Question

GetModuleFileName() C语言问题

头文件是什么？？
该怎么取得程序路径？
用于修改注册表不知道该怎么做
求大虾帮助。

Answer 1

首先，这是一个Win32的API，必须使用Win32的编译器，用VC++还行，TC就算了。
然后，包含windows.h头文件，函数原型如下：
DWORD GetModuleFileName(
HMODULE hModule, // handle to module to find filename for
LPTSTR lpFilename, // pointer to buffer to receive module path
DWORD nSize // size of buffer, in characters
);

Parameters
hModule
Handle to the module whose executable filename is being requested. If this parameter is NULL, GetModuleFileName returns the path for the file used to create the calling process.
lpFilename
Pointer to a buffer that is filled in with the path and filename of the given module.
nSize
Specifies the length, in characters, of the lpFilename buffer. If the length of the path and filename exceeds this limit, the string is truncated.
Return Values
If the function succeeds, the return value is the length, in characters, of the string copied to the buffer.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Answer 2

#include "windows.h"

char path[512];
GetModuleFileName(NULL,path,512);
这样就取得当前运行程序的全路径了

Answer 3

头文件：WinBase.h

实例：

1 WCHAR path[MAX_PATH];
2 char chpath[MAX_PATH];
3
4 GetModuleFileName(NULL,path,sizeof(path));
5
6 wcstombs(chpath,path,MAX_PATH);
7 std::cout<<chpath<<std::endl;