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Hi ,
am not able to useSet Buddy MFC beacuse i have declared my edit box variable as double. if i pass the address of my edit box variable. it says cannot convert from double to CWnd*
thanks,
balaji
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You have at least 3 possibilities:
1. as someone already mentioned, use the auto-buddy feature (set that to true in the dialog editor for your spin button and make sure the spin comes right after the edit in tab order)
2. specify a control variable too for your edit button (CEdit) and pass that to SetBuddy
3. use GetDlgItem() to get a pointer for your edit control and feed that to the SetBuddy call (presuming you already have a CSPinButtonCtrl type member assigned to your spin control.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
modified on Monday, December 8, 2008 5:37 AM
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i have used GetDlgItem(ID name) and then what i have to pass in the SetBuddy function.
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Sorry, i got mixed up there, i thought you had the double for your spin button, not your edit, i will edit my previous post and then check it again.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Ok No problem,
i have created control variable for spin control already.
m_voltspin.SetRange(0,50);
i have memeber variable for edit box in that i have declared as double.
i have set true in the spin control properties
(Auto Buddy), problem is am not able to see the values in the dit box when i press up / down the spin control, it is updating somewhre.
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There's a spin button style called "Set buddy int" (UDS_SETBUDDYINT), make sure that is set for your spin button.
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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do u have any idea
Actually i have Rich text contol present in my dialog. I will get messages from the board, when the messages exceeds the size of the window, scroll bar automatically comes because of i had set the scroll bar(Vertical scroll bar) property of Rich Text Control.
My question is, when message exceeds the window size, the scroll bar automatically goes up. i don want scroll bar to move up rather it should go down, then only i can able to see latest updates form the board at time itself.
Thanks in advance,
Thanks,
Balaji
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Member 4651741 wrote: when i use up/down in the spin control. it is updating in somewhere.
Probably you have "Auto buddy" property set and your TAB order is not properly set.
As some one has already suggested you can set buddy window using SetBuddy member function of CSpinButtonCtrl class.
I hope it helps.
Regards,
Sandip.
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In the resource editor:
set the spin control's tab order immediately after the edit control
set the spin control's alignment property to Right (or Left)
check both the "Auto buddy" and "Set buddy integer" checkboxes
In the dialog's OnInitDialog() method, set the value via the edit control's SetWindowText() method.
"Love people and use things, not love things and use people." - Unknown
"The brick walls are there for a reason...to stop the people who don't want it badly enough." - Randy Pausch
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Hi
I m working on Pocket PC application using C++ (Win 32). and i want to load multiple image on other single bitmap image (treated as a container of images) . and the new images are the child of the single bitmap image. and these images must be treated as a single bitmap image. i m trying to do this using offScreenBuffer , CreateCompatibleBitmap of Win 32 C++.
Please suggest how i do this.
Thanx
Mitesh
~Khatri Mitesh
khatrimitesh@hotmail.com
Bikaner (Rajasthan)
INDIA
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Well, i haven't written any progs for PocketPC but as far as i know this mainly works the same way as it does on the desktop platform, so what you should do is to create 2 memory DCs, select your target bitmap (the one you want to put the others on) in the first one and then the other bitmaps you want to put on the first one one by one into the second one and use BitBlt. So something like:
HDC TargetDC, SourceDC;
TargetDC = CreateCompatibleDC(NULL);
SourceDC = CreateCompatibleDC(NULL);
HBITMAP OriginalTargetBitmap = SelectObject(TargetDC, TargetBitmap);
...
HBITMAP OriginalSourceBitmap = SelectObject(SourceDC, CurrentSourceBitmap);
BitBlt(TargetDC, X, Y, CurrBmpWidth, CurrBmpHeight, SourceDC, 0, 0, SRCCOPY);
SelectObject(SourceDC, OriginalSourceBitmap);
...
SelectObject(TargetDC, OriginalTargetBitmap);
DeleteDC(SourceDC);
DeleteDC(TargetDC);
> The problem with computers is that they do what you tell them to do and not what you want them to do. <
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Hi everybody,
I am trying to create dialogs in a loop.
I am having pointer to each dialog and resource id.
Problem is while creating an object of that dialog using new operator.
As new requires the typename which i am unable to provide in a loop.
Please refer the code below.
DlgA *pDlgA;
DlgB *pDlgB;
typedef struct tagDLG_INFO
{
CDialog *pDlg;
DWORD dwDlgID;
} DLG_INFO, *P_DLG_INFO;
DLG_INFO arrDlgInfo[2] =
{
{pDlgA, IDD_A},
{pDlgB, IDD_B}
};
for (DWORD dwLoopCount = 0; dwLoopCount < 2; ++dwLoopCount)
{
arrDlgInfo[dwLoopCount].pDlg = new XXX; //(How to provide typename in a loop).
arrDlgInfo[dwLoopCount].pDlg->Create(arrDlgInfo[dwLoopCount].dwDlgID, this);
}
I tried using macros, templates, RTTI, typeinfo,
but i did'nt find any proper solution.
Thanks in advance.
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If not needed to create a modaless dialog then better to call DoMadal function of CDialog class to create Modal Dialog.
Sushrut
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I am sorry that u didn't get the question.
what i want to do is similar to the following,
float *pf;
float *pf = new float; (This is the normal case where float is the typename passed to new operator).
(Now consider our problem)
int *pi;
char *pc;
If i have such many different types of pointers.
And i want to create memory to that respective pointer with it's respective type in loop.
So how am i able to provide typename to the new operator generically in a loop.
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skmk1247 wrote: arrDlgInfo[dwLoopCount].pDlg = new XXX; //(How to provide typename in a loop).
Does this work for you?
arrDlgInfo[dwLoopCount].pDlg = IDD_A == arrDlgInfo[dwLoopCount].dwDlgID ? new pDlgA(this):new pDlgB(this);
Could also check for NULL
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Your solution is good.
But i had given a sample of code.
What actually i want to do is to create around 20 dialogs of different types.
The resource i can have for this is the array of DLG_INFO.
For acheiving this we can extend or add more members to DLG_INFO.
Thanks.
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Yes that is confusing but it is usable.
I'll give you the scenario,
I need to write options/settings module for a product.
The product is dialog based.
Now the options will be in a tree control on the left side.
When user clicks a particular option i need to display appropriate dialog.
There a 20 such options.
To hide or show the respective dialog first they need to be created.
The question i posted doesn't relate to number of dialogs to be created.
Instead, in a loop how can we provide the typename for new operator.
Just refer the root post.
Thanks.
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Perhaps I fail to see what problem you are having. The solution I gave you will work for 2 dialogs or 20 dialogs if you modify it to a switch statement. In addition it should work for any CDialog derived class. What exactly is the problem you are having?
Here are some points:
1.) If your dialogs have a unique dialog resource ID associated with each CDialog derived class then you can easily identify which dialog belongs to which class.
2.) You can assign the CDialog pointer in your DLG_INFO structure to your derived class using the dynamic_cast operator[^] or the STATIC_DOWNCAST[^] macro.
3.) You can regain the type information by upcasting the CDialog pointer to access members.
Maybe I do not fully understand the problems you are having, if this is the case please clarify.
Best Wishes,
-David Delaune
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Your solution was actually very good and convincing.
But i was trying the same without using switch/if-else or any user defined function.
I feel that there may be any other means to achieve the problem.
If it is not feasible then i am really sorry for the question i posted.
Thanks.
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skmk1247 wrote: But i was trying the same without using switch/if-else or any user defined function.
I feel that there may be any other means to achieve the problem.
Yes, there are other ways to accomplish the same thing. You could probably also use a complicated template scheme to accomplish the same thing but why go through all that trouble? Are you attempting this for educational purpose?
Templated code easily produces code bloat if used incorrectly. If you add a template function in the middle of that for-loop it will likely generate much larger code than directly accessing the struct member and generating conditional jump instructions which jmp directly into the class constructor.
There is nothing to gain here by using templated code to create dialogs.
Best Wishes,
-David Delaune
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Yes you are right.
To do that task now i am sequentially writing those many statements for each dialogs.
I thought this task as challenging.
I continued with some research and tryouts.
You have suggested about templates, can you please help me out with a piece of code.
This is just educational.
I haven't stuck for this but I am trying to complete the task in any ways.
Though it is silly problem I have spend enough time for it.
I hope you understood the problem.
Thanks & Regards,
K. Sushilkumar.
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I've had a similar problem in the past.
I used the following article to solve it:
http://secure.codeproject.com/KB/cpp/enumleafclasses.aspx[^]
I created a common ancester for the dialogs
class CMyDialog : public CDialog
{
...
DECLARE_ROOT_CLASS (CMyDialog);
...
};
and then a bunch of inheriting dialogs:
class CMyDialog1 : public CMyDialog
{
...
DECLARE_LEAF_CLASS (CMyDialog);
...
}
Then I could add new child classes to my hearts content - and loop through and create them.
int n, nCount = CMyDialog::GetRegisteredManufacturingPlantCount ();
CBootStrapper<cmydialog> *pBS;
CMyDialog *pSub;
for (n = 0; n < nCount; n++)
{
pBS = CMyDialog::GetRegisteredManufacturingPlant (n);
pSub = pBS->CreateObject ();
....
}
</cmydialog>
You'll need to read the article for fine detail, but I've used the concept a few times, and it worked nicely for me.
I hope that helps,
Iain.
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Thank you.
It is a good solution.
Yes it could help me to some extent in my code.
Because the dialogs are already being implemented.
And i cannot change them from my side.
I can only create the dialogs.
As i discussed in earlier post that i was searching for some different technique instead of using if-else/switch for new operator.
But as part of education/knowledge the technique used is mind blowing.
Thanks & Regards,
K. Sushilkumar.
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