Method1 (using _getcwd function):
In the first method we are going to use the _getcwd function. In order to use this function we need to add its relevant header file called <direct.h>. This function gets an ABSOLUTE PATHNAME of a current working directory and returns a pointer to buffer. What I mean with Absolute Pathname is this:

C:\Program Files\Adobe

Here are some examples of NONE ABSOLUTE PATHNAME:

C:\Program Files\Adobe\
C:\Program Files\Adobe\Photoshop.exe

In the next method you will see that we don't get the ABSOLUTE PATHNAME but rather the full directory path that holds our
.exe file. Now Lets take a look at the _getcwd function and parameters that are passed to it.

char *_getcwd(char *buffer, int maxlen);

This function returns a pointer to buffer where it holds the location for the path. Maximum length is the size in bytes of the character array pointed to by the buffer argument.

Method2 (using GetModuleFileName):
In the second method, we are going to use the windows API function called GetModuleFileName and use STL String to tackle the character operations. You also need to add its relevant header file called <Windows.h> to use this function. Here is what you originally get when you use GetModuleFileName:

C:\Program Files\Adobe\Photoshop.exe

Now Lets take a look at the GetModuleFileName function and parameters that are passed to it:

DWORD WINAPI GetModuleFileName(HMODULE hModule,LPTSTR lpFilename,DWORD nSize);

hModule: A handle to the loaded module whose path is being requested. If this parameter is NULL, GetModuleFileName retrieves the path of the executable file of the current process.
lpFilename: A pointer to a buffer that receives the fully-qualified path of the module.
nSize: The size of the lpFilename buffer, in TCHARs.

Now If you call getMyAppPathMethod2() function, you will get an error:

error C2664: 'GetModuleFileName' : cannot convert parameter 2 from 'char [260]' to 'LPWCH'

There are many ways to fix this problem. But for now go to Project Properties(ALT+F7)>Configuration Prop>General>Character Set>change it from "Use Unicode Character Set" in this case to either "Not Set" or "Use Multi-Byte Character Set".