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pass char string from dll to messagebox

 
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pass char string from dll to messagebox
AntiBNI
20 Jan, 2008 - 11:57 AM
Post #1

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I have a small question,i want to display a messagebox with text defined in a char string in a dll.

like so:
dll.cpp

CODE
__declspec(dllexport) void Links(char* test)
{
test="this is just a test";
}


dll.h
CODE

#include "windows.h"

__declspec(dllexport) void Links();


now the Dialog:

testDlg.cpp

CODE

#include "dll.h"

**all the code created automatically by MFC**

void CtestDlg::OnButton1()
{
Links();
//show text string from dll into the messagebox
MessageBox(test,"Test",MB_OK);
}


I want to show the char* text that i specified in the dll into the messagebox.

thanks,help will be appreciated.
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skaoth
RE: Pass Char String From Dll To Messagebox
21 Jan, 2008 - 01:18 PM
Post #2

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What you can do is use the LoadLibrary() and GetProcAddress() combination.

You may need to have the Kernel32.lib built with you program if it isn't
already being linked in.

Also be aware of the calling conventions (I can't remember what they are)
as c++ tends to mangle up names.
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