Dynamic GUI

[compman9902]

People, first of all thank you for reading my post.
I would like to start off by saying that I have read Prorgramming Windows and I have found no information that contributes to what I need to do.
Here is what I need help with. I need to make a windown with text in the middle of it that displays "Percent: %X" X being a intiger that I submit to the function that makes thew window.
Basicaly, a funtion that when I send a intiger to it, it opens up and then displays what is above. Then, it just dosn't close after it initially opens.
I really need help on this.
Thank you.

[weaknessforcats]

And you can't build a string containing your display and just use TextOut() ??

[Studlyami]

I'm not quite sure i fully understand the question. You need help closing the winodw? or creating the window? or centering the text?

[compman9902]

I'm not quite sure i fully understand the question. You need help closing the winodw? or creating the window? or centering the text?

All of the above
And then some

[kreagan]

All of the above
And then some

Would message pop up work for you?
MessageBox

[Studlyami]

Message box is nice and it provides and OK which will close it when clicked.

As for centering text here are the basic steps needed.


Get total window width and height (windowrect.rig ht - windowrect.left ; windowrect.bott om - windowrect.top)

divided total height and width by 2 (you want the center of the window).

Now we have the center of the window we need to subtract half the size of the string width and half of the string height.

Use GetTextExtentPo int32 and divide that number by 2 that will be your x,y value for drawing the font. You'll need to look up the parameters for GetTextExtentPo int32 i can never remember exactly how it works

[compman9902]

Message box is nice and it provides and OK which will close it when clicked.

As for centering text here are the basic steps needed.


Get total window width and height (windowrect.rig ht - windowrect.left ; windowrect.bott om - windowrect.top)

divided total height and width by 2 (you want the center of the window).

Now we have the center of the window we need to subtract half the size of the string width and half of the string height.

Use GetTextExtentPo int32 and divide that number by 2 that will be your x,y value for drawing the font. You'll need to look up the parameters for GetTextExtentPo int32 i can never remember exactly how it works

It would only work if the window would close automatically when a new number was submitted to the function and then opened up another with the submitted number.
Actually.
The above sounds perfect.
If you can, please post code.

[Studlyami]

Here is the basic way of centering the text on a given window. I was unable to get the dynamic window to work, but im sure a couple of the other people can help you out with that.

RECT TempRect;
GetWindowRect(hWnd, &TempRect);
LPCSTR myString = "This is the string to output";
SIZE StringSize;
GetTextExtentPoint32(GetDC(hWnd), (LPCTSTR) myString, 28, &StringSize);
int Textx = (TempRect.right - TempRect.left)/2 - (StringSize.cx/2);
int Texty =	(TempRect.bottom - TempRect.top)/2 - (StringSize.cy/2);
TextOut(GetDC(hWnd),Textx,Texty,myString,28);

That 28 is the number of chars in the string. I'm sure there is a way to get that dynamically, but im tired.

[compman9902]

Here is the basic way of centering the text on a given window. I was unable to get the dynamic window to work, but im sure a couple of the other people can help you out with that.

RECT TempRect;
GetWindowRect(hWnd, &TempRect);
LPCSTR myString = "This is the string to output";
SIZE StringSize;
GetTextExtentPoint32(GetDC(hWnd), (LPCTSTR) myString, 28, &StringSize);
int Textx = (TempRect.right - TempRect.left)/2 - (StringSize.cx/2);
int Texty =	(TempRect.bottom - TempRect.top)/2 - (StringSize.cy/2);
TextOut(GetDC(hWnd),Textx,Texty,myString,28);

That 28 is the number of chars in the string. I'm sure there is a way to get that dynamically, but im tired.

Thank yoyu very much..But, where do I put this to make the code work?

[Studlyami]

That would go after the new window is created. Instead of grabbing the rect for hWnd you would use the new window handle. If someone could help out with the dynamic window creation applying that code would make a lot more sense.

[compman9902]

That would go after the new window is created. Instead of grabbing the rect for hWnd you would use the new window handle. If someone could help out with the dynamic window creation applying that code would make a lot more sense.

Then it is agreed, I need help.
Anyone?

[compman9902]

And you can't build a string containing your display and just use TextOut() ??

Could you maybe write an example of how to use it? Becasue I have next to no experience with GUI in C++, so that would be great.

[compman9902]

Actually, I just thought of something. All I need is what goes under the "WM_PAINT" case and then I'll be golden.

[Studlyami]

So, you don't want a new window to be created then? If so, you don't want that code under the WM_PAINT.

[compman9902]

So, you don't want a new window to be created then? If so, you don't want that code under the WM_PAINT.

Oh, then I'm stuck. Any Tips? Anybody?
Also, just for future refrence, I was wondering what include to put in to the textout() function works. I'm using Dev-C++. Thanks.