Variable sharing between Modules in C

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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:

C

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

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:

C

HWND g_hMainWindow;

Posted 26-Mar-11 18:51pm

drkwlf

Updated 26-Mar-11 19:21pm

pankajupadhyay29

v2

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pankajupadhyay29 27-Mar-11 1:21am

Edited to add pre tag.

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వేంకటనారాయణ(venkatmakam) · Accepted Answer · 2011-03-26T19:55:00

Solution 1

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.

Posted 26-Mar-11 19:55pm

వేంకటనారాయణ(venkatmakam)

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drkwlf 27-Mar-11 5:27am

Your a genious I owe you one...