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    <p>1: Mostly this is up to you and depends on the scale of the project. On something small it matters little, so keep it simple and have a single header. On larger projects it is best to reduce unnecessary interdependencies as much as possible - so put them in seperate files. You can alwasy create "all.h" which just includes the other things.</p> <p>2: Yes, if the DLL and the EXE are both linked to the multithreaded DLL CRT. Unless you know what you are doing, always use this as it is the safest and will do what you expect - it results in the exe and dll(s) being able to share the heap as if they were a single executable. You can "new Object()" in the dll and "delete obj" in the exe freely. NOTE: Mixing different versions of your EXE and your DLL can introduce incredibly subtle bugs (if, say, a class/struct definition changes), so don't do that.</p> <p>3: Every process has its own independent memory space (unless you specifically do certain things to try to get some shared memory). Processes are not allowed to get to memory of other processes.</p> <p>3.1: I <em>strongly</em> recommend you avoid global state. (Global static-const is OK). Global variables lead to many unexpected and difficult problems, and globals in Windows DLL have a number of additional complexities. It is far better in the long run for you to have explicit "Initialize/Deinitialze" functions in the DLL that the EXE must call.</p> <p>But, global statics in a dll are not much different than in an executable ... they get initialized in pretty much the same way when the DLL is loaded. (THings get more complicated when you dynamically load DLLs, but lets ignore that here).</p> <p>3.2: Yes, they would work with the single instance - but don't do it anyways, you will eventually regret it. Much better to make the initialization explicit because you cannot control the order in which global variables are constructed, and this can quickly lead to very difficult initialization problems.</p>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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