I want to use:
co_await winrt::resume_foreground(window.DispatcherQueue());
(Type of "window" is: "winrt::Microsoft::UI::Xaml::Window")
But I cannot compile it because
winrt::resume_foreground(Microsoft::System::DispatcherQueue const& dispatcher)
is not defined.
I cannot include #include <winrt/Microsoft.System.h> which contains the DispatcherQueue class.
My environment:
Windows 10 Pro, 21H1, 19043.1083
Visual Studio Community 2019 (16.10.3)
Visual Studio Extension: Project Reunion Version 0.8.0.46122163
Project Template: C++, Blank App, Packaged (WinUI 3 in Desktop)
To reproduce the error I used the Project Template above and added the following method to the "App" class.
App.xaml.h
winrt::Windows::Foundation::IAsyncAction foo();
App.xaml.cpp
winrt::Windows::Foundation::IAsyncAction App::foo()
{
co_await winrt::resume_foreground(window.DispatcherQueue());
}
I get the error message:
D:\Solution\WinUi3 Test\WinUi3 Test\App.xaml.cpp(50,21): error C2039: 'resume_foreground': is not a member of 'winrt'
1>D:\Solution\WinUi3 Test\WinUi3 Test\MainWindow.xaml.h(23): message : see declaration of 'winrt'
1>D:\Solution\WinUi3 Test\WinUi3 Test\App.xaml.cpp(50,38): error C3861: 'resume_foreground': identifier not found
1>Done building project "WinUi3 Test.vcxproj" -- FAILED.
If I try to include #include <winrt/Microsoft.System.h> I get:
1>D:\Solution\WinUi3 Test\WinUi3 Test\pch.h(25,10): fatal error C1083: Cannot open include file: 'winrt/Microsoft.System.h': No such file or directory
1>Done building project "WinUi3 Test.vcxproj" -- FAILED.
If I include #include <winrt/Windows.System.h> and #include <winrt/Windows.UI.Core.h> I get:
1>D:\Solution\WinUi3 Test\WinUi3 Test\App.xaml.cpp(50,63): error C2665: 'winrt::resume_foreground': none of the 2 overloads could convert all the argument types
1>D:\Solution\WinUi3 Test\WinUi3 Test\Generated Files\winrt\Windows.UI.Core.h(2805,31): message : could be 'winrt::resume_foreground::awaitable winrt::resume_foreground(const winrt::Windows::UI::Core::CoreDispatcher &,const winrt::Windows::UI::Core::CoreDispatcherPriority) noexcept' (compiling source file App.xaml.cpp)
1>D:\Solution\WinUi3 Test\WinUi3 Test\Generated Files\winrt\Windows.System.h(4529,31): message : or 'winrt::resume_foreground::awaitable winrt::resume_foreground(const winrt::Windows::System::DispatcherQueue &,const winrt::Windows::System::DispatcherQueuePriority) noexcept' (compiling source file App.xaml.cpp)
1>D:\Solution\WinUi3 Test\WinUi3 Test\App.xaml.cpp(50,63): message : while trying to match the argument list '(winrt::Microsoft::UI::Dispatching::DispatcherQueue)'
1>Done building project "WinUi3 Test.vcxproj" -- FAILED.
Include
#include <winrt/Microsoft.UI.Dispatching.h>
#include <Microsoft.UI.Dispatching.co_await.h>
When updating from 0.8.0 preview to 0.8.0 there was a namespace change from
Microsoft.System to Microsoft.UI.Dispatching and resume_foreground is now defined in Microsoft.UI.Dispatching.co_await.h.
The answer from Markus does not work for me in the WinUI3 1.0 release because the Microsoft.UI.Dispatching.co_await.h header file does not exist. However, the following does work:
#include <wil/cppwinrt.h>
#include <wil/cppwinrt_helpers.h>
co_await wil::resume_foreground(DispatcherQueue());
Related
I tried including secext.h winapi header in Kotlin/Native cinterop using Gradle:
build.gradle:
// ...
kotlin {
mingwX64("windows") {
compilations.main {
cinterops {
secext {
packageName 'me.[...].cinterop.secext'
includeDirs.allHeaders("src/nativeInterop/cinterop")
}
}
}
// ...
}
// ...
}
// ...
src/nativeInterop/cinterop/secext.def:
headers = secext_wrapper.h
headerFilter = secext.h
package = me.[...].cinterop.secext
src/nativeInterop/cinterop/secext_wrapper.h:
#pragma once
#include <windows.h>
#define SECURITY_WIN32
#include <security.h>
And IDE I use (IntelliJ Idea with the Kotlin plugin) does see the functions from secext.h and it does compile if I don't use any of them. When I try to use GetUserNameExA, though, this errors show up in :linkDebugSharedWindc:
> Task :linkDebugSharedWindows
Produced library API in gpio4k_api.h
e: C:\Users\Chilli\.konan\dependencies\msys2-mingw-w64-x86_64-clang-llvm-lld-compiler_rt-8.0.1/bin/clang++ invocation reported errors
The C:\Users\Chilli\.konan\dependencies\msys2-mingw-w64-x86_64-clang-llvm-lld-compiler_rt-8.0.1/bin/clang++ command returned non-zero exit code: 1.
output:
C:\Users\Chilli\.konan\dependencies\msys2-mingw-w64-x86_64-clang-llvm-lld-compiler_rt-8.0.1\bin\ld: C:\Users\Chilli\.konan\dependencies\msys2-mingw-w64-x86_64-clang-llvm-lld-compiler_rt-8.0.1\bin\ld: DWARF error: mangled line number section (bad file number)
[many identical lines here]
C:\Users\Chilli\.konan\dependencies\msys2-mingw-w64-x86_64-clang-llvm-lld-compiler_rt-8.0.1\bin\ld: DWARF error: mangled line number section (bad file number)
C:\Users\Chilli\AppData\Local\Temp\konan_temp8580678556601557020\result.o:out:(.text+0x7e4d1): undefined reference to `GetUserNameExA'
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
> Task :linkDebugSharedWindows FAILED
Execution failed for task ':linkDebugSharedWindows'.
> Compilation finished with errors
And I have literally no idea how to fix it.
I think, I may have improperly set up cmake wrong,(or improperly set up cmake for that matter) or I'm bad and rusty at C++ or both and possibly more. I just want to add a header and separate code into a class that loads images for opengl. I also put them in another directory parallel to other libraries in my linux file tree.
The main project folder has the main cmakelists.text file in it it's called "maficengine". Inside it are also a "build" file a "common" file and "external" file and a file called "Mafic", "maficGuiSourceFiles" file and one called "distrib." I think we can just focus on 2. "mafic" and "external". Inside mafic I have one called mafic.cpp which has my main function and is the entry point. Inside external, there is another folder called "myCustomHeaders".. therein lies a file called "loadTexture.cpp" It contains the loadTexture class declaration and definition. Also inside "myCustomHeaders" there is an "include" file which contains "loadTexture.h"... I cannot seem to instanciate an instance of LoadTexture lt; and call the function of loadtexture(); I expect it to at line 187 in mafic.cpp
#cmakelists.text file from main project folder
# CMake entry point
cmake_minimum_required (VERSION 3.0)
project (maficengine )
find_package(OpenGL REQUIRED)
add_library(loaders
external/myCustomHeaders/loadTexture.cpp
external/myCustomHeaders/include/loadTexture.h
)
set(SOURCES external/myCustomHeaders/loadTexture.cpp )
# Compile external dependencies
add_subdirectory (external)
# On Visual 2005 and above, this module can set the debug working directory
cmake_policy(SET CMP0026 OLD)
cmake_policy(SET CMP0079 NEW)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/external/rpavlik-cmake-modules-fe2273")
include(CreateLaunchers)
include(MSVCMultipleProcessCompile) # /MP
if(INCLUDE_DISTRIB)
add_subdirectory(distrib)
endif(INCLUDE_DISTRIB)
include_directories(
external/AntTweakBar-1.16/include/
external/glfw-3.1.2/include/
external/glm-0.9.7.1/
external/glew-1.13.0/include/
external/assimp-3.0.1270/include/
external/bullet-2.81-rev2613/src/
external/myCustomHeaders/include
common/
)
set(ALL_LIBS
${OPENGL_LIBRARY}
glfw
GLEW_1130
loaders
)
add_definitions(
-DTW_STATIC
-DTW_NO_LIB_PRAGMA
-DTW_NO_DIRECT3D
-DGLEW_STATIC
-D_CRT_SECURE_NO_WARNINGS
)
# Tutorial 17
add_executable(mageengine
Mafic/mafic.cpp
common/shader.cpp
common/shader.hpp
common/controls.cpp
common/controls.hpp
common/texture.cpp
common/texture.hpp
common/objloader.cpp
common/objloader.hpp
common/vboindexer.cpp
common/vboindexer.hpp
common/quaternion_utils.cpp
common/quaternion_utils.hpp
#Mafic/loadTexture.h
#Mafic/loadTexture.cpp
Mafic/StandardShading.vertexshader
Mafic/StandardShading.fragmentshader
)
target_link_libraries(mageengine
${ALL_LIBS}
ANTTWEAKBAR_116_OGLCORE_GLFW
loaders
)
here's mafic.cpp
#include <loadTexture.h>
int main( void )
{
loadTexture lt;
lt.loadtexture();
}
here's my loadTexture.cpp
class loadTexture
{
public:
loadTexture();
~loadTexture();
void loadtexture(){
fprintf(stdout, "loadtexture does something, that's a positive result for this test");
}
};
and finally my loadTexture.h
[code]
#pragma once
#include <GL/glew.h>
//GLuint image;
void loadtexture();
[/code]
Hoping it would build with no errors but I get ...
aaron#Zog:~/Desktop/maficengine/build$ make
[ 2%] Built target ANTTWEAKBAR_116_OGLCORE_GLFW
[ 2%] Built target GLEW_1130
[ 2%] Built target loaders
[ 6%] Built target glfw
[ 7%] Building CXX object CMakeFiles/mageengine.dir/Mafic/mafic.cpp.o
/home/aaron/Desktop/maficengine/Mafic/mafic.cpp:1:9: warning: #pragma once in main file
#pragma once
^~~~
/home/aaron/Desktop/maficengine/Mafic/mafic.cpp: In function ‘int main()’:
/home/aaron/Desktop/maficengine/Mafic/mafic.cpp:187:1: error: ‘loadTexture’ was not declared in this scope
loadTexture lt;
^~~~~~~~~~~
/home/aaron/Desktop/maficengine/Mafic/mafic.cpp:187:1: note: suggested alternative: ‘loadtexture’
loadTexture lt;
^~~~~~~~~~~
loadtexture
/home/aaron/Desktop/maficengine/Mafic/mafic.cpp:189:2: error: ‘lt’ was not declared in this scope
lt.loadtexture();
^~
CMakeFiles/mageengine.dir/build.make:62: recipe for target 'CMakeFiles/mageengine.dir/Mafic/mafic.cpp.o' failed
make[2]: *** [CMakeFiles/mageengine.dir/Mafic/mafic.cpp.o] Error 1
CMakeFiles/Makefile2:75: recipe for target 'CMakeFiles/mageengine.dir/all' failed
make[1]: *** [CMakeFiles/mageengine.dir/all] Error 2
Makefile:129: recipe for target 'all' failed
make: *** [all] Error 2
aaron#Zog:~/Desktop/maficengine/build$
I am writing a bluez C program to read battery service. I am using CMake for building the code.
My Cmake File is :
# CMakeLists file for module-bluez project
cmake_minimum_required(VERSION 3.02)
project (bluez-module)
find_package(PkgConfig REQUIRED)
# Adding dbus library
pkg_check_modules(DBUS REQUIRED dbus-1>= 1.6)
include_directories(${DBUS_INCLUDE_DIRS})
link_directories(${DBUS_LIBRARY_DIRS})
#Adding glib library
pkg_check_modules(GLIB REQUIRED glib-2.0>=2.23)
include_directories(${GLIB_INCLUDE_DIRS})
link_directories(${GLIB_LIBRARY_DIRS})
pkg_check_modules (DBUSGLIB REQUIRED dbus-glib-1)
include_directories(${DBUSGLIB_INCLUDE_DIRS})
link_directories(${DBUSGLIB_LIBRARY_DIRS})
# Adding bluetooth using extra libs
list(APPEND EXTRA_LIBS "bluetooth")
# Expose 'gattlib.h' to all sub-directories
include_directories(include)
add_executable(bluez-module scantest.c)
# Linking libraries
message(${DBUSGLIB_LIBRARIES})
target_link_libraries(bluez-module ${EXTRA_LIBS})
#target_link_libraries(bluez-module ${DBUS_LIBRARIES})
target_link_libraries(bluez-module ${DBUSGLIB_LIBRARIES})
target_link_libraries(bluez-module ${GLIB_LIBRARIES})
I have to use g_main_loop in my code. But after building the source file I always get the below error :
[ 50%] Linking C executable bluez-module
CMakeFiles/bluez-module.dir/scantest.c.o: In function `read_battery_service':
scantest.c:(.text+0x5b8): undefined reference to `g_dbus_setup_bus'
collect2: error: ld returned 1 exit status
My read_battery function code is as below :
int read_battery_service(struct hci_state *current_hci_state , char *dev_addr)
{
GError *error = NULL;
GDBusClient *client;
GOptionContext *context;
context = g_option_context_new(NULL);
main_loop = g_main_loop_new(NULL, FALSE);
dbus_conn = g_dbus_setup_bus(DBUS_BUS_SYSTEM, NULL, NULL);
return 0;
}
Just trying to initialize for to access dbus apis.
I have included these headers in the code
#include <assert.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <bluetooth/bluetooth.h>
#include <bluetooth/hci.h>
#include <bluetooth/hci_lib.h>
#include <stdio.h>
#include <gdbus.h>
#include <glib/gmain.h>
What would be the issue ? Is glib.h contains the function g_main_loop_new ? Where should I find it ? Or Is CMake not linking glib properly ?
Looks like you are missing the gdbus linker flags. Try using
pkg_check_modules (DBUSGLIB REQUIRED dbus-glib-1) and add
target_link_libraries(module-bluez ${DBUS_LIBRARIES} ${DBUSGLIB_LIBRARIES})
and see if it helps.
I have a program that has successfully compiled in the past, but now I get a bunch of errors.The source code is just:
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
int main()
{
int fd;
fd = creat("datafile.dat", S_IREAD | S_IWRITE);
if (fd == -1)
printf("Error in opening datafile.dat\n");
else
{
printf("datafile.dat opened for read/write access\n");
printf("datafile.dat is currently empty\n");
}
close(fd);
exit (0);
}
Now I get the errors:
cre.C:8:54: error: ‘creat’ was not declared in this scope
cre.C:16:17: error: ‘close’ was not declared in this scope
cre.C:17:16: error: ‘exit’ was not declared in this scope
Sometimes I get an error about gxx_personality_v0 instead, and sometimes I get no error at all! I've tried updating gcc, but the problem remains. What's going wrong?
OS UBUNTU 12.1 on vaio laptop
From your error messages I see that you called your file cre.C. gcc is case-sensitive for file names: try naming it cre.c and compiling it.
$ LANG=C cc -o foo foo.C
foo.C: In function 'int main()':
foo.C:8:54: error: 'creat' was not declared in this scope
foo.C:16:17: error: 'close' was not declared in this scope
foo.C:17:16: error: 'exit' was not declared in this scope
but
$ LANG=C cc -o foo foo.c
foo.c: In function 'main':
foo.c:17:9: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
As noted in a comment, a file with .C extension is handled by the C++ compiler, thus you are seeing those errors.
Read the man pages for the creat, close, and exit functions.
On my system, creat() requires:
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
close() requires:
#include <unistd.h>
and exit() requires:
#include <stdlib.h>
As for why the code was compiling before, it's hard to tell. Perhaps the compiler was being invoked in a more permissive mode that didn't complain about missing function declarations, or perhaps some of the headers you do include have #include directives for the headers you need.
i encounter an error like
Error 1 fatal error LNK1107: invalid or corrupt file: cannot read at 0x2C8 C:\Program Files\OpenCV\bin\highgui110.dll
Additional Include Directories
C:\Program Files\OpenCV\cxcore\include
C:\Program Files\OpenCV\otherlibs\highgui
C:\Program Files\OpenCV\cv\include
Additional Library Directories
C:\Program Files\OpenCV\otherlibs
C:\Program Files\OpenCV\lib
C:\Program Files\OpenCV\bin
Additional Dependencies
cv.lib
highgui.lib
cxcore.lib
highgui110.dll
Error Message is
Error 1 fatal error LNK1107: invalid or corrupt file: cannot read at 0x2C8 C:\Program Files\OpenCV\bin\highgui110.dll 1 OpenCV Capture
What wrong with highgui.dll ?
Please help.
Thanks.
This is my source code.
Code:
#ifndef CAM_CAPTURE_H
#define CAM_CAPTURE_H
#include "cv.h"
#include "highgui.h"
class CamCapture
{
private:
CvCapture* myCaptureHandler;
IplImage* videoFrame;
int key;
public:
CamCapture();
~CamCapture();
void Init();
};
#endif
Remove highgui110.dll from your list of Additional dependencies. In additional dependencies you should list only lib files.