winmain

问题 I've deleted the _tmain() method which the IDE generated because I find no sense having two entry points after adding my WinMain entry. And yes, this is my first ever C++ application and I am a newbie, but please be nice. So that's all I got: // Included headers: #include "stdafx.h" #include <iostream> #include <Windows.h> // Shortened namespaces: using namespace std; // The main entry of the application: int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int

问题 currently I am trying to make a windows application using c++. For compiling my program I use Mingw GCC. Btw I'm on Windows 10. But as soon as I use int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE, PWSTR pCmdLine, int nCmdShow) instead of int main() the compiler shows me following message: C:/mingw-w64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/libmingw32.a(lib64_libmingw32_a-crt0_c.o):crt0_c.c:(.text.startup+0x2e): undefined reference to

问题 In MFC, wWinMain is defined in appmodul.cpp . This file is built into mfc90ud.dll from what I can see. However, when I run my application, the call stack shows MyApplication.exe!wWinMain . How has it taken the wWinMain function that was exported in appmodul.obj and placed it in my application? 回答1: Right-click your project in the Solution Explorer window, Properties, Linker, Command Line. Type /verbose in the "Additional Options" box. Rebuild your project. The Output window now shows a trace

问题 I started using SDL today and had some trouble before, now I got it running but it won't let me init it. This is my code: #include <iostream> #include "SDL.h" #undef main using namespace std; int main(){ if(SDL_Init(SDL_INIT_EVERYTHING)<0){ cout << "error starting sdl" << endl; } return 0; } This the build log: -------------- Build: Debug in Graphics (compiler: GNU GCC Compiler)--------------- mingw32-g++.exe -Wall -g -std=c++11 -IC:\Users\73638G75MA\Documents\SDL2-2.0.3\x86_64-w64-mingw32

问题 So, I have a WINDOWCLASSX that I want to set the background to, including the alpha channel, but I only saw an "RGB" macro; no RGBA. So how do I set alpha on hbrBackground? Here is my code: WNDCLASSEX wincl; wincl.hInstance = hThisInstance; wincl.lpszClassName = szClassName; wincl.lpfnWndProc = WindowProcedure; wincl.style = CS_DBLCLKS; wincl.cbSize = sizeof (WNDCLASSEX); wincl.hIcon = LoadIcon (GetModuleHandle(0), MAKEINTRESOURCE(IDI_MYAPP)); wincl.hIconSm = LoadIcon (GetModuleHandle(0),

问题 This is part of a series of at least two closely related, but distinct questions. I hope I'm doing the right thing by asking them separately. I'm trying to get my Visual C++ 2008 app to work without the C Runtime Library. It's a Win32 GUI app without MFC or other fancy stuff, just plain Windows API. So I set Project Properties -> Configuration -> C/C++ -> Advanced -> Omit Default Library Names to Yes (compiler flag /Zl ) and rebuilt. Then the linker complains about an unresolved external

问题 I've been having a lot of trouble getting everything working so that I can start developing on Windows, as apposed to Linux, which is what I normally use when coding. I'm having a rather bizarre issue when trying to compile an SDL program. As soon as I include the SDL library, the program refuses to compile, giving me this error: c:/mingw/bin/../lib/gcc/mingw32/4.6.2/../../../libmingw32.a<main.o>: In function 'main': C:\MinGW\msys\1.0\src\mingwrt/../mingw/main.c:73: undefined reference to

问题 I've started to learn Win32 API in C. I saw that the main function is something like int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { .. } but I know that a function in C is like [ReturnType] [FunctionName] (Args) { .. } In this case the return type is int and the function name is WinMain. So what does the WINAPI stand for and is it necessary? Thank you . :) 回答1: It's specifying the calling convention, which is how arguments to functions are

问题 Could you please explain to me the WINAPI word in the WinMain() function? In the simplest way.. #include <windows.h> int -->WINAPI<-- WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { MessageBox(NULL, "Goodbye, cruel world!", "Note", MB_OK); return 0; } Is it just some Windows funky mode? What does it do? Or rather what is this C++ feature I haven't encountered yet? 回答1: WINAPI is a macro that evaluates to __stdcall, a Microsoft-specific keyword that

问题 I have read: undefined reference to `WinMain@16' & still don't understand my problem. I had a program that was working. Added a class but had not implemented it into the program yet just wrote the header and .cpp file. The program previous to just adding this class worked and now it doesn't. Error states... **file address....libmingw.32.a(main.o):main.c:(.text.startup+0xa7) Header file #ifndef DATE_H #define DATE_H #include <iostream> #include <string> class Date { public: Date(); //Setters