First, I am sorry for my bad English, I am French.
I tried to install the Gtk+ library with Code::Blocks, and I created a project just for try to use the stuff.
So, I used the method given at this page :
http://forums.codeblocks.org/index.php?topic=16468.0
And I put this test code in main.c :
#include <stdlib.h>
#include <gtk/gtk.h>
void OnDestroy(GtkWidget *pWidget, gpointer pData);
int main(int argc,char **argv)
{
GtkWidget *pWindow;
gtk_init(&argc,&argv);
pWindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_position(GTK_WINDOW(pWindow), GTK_WIN_POS_CENTER);
tk_window_set_default_size(GTK_WINDOW(pWindow), 320, 200);
gtk_window_set_title(GTK_WINDOW(pWindow), "Chapitre Fenetre");
g_signal_connect(G_OBJECT(pWindow), "destroy", G_CALLBACK(OnDestroy), NULL);
gtk_widget_show(pWindow);
gtk_main();
return EXIT_SUCCESS;
}
void OnDestroy(GtkWidget *pWidget, gpointer pData)
{
gtk_main_quit();
}
And I tried to build, but I get this error on the Code::Blocks build log:
Execution of 'mingw32-g++.exe -o "bin\Debug\Simulation POP.exe" obj\Debug\main.o -LC:/MinGW/lib -lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgio-2.0 -lpangowin32-1.0 -lgdi32 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lglib-2.0 -lintl' in 'C:\Users\Habib\Documents\Simulation POP' failed.
Please, have-you got an explanation ?
Thanks you.
In fact, I desinstalled Code::Blocks, Gtk+ and all of the other stuff, and I just restart like this :
(1) C:\Program Files\Code::Blocks\
(2) C:\Program Files\Code::Blocks\Gtk+\
Then, I put the path (2)\bin\ in the Variable Path Environnement.
I configured Code::Blocks without the tutorial, just with the bin, gtk+ and lib directory.
I executed the main.c Hello Word, and everything was good.
If anyone has the same problem, just send me a mail or ask the question in the same topic.
Related
I'm trying to compile a simple SDL program using Mingw w64. Here is my code:
test.c
#include "SDL2/SDL.h"
#include <stdio.h>
int main( int argc, char* args[] )
{
SDL_Window *window;
SDL_Init(SDL_INIT_VIDEO);
window = SDL_CreateWindow("SDL2 Window", 100, 100, 640, 480, 0);
if(window==NULL)
{
printf("Could not create window: %s\n", SDL_GetError());
return 1;
}
SDL_Delay(3000);
SDL_DestroyWindow(window);
SDL_Quit();
return 0;
}
and here is the command I'm using to compile the program:
g++ -o text.exe test.c -I./include -L./lib -lmingw32 -lSDL2main -lSDL2
but when I compile the program, I get hundreds of linking errors that look like this:
./lib/libSDL2.a(SDL_wasapi_win32.o): In function `WASAPI_PlatformInit':
/Users/valve/release/SDL/SDL2-2.0.22-source/foo-x64/../src/audio/wasapi/SDL_wasapi_win32.c:255: undefined reference to `__imp_CoCreateInstance'
I downloaded the library from the second link down in the windows development libraries section on the official SDL website, and took the libraries from the following directory:
SDL2-2.0.22\x86_64-w64-mingw32\lib
The contents of ./lib are:
libSDL2main.a
libSDL.a
What is the problem and how can I fix it?
You have two options, depending on your intent:
If you want to link SDL2 dynamically (this should be your default course of action), you need to add libSDL2.dll.a to your library directory. Then libSDL2.a will be ignored and can be removed. It should just work, no other changes are needed.
If you want to statically link SDL2, you need more linker flags. The exact flags are listed in sdl2.pc in the Libs.private section.
As of SDL 2.0.22, those are: -Wl,--dynamicbase -Wl,--nxcompat -Wl,--high-entropy-va -lm -ldinput8 -ldxguid -ldxerr8 -luser32 -lgdi32 -lwinmm -limm32 -lole32 -loleaut32 -lshell32 -lsetupapi -lversion -luuid.
Those should be added to the right of -lmingw32 -lSDL2main -lSDL2.
You also might want to add -static to statically link everything, including the standard library. (What's the point of statically linking SDL2, when your program still needs the DLLs of the standard library to work?) It also makes the linker prefer libSDL2.a to libSDL2.dll.a if both are available, meaning you don't need to worry what's in your library directory.
I am trying to use GTK3 and WebKitGTK. I am successful at running the following code :
#include <gtk/gtk.h>
#include <webkit2/webkit2.h>
#include <JavaScriptCore/JavaScript.h>
using namespace std;
static void destroyWindowCb(GtkWidget* widget, GtkWidget* window);
static gboolean closeWebViewCb(WebKitWebView* webView, GtkWidget* window);
int main(int argc, char* argv[])
{
// Initialize GTK+
gtk_init(&argc, &argv);
// Create an 800x600 window that will contain the browser instance
GtkWidget *main_window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size(GTK_WINDOW(main_window), 800, 600);
// Create a browser instance
WebKitWebView *webView = WEBKIT_WEB_VIEW(webkit_web_view_new());
// Put the browser area into the main window
gtk_container_add(GTK_CONTAINER(main_window), GTK_WIDGET(webView));
// Set up callbacks so that if either the main window or the browser instance is
// closed, the program will exit
g_signal_connect(main_window, "destroy", G_CALLBACK(destroyWindowCb), NULL);
g_signal_connect(webView, "close", G_CALLBACK(closeWebViewCb), main_window);
// Load a web page into the browser instance
webkit_web_view_load_uri(webView, "http://www.webkitgtk.org/");
// Make sure that when the browser area becomes visible, it will get mouse
// and keyboard events
gtk_widget_grab_focus(GTK_WIDGET(webView));
// Make sure the main window and all its contents are visible
gtk_widget_show_all(main_window);
// Run the main GTK+ event loop
gtk_main();
return 0;
}
static void
destroyWindowCb(GtkWidget* widget, GtkWidget* window)
{
gtk_main_quit();
}
static gboolean
closeWebViewCb(WebKitWebView* webView, GtkWidget* window)
{
gtk_widget_destroy(window);
return TRUE;
}
And the following cmake list :
cmake_minimum_required(VERSION 3.3)
project(HttpsMock)
# Use the package PkgConfig to detect GTK+ headers/library files
find_package(PkgConfig REQUIRED)
pkg_check_modules(GTK3 REQUIRED gtk+-3.0)
pkg_check_modules(WEBKIT REQUIRED webkitgtk-3.0)
# Setup CMake to use GTK+, tell the compiler where to look for headers
include_directories(${GTK3_INCLUDE_DIRS})
include_directories(${WEBKIT_INCLUDE_DIRS})
# and to the linker where to look for libraries
link_directories(${GTK3_LIBRARY_DIRS})
link_directories(${WEBKIT_LIBRARY_DIRS})
# Add other flags to the compiler
add_definitions(${GTK3_CFLAGS_OTHER})
add_definitions(${WEBKIT_CFLAGS_OTHER})
# Flags and source
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -v")
set(SOURCE_FILES main.cpp)
add_executable(HttpsMock ${SOURCE_FILES})
# Linking
target_link_libraries(HttpsMock ${GTK3_LIBRARIES})
target_link_libraries(HttpsMock ${WEBKIT_LIBRARIES})
But as soon as I try to use another method like :
WebKitURIRequest *request = webkit_uri_request_new("http://www.webkitgtk.org/");
The program doesn't want to link anymore. It's really weird. Here's a sample of the error :
[100%] Linking CXX executable HttpsMock
Apple LLVM version 7.0.0 (clang-700.0.72)
Target: x86_64-apple-darwin14.5.0
Thread model: posix
"/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld" -demangle -dynamic -arch x86_64 -macosx_version_min 10.10.0 -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk -o HttpsMock -L/opt/local/lib -search_paths_first -headerpad_max_install_names CMakeFiles/HttpsMock.dir/main.cpp.o -lwebkitgtk-3.0 -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpangoft2-1.0 -lpango-1.0 -lm -lfontconfig -lfreetype -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lsoup-2.4 -lgio-2.0 -lgobject-2.0 -ljavascriptcoregtk-3.0 -lglib-2.0 -lintl -rpath /opt/local/lib -lc++ -lSystem /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../lib/clang/7.0.0/lib/darwin/libclang_rt.osx.a
Undefined symbols for architecture x86_64:
"_webkit_uri_request_new", referenced from:
_main in main.cpp.o
ld: symbol(s) not found for architecture x86_64
I really have no clue of what is going on. Could someone please enlighten me?
Thanks
The problem is that I was using
pkg_check_modules(WEBKIT REQUIRED webkitgtk-3.0)
instead of
pkg_check_modules(WEBKIT REQUIRED webkit2gtk-3.0)
I'm trying to compile this code:
#include "SDL/SDL.h"
int main(void) {
SDL_Surface *Hello = NULL;
SDL_Surface *Screen = NULL;
SDL_Init( SDL_INIT_EVERYTHING );
return 0;
}
But it happens that the compiler says that:
undefined reference to SDL_Init
I dont know why this is happening. I'm using Debian Mint and Code::Blocks. Could you Help me?
It looks like you haven't got -lSDL on your link line.
sdl-config returns the compile and link flags for your installation of SDL.
Assuming the program is sdl.cpp
g++ -o sdl `sdl-config --cflags` sdl.cpp `sdl-config --libs`
Should give you the correct flags.
Go to project and then build options and select your project name.
Now go to the linker setting and type the following lines in the Other Linker options textbox:
-lSDLmain
-lSDL
SDL also requires command line arguments in the main function so you should change
int main(void)
to
int main(int argc, char **argv)
Now compile your project and it should work.
I have been trying to build cairo as a static library with support for cairo's experimental Qt features (I cannot use the official GTK binary releases). My Qt installation has no pkg-config within Mingw so I decided it would be easiest to cross-compile cairo on linux.
Using this cross compiler http://mingw-cross-env.nongnu.org/ and the commands:
./configure --prefix=/tmp/cairo --host=i686-pc-mingw32 --enable-qt
make
make install
I received an error generated by -Werror about implicit declaration of a function, however after modifying the makefile cairo builds correctly.
I copy the contents of /tmp/cairo to my MinGW installation under windows however when I try to compile a simple test program I receive the error when linking:
undefined reference to `cairo_qt_surface_create'
on the code:
QPainter p(viewport());
cairo_surface_t *surface = cairo_qt_surface_create(&p);
cairo_t *cr = cairo_create(surface);
I am using qmake for this test and included the following as extra library's:
-lcairo -lcairo-gobject -lpangocairo-1.0 -lpango-1.0 -lgobject-2.0
I am on with trying to compile a simple GTK+ Hello World app on windows. I am following a tutorial from this url:
http://pandhare0.tripod.com/#mini-Tutorial
The contents of my HelloWorld.c is as follows and also taken from a wikipedia example:
#include <gtk/gtk.h>
int main (int argc, char *argv[])
{
GtkWidget *window;
GtkWidget *label;
gtk_init (&argc, &argv);
/* create the main, top level, window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
/* give it the title */
gtk_window_set_title (GTK_WINDOW (window), "Hello World");
/* Connect the destroy signal of the window to gtk_main_quit
* When the window is about to be destroyed we get a notification and
* stop the main GTK+ loop
*/
g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
/* Create the "Hello, World" label */
label = gtk_label_new ("Hello, World");
/* and insert it into the main window */
gtk_container_add (GTK_CONTAINER (window), label);
/* make sure that everything, window and label, are visible */
gtk_widget_show_all (window);
/* start the main loop, and let it rest there until the application is closed */
gtk_main ();
return 0;
}
I have followed the instructions to generate the build bat file and the contents of which are below:
path C:\MinGW\bin;C:C:\gtk_2_22_x64\lib\%path%
gcc -Wall -g %1 -o %2 -mno-cygwin -mms-bitfields -IC:C:\gtk_2_22_x64\include\gtk-2.0 -IC:C:\gtk_2_22_x64\lib\gtk-2.0\include -IC:C:\gtk_2_22_x64\include\atk-1.0 -IC:C:\gtk_2_22_x64\include\cairo -IC:C:\gtk_2_22_x64\include\gdk-pixbuf-2.0 -IC:C:\gtk_2_22_x64\include\pango-1.0 -IC:C:\gtk_2_22_x64\include\glib-2.0 -IC:C:\gtk_2_22_x64\lib\glib-2.0\include -IC:C:\gtk_2_22_x64\include\pixman-1 -IC:C:\gtk_2_22_x64\include -IC:C:\gtk_2_22_x64\include\freetype2 -IC:C:\gtk_2_22_x64\include\libpng14 -LC:C:\gtk_2_22_x64\lib -lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgio-2.0 -lpangowin32-1.0 -lgdi32 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lglib-2.0 -lintl
%2
I have the MinGW inside my environment path. When I run the following command inside my command prompt:
gtkcmd.bat HelloWorld.c HelloWorld.exe
I get the following output:
C:\gtk+_compilation>gtkcmd.bat HelloWorld.c HelloWorld.exe
C:\gtk+_compilation>path C:\MinGW\bin;C:C:\gtk_2_22_x64\lib\C:\MinGW\bin;C:C:\gt
k_2_22_x64\lib\C:\MinGW\bin;C:C:\gtk_2_22_x64\lib\C:\MinGW\bin;C:C:\gtk_2_22_x64
\lib\C:\MinGW\bin;C:C:\gtk_2_22_x64\lib\C:\MinGW\bin;C:\gtk_2_22_x64\lib\C:\MinG
W\bin;C:\gtk_2_22_x64\lib\C:\Program Files\Common Files\Microsoft Shared\Windows
Live;C:\Program Files (x86)\Common Files\Microsoft Shared\Windows Live;C:\Windo
ws\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPower
Shell\v1.0\;C:\Program Files\Dell\Dell Wireless WLAN Card;c:\Program Files (x86)
\Common Files\Roxio Shared\10.0\DLLShared\;c:\Program Files (x86)\Common Files\R
oxio Shared\DLLShared\;C:\Program Files\TortoiseSVN\bin;c:\Program Files (x86)\M
icrosoft SQL Server\90\Tools\binn\;C:\Program Files (x86)\Windows Live\Shared;C:
\Program Files (x86)\IronPython 2.7;c:\Program Files (x86)\Microsoft ASP.NET\ASP
.NET Web Pages\v1.0\;C:\Program Files (x86)\GtkSharp\2.12\bin;C:\MinGW\bin;C:\gt
k_2_22_x64\bin;C:\gtk_2_22_x64\lib
C:\gtk+_compilation>gcc -Wall -g HelloWorld.c -o HelloWorld.exe -mno-cygwin -mms
-bitfields -IC:C:\gtk_2_22_x64\include\gtk-2.0 -IC:C:\gtk_2_22_x64\lib\gtk-2.0\i
nclude -IC:C:\gtk_2_22_x64\include\atk-1.0 -IC:C:\gtk_2_22_x64\include\cairo -IC
:C:\gtk_2_22_x64\include\gdk-pixbuf-2.0 -IC:C:\gtk_2_22_x64\include\pango-1.0 -I
C:C:\gtk_2_22_x64\include\glib-2.0 -IC:C:\gtk_2_22_x64\lib\glib-2.0\include -IC:
C:\gtk_2_22_x64\include\pixman-1 -IC:C:\gtk_2_22_x64\include -IC:C:\gtk_2_22_x64
\include\freetype2 -IC:C:\gtk_2_22_x64\include\libpng14 -LC:C:\gtk_2_22_x64\lib
-lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgio-2.0 -lpangowin32-1.0 -lgdi32 -lp
angocairo-1.0 -lgdk_pixbuf-2.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -
lgthread-2.0 -lglib-2.0 -lintl
HelloWorld.c:1:22: fatal error: gtk/gtk.h: No such file or directory
compilation terminated.
C:\gtk+_compilation>HelloWorld.exe
'HelloWorld.exe' is not recognized as an internal or external command,
operable program or batch file.
C:\gtk+_compilation>
Previously I had tried, strictly what the tutorial said, and used the / in the path statements as opposed to the full paths I now use. When I did use the / though it could not link anything. Every GTK statement returned an undefined error. So I have stayed with using the Full path in the header and linkers statements in the command line. As you can see from the above, it cannot find the gtk/gth.h header. This confuses me as I can clearly see the paths for such inside the command line arguments.
Any help is greatly appreciated.
Cheers,
Andrew
UPDATE:
Ok - I did screw up the bat file - daft mistakes but after correcting these inline with an answer below I now have the following bat file:
path \MinGW\bin;C:\gtk_2_22_x64\lib\%path%
gcc -Wall -g %1 -o %2 -mno-cygwin -mms-bitfields -IC:\gtk_2_22_x64\include\gtk-2.0 -IC:\gtk_2_22_x64\lib\gtk-2.0\include -IC:\gtk_2_22_x64\include\atk-1.0 -IC:\gtk_2_22_x64\include\cairo -IC:\gtk_2_22_x64\include\gdk-pixbuf-2.0 -IC:\gtk_2_22_x64\include\pango-1.0 -IC:\gtk_2_22_x64\include\glib-2.0 -IC:\gtk_2_22_x64\lib\glib-2.0\include -IC:\gtk_2_22_x64\include\pixman-1 -IC:\gtk_2_22_x64\include -IC:\gtk_2_22_x64\include\freetype2 -IC:\gtk_2_22_x64\include\libpng14 -LC:\gtk_2_22_x64\lib -lgtk-win32-2.0 -lgdk-win32-2.0 -latk-1.0 -lgio-2.0 -lpangowin32-1.0 -lgdi32 -lpangocairo-1.0 -lgdk_pixbuf-2.0 -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lgthread-2.0 -lglib-2.0 -lintl
%2
After this I now get the following errors from the compilation:
C:\Users\REA_AN~1\AppData\Local\Temp\cclrbtyP.o: In function `main':
C:\gtk+_compilation/HelloWorld.c:8: undefined reference to `gtk_init_abi_check'
C:\gtk+_compilation/HelloWorld.c:11: undefined reference to `gtk_window_new'
C:\gtk+_compilation/HelloWorld.c:14: undefined reference to `gtk_window_get_type
'
C:\gtk+_compilation/HelloWorld.c:14: undefined reference to `g_type_check_instan
ce_cast'
C:\gtk+_compilation/HelloWorld.c:14: undefined reference to `gtk_window_set_titl
e'
C:\gtk+_compilation/HelloWorld.c:20: undefined reference to `gtk_main_quit'
C:\gtk+_compilation/HelloWorld.c:20: undefined reference to `g_signal_connect_da
ta'
C:\gtk+_compilation/HelloWorld.c:23: undefined reference to `gtk_label_new'
C:\gtk+_compilation/HelloWorld.c:26: undefined reference to `gtk_container_get_t
ype'
C:\gtk+_compilation/HelloWorld.c:26: undefined reference to `g_type_check_instan
ce_cast'
C:\gtk+_compilation/HelloWorld.c:26: undefined reference to `gtk_container_add'
C:\gtk+_compilation/HelloWorld.c:29: undefined reference to `gtk_widget_show_all
'
C:\gtk+_compilation/HelloWorld.c:32: undefined reference to `gtk_main'
collect2: ld returned 1 exit status
It seems you folowed the instructions to create the .bat file incorrectly somehow - this:
-IC:C:\gtk_2_22_x64\include\gtk-2.0
should be:
-IC:\gtk_2_22_x64\include\gtk-2.0
and similar elsewhere. It looks like your path has got set up incorrectly - this:
path C:\MinGW\bin;C:C:\gtk_2_22_x64\lib\%path%
should be:
path C:\MinGW\bin;C:\gtk_2_22_x64\lib\%path%
or something like it (note C:C: should be C:).
Edit: And now your problem is that the linker cannot find the libraries. The batch file should contain stuff like:
-L/path/to/gtk/libraries
but I don't know how you specify that when you create the file.