C中模块之间的变量共享 [英] Variable sharing between Modules in C

问题描述

我正在使用TheForgers的Win32教程作为WinAPI的起点...无论如何，我将源代码分解为模块以使其易于编写:

I am using TheForgers'' Win32 Tutorial as a starting point to the WinAPI... Anyways I broke the source down into modules to make it easier to write:

main.c          =    WinMain and Main Window Procedure
MDIChdProc.c    =    MDI Child Proc

我需要在这两个模块之间共享主窗口句柄的句柄，但是我不确定如何...任何帮助将不胜感激...

我需要分享的句柄是:

I need to share the handle of the Main Window Handle between these two modules but I am not really sure how... Any help would be greatly Appreciated...

The handle I need to share is:

HWND g_hMainWindow;

推荐答案

也许我们可以使用普通的外部变量.值，并在创建主窗口后更新它)作为main.c中的全局变量，并在MDIChdProc.h中将其声明为extern HWND g_hMainWindow;.

May be we can use normal extern variables.Defining HWND g_hMainWindow=NULL;(NULL value is inialisation value and it will be updated after the main window is created) as global variable in main.c and declaring it as extern HWND g_hMainWindow; in MDIChdProc.h.

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