Share memory throuth DLL

Related from: http://www.codeproject.com/useritems/Share_memory_throuth_DLL.asp

Generally, each application has its own data segment. This mearn they are independent where two applications use a dll together. But, sometimes, we want to know what other applications are doing. So we want used a shared memory. There are many ways to do so, use a shared DLL section is one of them.

Following is the simply step to create a shared memory.

1. Create a DLL project.

2. Create a segment named “.shared”, and create shared members at this section.

#pragma data_seg(".shared")

char theBuffer[1024] = "";

#pragma data_seg()

3. Define this section as shared. This is defined at TheDll.def file.

SECTIONS

.shared READ WRITE SHARED