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simplest way of sharing a single variable between programs

chunky_lover_23
Beginner
‎10-28-2008 05:59 AM
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I have two programs running indepedently (no parent/child relationships) simultaneously on the same machine.

Does anyone know the simplest way [without using a shared file] that I can change a variable in program 1 and have program 2 read the new value directly from memory.

Clearly SETENVQQ could work if the variable was only changed once and the 2nd program started after the first, but the variable is being continously changed in program 1.

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Steven_L_Intel1
Employee
‎10-28-2008 06:27 AM
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The simplest way is a DLL with a read-write section. See the provided sample DLL_Shared_Data for an example. The shared variable may be a module variable (my preference) or a COMMON.

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