C / C++ / MFC

1-Feb-07 4:46

Dear Sir,
My Object is to do some things automatically, without using a mouse.
I need when the focus is in my ComboBox control, to drop down directly this control to show me all item inside it.

What to do to drop down a Combox Box with codes without using mouse

toxcct1-Feb-07 4:52

1-Feb-07 4:52

can't the user do Alt+downArrow ?

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mikobi1-Feb-07 4:58

1-Feb-07 4:58

Thanks,
I don't need to use mouse or keys.

Programmatically what codes to write.
For example after writting this :
CFlatComboBox* cana = (CFlatComboBox*) GetDlgItem(IDC_analyse);
What to do sothat this control show all items inside it ?

toxcct1-Feb-07 4:58

1-Feb-07 4:58

then how does the Combo get the focus ? Confused | :confused:

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mikobi1-Feb-07 5:05

1-Feb-07 5:05

Thanks,
I suppose that I have before sent focus to that control writting this;
CWnd::PostMessage( WM_COMMAND, MAKELONG( IDC_analyse, BN_SETFOCUS ) );

toxcct1-Feb-07 5:07

1-Feb-07 5:07

ok. then i have a design question for you. why do you use a GUI if the user cannot interract with it ?

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mikobi1-Feb-07 5:35

1-Feb-07 5:35

I suppose that I am in my first control, when I lost focus there I write codes that you have seen. And when I arrive in my second control that is ComboBox, I prefere to show directly all items inside. That's my wish

toxcct1-Feb-07 5:38

1-Feb-07 5:38

...and how can the user select something in the comboBox List if he has no keyboard nor mouse ?

ps: you didn't answer my question, that was what is the need of having a graphical user interface if the user cannot interact on it ?!

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mikobi1-Feb-07 6:07

1-Feb-07 6:07

Dear Sir, I used Access 5 years, and in Access, I had done it (forms!article!Modifiable1.dropdown).
That why I think that. When the focus arrive in my ComboBox, it's possible to show directly all items inside it.

If It's not possible in this language, I accept it.

toxcct1-Feb-07 6:12

1-Feb-07 6:12

you still don't answer my question because you're blind with whqt you have in mind.

yes it is possible in C++ (thanksfully, you can do anything in C++) and the answer has already been given.

but my question is not that, and I wont repeat it thrice. reread it, understand it, and answer only then.

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David Crow1-Feb-07 7:00

David Crow

1-Feb-07 7:00

mikobi wrote:
When the focus arrive in my ComboBox, it's possible to show directly all items inside it.

Yes, but you're still going to need to use the mouse or keyboard to make a selection.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

Roger Stoltz1-Feb-07 5:57

1-Feb-07 5:57

Besides toxcct's questions you should keep in mind that the Windows GUI is an event driven thing. This means that everything that happens is a reaction of smoe kind of user input.
What seems to be puzzling us is that you want things to happen without such user input.
For instance, what triggers any control in your form to loose focus, or get focus for that matter? And then again like toxcct said, what's the point of dropping down a combo if the user's not supposed to select anything?

It seems like you haven't really thought this through, or you have to describe what you're trying to do further. But, judging from the level of expertise in your questions I would bet on the former. Suspicious | :suss:

N.B. the above is not meant to be offensive, just trying to help you helping yourself.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote

Rama Krishna Vavilala1-Feb-07 5:01

Rama Krishna Vavilala

1-Feb-07 5:01

mikobi wrote:
CFlatComboBox* cana = (CFlatComboBox*) GetDlgItem(IDC_analyse);

cana->ShowDropDown();

mikobi1-Feb-07 19:14

1-Feb-07 19:14

Thanks a lot Sir; Your are right.
ShowDropDown()
I test it; it's work very well.

Thanks all for your help.

Newbie009-Feb-07 8:22

Newbie00

9-Feb-07 8:22

VC ++ 2005

private: System::Void comboBox1_Enter(System::Object^ sender, System::EventArgs^ e) {
comboBox1->DroppedDown=true;
}

Enumerated types

Jay031-Feb-07 4:04

Jay03

1-Feb-07 4:04

Hey guys,
I was wondering if u can have a user defined type such as:

public enum Pizza { SMALL = 5.99, M = 7.99, L = 9.99 };

I am not quite sure if you can declare double variables inside the Pizza type?

I believe someone can help Confused | :confused:

Re: Enumerated types

Roger Stoltz1-Feb-07 4:10

1-Feb-07 4:10

Enum values are always integers.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote

Re: Enumerated types

toxcct1-Feb-07 4:12

To Click on an button programmatically

1-Feb-07 4:12

nope ; internally, enums are actually ints

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Re: Enumerated types

Jay031-Feb-07 4:33

Jay03

1-Feb-07 4:33

thanks for the ans boys

mikobi1-Feb-07 3:28

Re: To Click on an button programmatically [modified]

1-Feb-07 3:28

Dear Sir, my problem have not solution up to now.

For example; my button have IDC_Button identifier,

I want that if values on two edit controls are equals, automatically there is a click on my button to confirm the result.

What to do it ?

Roger Stoltz1-Feb-07 3:40

Re: To Click on an button programmatically

1-Feb-07 3:40

I guess the answers you got in your previous thread here[^] didn't help you.

mikobi wrote:
automatically there is a click on my button to confirm the result

What do you mean by "automatically"?
You have to write code that verifies that the contents of the two edit controls are the same.

If the ID of your button equals IDC_SHOW, then you could "simulate" a click on the button by sending or posting a WM_COMMAND message to the window that contains the button, like this:

PostMessage( WM_COMMAND, MAKELONG( IDC_SHOW, BN_CLICKED ) );

-- modified at 9:49 Thursday 1st February, 2007
Added code example.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote

mikobi1-Feb-07 4:09

Re: To Click on an button programmatically

1-Feb-07 4:09

Thanks for your reply, I wanted this code you send me.

I try it, it's work very well.

Thanks a lot

Roger Stoltz1-Feb-07 4:17

Re: To Click on an button programmatically

1-Feb-07 4:17

mikobi wrote:
I try it, it's work very well.

That's nice, but why do you think that you cannot simply call the message handler directly like you were suggested by baerten in your previous thread and by David below?
Is it a threading issue, another window or what?
As I understand it you would check the contents of your two edit controls in a call chain originating from EN_CHANGE event handler for the edit controls. The most intuitive solution would be to call the event handler for the BN_CLICKED event of your button.

My point is that it's unnecessary to cross the river in order to fetch water.

"It's supposed to be hard, otherwise anybody could do it!" - selfquote

mikobi1-Feb-07 4:29