the fire will never come. It means when the fire comes that you will be able to withstand it." - Michael Simmons

materatsu11-Feb-09 6:10

materatsu

11-Feb-09 6:10

i only set parent in the create method:

Create(MYDIALOG::IDD, this);

is this what you mean?

Re: How not to lose focus when a child dialog is created

David Crow11-Feb-09 6:15

Re: How not to lose focus when a child dialog is created

11-Feb-09 6:15

See here.

Code-o-mat11-Feb-09 6:10

Code-o-mat

11-Feb-09 6:10

Try creating your popup window hidden and then show it with ShowWindow(SW_SHOWNOACTIVATE).

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: How not to lose focus when a child dialog is created

Perspx11-Feb-09 6:14

Perspx

11-Feb-09 6:14

Damn, beat me to it! Dead | X|

Regards,
--Perspx

"A refund for defective software might be nice, except it would bankrupt the entire software industry in the first year."
-Andrew Tanenbaum

"Einstein argued that there must be simplified explanations of nature, because God is not capricious or arbitrary. No such faith comforts the software engineer."
-Fred Brooks

Re: How not to lose focus when a child dialog is created

Code-o-mat11-Feb-09 6:17

Code-o-mat

11-Feb-09 6:17

Yepp *blows smoke off fingers* Big Grin | :-D

> The problem with computers is that they do what you tell them to do and not what you want them to do. <
> Life: great graphics, but the gameplay sux. <

Re: How not to lose focus when a child dialog is created

Perspx11-Feb-09 6:11

Perspx

11-Feb-09 6:11

Using the SW_SHOWNOACTIVATE flag when creating/showing your window should show it without your parent window losing focus.

Regards,
--Perspx

Re: How not to lose focus when a child dialog is created

materatsu11-Feb-09 6:44

materatsu

11-Feb-09 6:44

i have tried

Cdialog *d = new Cdialog(this);
	d->Create(Cdialog::IDD, this);
	d->ShowWindow(SW_SHOWNOACTIVATE);

and it stills do the same, it stills lose focus.

what i have notice is that using disable property of the dialog does not lose focus in the parent window but it of course disable the child window

How to block unwanted websites using socket programming?

ArashFar11-Feb-09 4:49

ArashFar

11-Feb-09 4:49

I need to write an application that doesnt allow some specific websites to be opened. I think the solution is socket programming on the port 8080 but not sure about the details.
Am I wrong about the solution?
What is the solution for this?
Thanks a lot.

Mike

Re: How to block unwanted websites using socket programming?

David Crow11-Feb-09 5:36

Re: How to block unwanted websites using socket programming?

11-Feb-09 5:36

ArashFar wrote:
What is the solution for this?

I don't know, but a search such as this might give you some ideas.

ArashFar11-Feb-09 6:22

ArashFar

11-Feb-09 6:22

Thanks but as you see the results are just bunch of companies with a proxy application to sell Cry | :((

Arash

Re: How to block unwanted websites using socket programming?

David Crow11-Feb-09 6:25

Re: How to block unwanted websites using socket programming?

11-Feb-09 6:25

I realize that, but sometimes even looking from the outside-in, you can glean helpful hints as to how an application works.

led mike11-Feb-09 7:40

led mike

11-Feb-09 7:40

DavidCrow wrote:
sometimes even looking from the outside-in, you can glean helpful hints as to how an application works.

Or you could just go read something like this[^] Wink | ;)

Re: How to block unwanted websites using socket programming?

ArashFar14-Feb-09 7:40

ArashFar

14-Feb-09 7:40

Thanks!
That is a great site

Arash

Read KKEY_CURRENT_USER Registry?

Software200711-Feb-09 4:48

11-Feb-09 4:48

How can I tell if the registry key doesn't exit?

GetProfileInt(strSection, "Variable",0);

Well, this will return 0 if Variable doesn't exist by default. How can I know if "Variable" doesn't even exist, becasue I would like to do something else based on that.

Thanks

sft

David Crow11-Feb-09 5:01

11-Feb-09 5:01

Software2007 wrote:
How can I tell if the registry key doesn't exit?

By calling RegQueryValueEx().

Software2007 wrote:
GetProfileInt(strSection, "Variable",0);

This function is intended for .ini files.

Software200711-Feb-09 5:06

11-Feb-09 5:06

Thanks. Am I understanding this correctly?
RegQueryValueEx():Retrieves the type and data for the specified value name associated with an open registry key.

This seems to retrieve the type of "Variable" in my example, I would like to know if "Variable" exists in the registry before I do anything to it.

Thanks

sft

led mike11-Feb-09 5:15

led mike

11-Feb-09 5:15

Software2007 wrote:
Am I understanding this correctly?

Software2007 wrote:
This seems to retrieve the type of "Variable" in my example, I would like to know if "Variable" exists in the registry before I do anything to it.

I believe your capacity to understand is like quadrupled if you actually read the documentation

If the lpValueName registry value does not exist, the function returns ERROR_FILE_NOT_FOUND.

Software200711-Feb-09 5:20

11-Feb-09 5:20

Thanks. I feel smarter already. Cool | :cool:

sft

Software200711-Feb-09 5:59

11-Feb-09 5:59

The above wouldn't work for what I need. RegOpenKeyEx did.

sft

Class wrapper

jung-kreidler11-Feb-09 4:29

jung-kreidler

11-Feb-09 4:29

Hi all,

I've got a small problem with derived classes and a wrapper class. To show you what my problem is, I write down some code. Here's what I do now:

class Base
{
doFunc1();
virtual doFunc2();
}

class Der1 : public Base
{
doFunc2();
}
class Der2 : public Base
{
doFunc2();
}

class Wrap
{
Der1 *d1;
Der2 *d2;
doFunc1();
doFunc2();
}

Wrap::doFunc1()
{
if(somecondition)
d1->doFunc1();
else
d2->doFunc1();
}

Wrap::doFunc2()
{
if(somecondition)
d1->doFunc2();
else
d2->doFunc2();
}

From my program I can call:
Wrap::doFunc1();

Now I want to remove the Wrapper calls and replace them with function pointers like this:
class Wrap
{
Der1 *d1;
Der2 *d2;
(*doFunc1)();
(*doFunc2)();
}

Wrap::Wrap
{
if(somecondition)
this->doFunc1 = &Der1::doFunc1;// causes C2440
this->doFunc2 = &Der1::doFunc2;// causes C2440
else
this->doFunc1 = &Der1::doFunc1;// causes C2440
this->doFunc2 = &Der1::doFunc2;// causes C2440
}

From my program I would like to call:
Wrap::doFunc1();

The line this->doFunc1 = ... causes C2440: type cast: cannot convert from (__thiscall Der1::*)() to (__cdecl*)().

I know that class members are not the same as normal c-functions, this causes the __thiscall to __cdecl error, but I thought that there is some trick to get it to work.
Any ideas?

jung-kreidler

Re: Class wrapper

«_Superman_»11-Feb-09 15:38

«_Superman_»

11-Feb-09 15:38

Look at the pointer-to-member operators .* and ->*

«_Superman_»

Re: Class wrapper

jung-kreidler11-Feb-09 20:15

jung-kreidler

11-Feb-09 20:15

Does not help, since my Wrapper is a different class. Pointer-to-member works only inside a class, e.g. Testpm: void (Testpm::*pmfn)() = &Testpm::m_func1;. I need e.g. void (Wrap::*doFunc1)() = &Der1::doFunc1. Using it on different classes causes C2440 Frown | :(

Thanks for the answer. Big Grin | :-D

Keypad Dialog

Reagan Conservative11-Feb-09 3:42

Reagan Conservative

11-Feb-09 3:42

I have a dialog that is a keypad. It is called from a Login dialog. The problem is that if a mouse button is clicked outside the keypad dialog, the keypad becomes unusable. I'm thinking that this dialog should be modal. How to accomplish setting the keypad dialog as modal in the following code snippet

void CLogin::OnBnEnterId()
{
// TODO: Add your control notification handler code here
// have to place coords here, since initialization takes place later

winInfo.popup_X = 395;
winInfo.popup_Y = 50;

CKeypad kp(mainFramePtr->wndPtr, winInfo);

int intValue = 0;

if (kp.Get_Integer("Enter ID Number", 0, 99999, &intValue))
{
char temp[6];
char temp1[6];
.
.
.
.

The keypad closes on button that returns IDOK.

Thanks for your help.

AF Pilot

Re: Keypad Dialog

David Crow11-Feb-09 4:28