Dev-c++ Wont Open
hey, this code I wrote wont work. The 2nd and 3rd buttons wont show up in the program.
are there any solutions?
Jan 05, 2004 I bought a book on OpenGL and I want a basic source to a OpenGL app that does nothing. I went into Dev-C, made a new OpenGL template project, copied everything and pasted it into VC. I saved it as a.c file. When I compile it works fine, but when I compile and run it says source file not compiled. So I googled buncha things and came across this video on youtube which shows you how to fix it. I also saw other forums on google which suggest the same thing. However, after doing whats asked, Now I can't even compile my code. May 08, 2010 why won't my program open my file? And im pretty sure you have to define the marks. A C program wont look at a wall of text and pick out the grades. Jun 11, 2017 c. Can't open it in window. Welcome to SoloLearn forum! How do I publish a website? What's outputs of code Need help getting my photo centered. I am in confusion on Class and Id attribute. My button code wont work, DEV-C Home. Programming Forum Software Development Forum Discussion / Question thecoolman5 8 Posting Whiz in Training 9 Years Ago. Hey, this code I wrote wont work. The 2nd and 3rd buttons wont show up in the program. #include /. Declare Windows procedure./ LRESULT CALLBACK WindowProcedure (HWND, UINT. Apr 22, 2011 Whenever I run this code, I always get couldn't open it.I have a file called Data.txt but the program doesn't take the input from it and display it on the screen like it's suppose to!
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WolfPack491
are there any solutions?
Without knowing what you want to do, we can't give any.
Learn to properly format the question.
- Remove unnecessary code (Code that is not relevant to the problem you are having). For example, the MessageBox calls with 6 to 7 lines of useless text is not relevant to the problem you are having. It just takes up screen space and makes it difficult for us to locate the problematic code. If you really want the Message boxes, at least use shorter strings.
- Make the indents consistent. There seems to be 4, 8 and maybe 16 space indents, and makes it difficult for us to read the code. Either use the
preview
functionality and see if the code looks good before posting, or use the edit functionality to edit it if it doesn't look good after posting. I would recommend using 4 SPACES instead of the TAB character to indent. - Give us more information. I can see a some problems in your code.
WM_CREATE
is handled multiple times. So only the one at the top is called and the code that handles theWM_CREATE
s below it, which are the ones supposed to create the other 2 buttons, are not called. Why do you handle the same message in various parts of the code? I can't judge if it is by mistake or not because you haven't said WHEN you want the buttons to be displayed. If you want to make the buttons appear at startup, try the following. Same goes for theWM_COMMAND
s too. No need to handle the same message in seperate switch cases.
What is Dev-C++?
Dev-C++, developed by Bloodshed Software, is a fully featured graphical IDE (Integrated Development Environment), which is able to create Windows or console-based C/C++ programs using the MinGW compiler system. MinGW (Minimalist GNU* for Windows) uses GCC (the GNU g++ compiler collection), which is essentially the same compiler system that is in Cygwin (the unix environment program for Windows) and most versions of Linux. There are, however, differences between Cygwin and MinGW; link to Differences between Cygwin and MinGW for more information.
Bloodshed!?
I'll be the first to say that the name Bloodshed won't give you warm and fuzzies, but I think it's best if the creator of Bloodshed explains:
There's also a reason why I keep the Bloodshed name. I don't want people to think Bloodshed is a company, because it isn't. I'm just doing this to help people.
Here is a good remark on the Bloodshed name I received from JohnS:
I assumed that this was a reference to the time and effort it requires of you to make these nice software programs, a la 'Blood, Sweat and Tears'.
Peace and freedom,
Dev-c Won't Open On Iphone
Colin Laplace
Getting Dev-C++
The author has released Dev-C++ as free software (under GPL) but also offers a CD for purchase which can contain all Bloodshed software (it's customizable), including Dev-C++ with all updates/patches.
Link to Bloodshed Dev-C++ for a list of Dev-C++ download sites.
You should let the installer put Dev-C++ in the default directory of C:Dev-Cpp, as it will make it easier to later install add-ons or upgrades.
Using Dev-C++
This section is probably why you are here.
All programming done for CSCI-2025 will require separate compilation projects (i.e. class header file(s), class implementation file(s) and a main/application/client/driver file). This process is relatively easy as long as you know what Dev-C++ requires to do this. In this page you will be given instructions using the Project menu choice. In another handout you will be given instructions on how to manually compile, link and execute C++ files at the command prompt of a command window. See here.
Step 1: Configure Dev-C++.
We need to modify one of the default settings to allow you to use the debugger with your programs.
- Go to the 'Tools' menu and select 'Compiler Options'.
- In the 'Settings' tab, click on 'Linker' in the left panel, and change 'Generate debugging information' to 'Yes':
- Click 'OK'.
Step 2: Create a new project.
A 'project' can be considered as a container that is used to store all the elements that are required to compile a program.
- Go to the 'File' menu and select 'New', 'Project..'.
- Choose 'Empty Project' and make sure 'C++ project' is selected.
Here you will also give your project a name. You can give your project any valid filename, but keep in mind that the name of your project will also be the name of your final executable. - Once you have entered a name for your project, click 'OK'.
- Dev-C++ will now ask you where to save your project.
Dev-c Won't Open Start
Step 3: Create/add source file(s).
You can add empty source files one of two ways:
- Go to the 'File' menu and select 'New Source File' (or just press CTRL+N) OR
- Go to the 'Project' menu and select 'New File'.
Note that Dev-C++ will not ask for a filename for any new source file until you attempt to:- Compile
- Save the project
- Save the source file
- Exit Dev-C++
- Go to the 'Project' menu and select 'Add to Project' OR
- Right-click on the project name in the left-hand panel and select 'Add to Project'.
EXAMPLE: Multiple source files In this example, more than 3 files are required to compile the program; The 'driver.cpp' file references 'Deque.h' (which requires 'Deque.cpp') and 'Deque.cpp' references 'Queue.h' (which requires 'Queue.cpp'). |
Step 4: Compile.
Once you have entered all of your source code, you are ready to compile.
- Go to the 'Execute' menu and select 'Compile' (or just press CTRL+F9).
It is likely that you will get some kind of compiler or linker error the first time you attempt to compile a project. Syntax errors will be displayed in the 'Compiler' tab at the bottom of the screen. You can double-click on any error to take you to the place in the source code where it occurred. The 'Linker' tab will flash if there are any linker errors. Linker errors are generally the result of syntax errors not allowing one of the files to compile.
Step 5: Execute.
You can now run your program.
- Go to the 'Execute' menu, choose 'Run'.
Disappearing windows
If you execute your program (with or without parameters), you may notice something peculiar; a console window will pop up, flash some text and disappear. The problem is that, if directly executed, console program windows close after the program exits. You can solve this problem one of two ways:
If you aim to have your opening track, and a couple more that you know you will play, you can fill a whole set round the rest of the playlist.Some useful tips and appsStart as you mean to go on. The way you organize and categorize your music will evolve as your collection grows and your tastes change, but the priority should always be ensuring everything is where you expect it, and no information is missing. This is especially important if you tend to use sync, but can also alter how ’s effects work. In the days leading up to your gig, start adding a few tracks to a playlist that you’d like to play, alternatively create a playlist for your gig in your Record Bags folder.Record Bags20180224VenueRight click the playlist and click “Select as Preparation List”, this way your Preparation List is more flexible and you will prepare directly for that gig. Usually, between half a dozen to a dozen tracks should be enough, and once the set starts to flow, you probably won’t even get through all of those.
- Method 1 - Adding one library call:
On the line before the main's return enter:system('Pause');
- Method 2 - Scaffolding:
Add the following code before any return statement in main() or any exit() or abort() statement (in any function):/* Scaffolding code for testing purposes */
This will give you a chance to view any output before the program terminates and the window closes.
cin.ignore(256, 'n');
cout << 'Press ENTER to continue..'<< endl;
cin.get();
/* End Scaffolding */ - Method 3 - Command-prompt:
Alternatively, instead of using Dev-C++ to invoke your program, you can just open an MS-DOS Prompt, go to the directory where your program was compiled (i.e. where you saved the project) and enter the program name (along with any parameters). The command-prompt window will not close when the program terminates.
For what it's worth, I use the command-line method.
Step 6: Debug.
When things aren't happening the way you planned, a source-level debugger can be a great tool in determining what really is going on. Dev-C++'s basic debugger functions are controlled via the 'Debug' tab at the bottom of the screen; more advanced functions are available in the 'Debug' menu.
Using the debugger:
The various features of the debugger are pretty obvious. Click the 'Run to cursor' icon to run your program and pause at the current source code cursor location; Click 'Next Step' to step through the code; Click 'Add Watch' to monitor variables.
Setting breakpoints is as easy as clicking in the black space next to the line in the source code.
See the Dev-C++ help topic 'Debugging Your Program' for more information.
Dev-C++ User F.A.Q.
Why do I keep getting errors about 'cout', 'cin', and 'endl' being undeclared?
It has to do with namespaces. You need to add the following line after the includes of your implementation (.cpp) files:
How do I use the C++ string class?
Again, it probably has to do with namespaces. First of all, make sure you '#include <string>' (not string.h). Next, make sure you add 'using namespace std;' after your includes.
Example:
Dev C++ Wont Open
That's it for now.I am not a Dev-C++ expert by any means (in fact, I do not teach C++ nor use it on a regular basis), but if you have any questions, feel free to email me at jaime@cs.uno.edu
Happy coding!