DWORD,LPTSR,LPBYTE,HANDLE what do these terms mean?

Question

I came across these terms recently, while studying a program. I got an idea that they were data types...?

Are they really?

Could you please explain me what these terms really mean? I have not found their documentation.

Answer 1

I have not found there documentation

Here it is:

• Windows Data Types

All data types you mentioned are documented there. For your convenience:

• DWORD

  • A 32-bit unsigned integer. The range is 0 through 4294967295 decimal.
  • This type is declared in WinDef.h as follows: typedef unsigned long DWORD;

• HANDLE

  • A handle to an object.
  • This type is declared in WinNT.h as follows: typedef PVOID HANDLE;

• LPBYTE

  • A pointer to a BYTE.
  • This type is declared in WinDef.h as follows: typedef BYTE far *LPBYTE;

And there is nothing LPTSR. There is LPSTR, and LPTSTR however.

Answer 2

Assuming context of Windows development, they are simply data types. See Windows Data Types (from Microsoft).

Answer 3

These are most commonly encountered as Microsoft-specific typedefs.

For instance http://msdn.microsoft.com/en-us/library/cc230353(v=prot.10).aspx is an MSDN help page about LPSTR.