Comments by Avtem (Top 58 by date)

i've read again, there is no information about visual styles

As i mentioned in other comment - i am looking for an existing library that solves the problem entirely.
i could spent several days on developing such library, but it's not worth the effort and time

Sorry, my bad - i provided a bad example. i already fixed it.
Hopefully i'll find a library that can do equations

i apologize! i didn't notice that my example equation wasn't even solvable! i changed the example string to a solvable "62 = x * 1000"

Sorry, only now i realize that i should have mentioned that i am only looking for an existing library. i could implement this library, but it's not worth the effort and time.

So far i haven't found any code that solves the problem i am trying to solve.
Unfortunately googling for "solver C++" gave me results that don't mention equations with one unknown variable

"Your program should solve them exactly as you would do it yourself." - but to implement such a functionality probably will require hundreds lines of code - parsing numbers, signs, operator precedence and of course testing and error handling.
TinyExpr is only capable to solve one part of equation and it's already pretty large.
i feel like someone already created such a library, that's why i asked for help, because i haven't found one yet.

The style currently fits perfectly my needs. i think i will do what .Net probably did - just make a wrapper for a Combobox and handle it myself. Since i already wrapped a part of WinAPI in my own library, it will be handy to have a wrapper for combobox as well

My combobox has CBS_DROPDOWNLIST style. And remarks section of CBN_EDITCHANGE says "If the combo box has the CBS_DROPDOWNLIST style, this notification code is not sent."
Even if i could react to entering characters while combobox is focused, how do i retrieve the entered text?

Hm, unfortunately i don't see such notification: Combobox notifications
Also i just realized simply modifying WM_CHAR messages won't work because you have to keep track of the characters, reset it after a certain amount of time, etc.

Hm, so you would have to subclass the combobox windows procedure, catch all WM_CHAR messages and in there send messages CB_FINDSTRING to find out whether there any matching items and if there is, set the combobox index?

Thanks for the answer, but this is .Net, not WinAPI. i've read the link you provided and it doesn't have any WinAPI-related clues unfortunately.

Can you show your code for the SetTimer and TimerProc? If the types are the same, it shouldn't crash

Sorry, i think you misunderstood my post. i do not implement an IDE myself. It's about changing Visual Studio settings

What is a "form"?

Isn't Form designer a tool that is used to create code?

P.S. the topic is about IDE settings, there is no programming involved

Wow! i actually had a different problem: my icons were incredibly ugly if you disable the button. Enabling visual styles fixed that problem!

For those, who find difficult to understand cppreference i strongly recommend this site for learning C++: After i read the article i was knowing and understanding anything from this topic:
https://www.learncpp.com/cpp-tutorial/sharing-global-constants-across-multiple-files-using-inline-variables/

Anyway, i think what i will do is i copy the file to temporary path without spaces # and % and open it from that location.
i appreciate so much your help and i am happy that after such long time i know where is the problem!

Hm, with quotation marks:
HtmlHelpW(mainWnd, L"\"C:\\User guide.chm\"", HH_DISPLAY_TOPIC, 0);
it just does not open the file. GetLastError() returns 0 and the first file opens normally (it's not surounded with double quotes)

i added the code to the original question.
i think i found out why it fails and it seems to fail because of the path. To me it looks like it fails because of spaces in the path (i am aware of % and # which don't work with .chm)

Okay, i just finished writing the code in empty project and it worked! Unfortunately, my app is already finished and there's about 2-3 thousand lines of code, so i am afraid the bug is somewhere else...

The API is written in C, i use C++. Create call, i forgot that this function has more than 1 parameter... Adding the code!

But who is the process that generates the message? Is it some kind of a system process or is it the process that receives the message (for example WM_PAINT)?

Yes, before I create my Main window, it has size of 10, and inside my main loop... Well I found the problem - it was inside DLL and was caused because "myAppHWND" was not shared between all DLL's thus for my process it was correct, but for other processes it was always 0.
And still, I am not sure about main question: When I am inside hookProc(), and hookProc() catches a message from let's say Notepad.exe, is it inside Notepad.exe process or is it some other process?

I do not have a function in DLL to retrieve the size of the vector. I use size() member function of the std::vector directly - objects.size() inside my hookProc()

Sorry, I try to remove all irrelevant code when I ask questions. I will add more code

It's a shame. 1 picture is worth 1000 words

i am sorry, but for me it is really hard to understand what you wrote here. "The label tip has some standard amount of characters" - aren't labels truncated based on their width relative to column width?
"Your flag is to override that default behaviour" - What does it actually override? A lengthly text won't be truncated anymore?

But what if it does work and I just have an incompatible flag on my ListView? BTW i use LVS_REPORT

Yeah, i see it now!

Oh, someone's using that? That's interesting!

Well, it works perfectly.
Maybe i could not find the answer using Google because others understood it right away

Oh, there are more important things that i told them about, but they do not anything about it (Crashes in Visual Studio).

Anyway - did i understand how to use it properly?

Yep, it does seem to work, but i think i will stick with "intended" way to use it (if i understood it correctly).
Thank you!

Wow. i found how to do this by accident... Turns out if you want to handle combobox changes you have to handle CBN_EDITCHANGE which is not sent when user selects an item in the listbox and handle CBN_SELCHANGE, but not use WM_GETTEXT this time. They decided that programmer must retrieve Edit text by getting item in the listbox by index sent with CBN_SELCHANGE notification.

This is so confusing to me. Why just don't send CBN_EDITCHANGE for any change in the edit?

Thank you!

But that is my question - what is the right way to get data from the control?

The only way i could get the current text was:
1) Get Edit handle of the combobox
2) Subclass the edit control
3) Get text on WM_PAINT (WM_SETTEXT gives previous results as well...)

Thank you for your help! i'll try to put it in appropriate place!
@OriginalGriff yes, you are right i have never posted a Tip. Only asked questions

But that is the point of my question. i wanted to define the variable only once and use it in all files. But i like the way you propose to achieve result i need.

Thank you for pointing that out. Definitely something i have to work on)

Oh, it's interesting! i need to expand my knowledge about c++ in this direction)
Thank you very much for your answer!

All my windows are set to "Auto-hide". So when i press ESC, it focuses the text editor and hides all windows (if it does not contain a mouse cursor).
Basically what i want - press the ESC key and it focuses text editor and hides other windows

"You can define it in the Project Properties" Yes, i knew that, it is written in my original post. And the second way CPallini pointed out a few minutes ago. But thank you for your answer!

Oh, so i see now. Thank you for your answer.
Well, it's great that we can set UNICODE macro this way=)
The link was very useful as well!

Thank you for your answer! That's a great improvement to the code! i really like it.

Thank you for the answer! i will consider this solution for the future.

Yes, it's a bit strange to see such answer when it was all understood and fixed.

And i've just read that amount of GDI objects is limited, so it seems like my program was allowed to create only 9989 brushes =)
By the way, what it was deleting all the time? If it was deleting stock objects, then it should recreate them somehow...

Oh, that's it! i know that i have to release and delete everything with GDI, but i missed up those lines!
So, i fixed it like this:
"FillRgn(hdc, hrgnClip, hGlobalBrush);"
and of course the call "DeleteObject()" is no longer needed, but i do remember to delete "hGlobalBrush" at WM_DESTROY.

Thank you so much!

But it changes the arrays, you can see that in the screenshot