我怎么能不写WinMain函数使用一个Windows应用程序？ [英] How can I write a Windows application without using WinMain?

问题描述

写在C / C的Windows GUI应用程序++有'WinMain函数为切入点，（而不是'主'）。我对此的理解是，编译器生成一个'主'功能的C运行时调用。此'主'函数设置的图形用户界面所需的环境，并调用到'WinMain函数（指定实例句柄等）。

Windows GUI applications written in C/C++ have 'WinMain' as an entry point (rather than 'main'). My understanding of this is that the compiler generates a 'main' function to be called by the C Runtime. This 'main' function sets up the necessary environment for the GUI and calls into 'WinMain' (specifying the instance handles etc.).

总之，我相信控制台和GUI应用程序启动时通过以下方式有所不同：

In short, I believe console and GUI application startup to differ in the following way:

控制台应用程序：
C运行时 - >'主'功能（手工codeD）

Console application: C Runtime --> 'main' function (hand-coded)

GUI应用程序：
C运行时 - >'主'功能（编译器生成） - >的WinMain'功能（手工codeD）

GUI application: C Runtime --> 'main' function (compiler-generated) --> 'WinMain' function (hand-coded)

我想这两个验证这种理解和找出我怎么能手工code一个Windows图形用户界面只是一个'主'功能（即，而不必编写'WinMain函数'）

I would like to both validate this understanding and find out how I can hand-code a Windows GUI with just a 'main' function (i.e. without having to write 'WinMain').

推荐答案

您有一个不正确的认识。主WinMain函数之间的区别，除了一些differet初始化code，是传递给它的参数。

You have an incorrect understanding. The difference between main and WinMain, apart from some differet initialization code, is the parameters passed to it.

主要是这样的：

int main(int argc, char* argv[]);

虽然WinMain中是这样的：

While WinMain looks like this:

int WINAPI WinMain(HINSTANCE hInstance,
    HINSTANCE hPrevInstance,
    LPSTR lpCmdLine,
    int nCmdShow
);

事情已经设置这些参数，并拨打电话，这是启动code。当您编译和链接程序，链接器的参数之一就是切入点，这将是，取决于控制台或GUI应用程序，启动code不同的一点。

Something has to setup those parameters and make the call, and that's the startup code. When you compile and link a program, one of the linker parameters is the entry point, and that will be, depending on a console or GUI app, a different bit of startup code.

您当然可以写你自己的启动code，只要进入你的Visual C ++源代码目录，你可以找到启动code，这就是所谓的crt0.c，它是在VC \\ CRT \\ src目录。

You can certainly write your own startup code, just go into your visual c++ source directory and you can find the startup code, it's called crt0.c and it's in the VC\crt\src directory.

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