Read file at startup

Question

Read file at startup

ArielVW 1

I made an application to read files and the application runs normally. But the problem is when the computer is restarted this application can't read the file (I've entered the application path to registry HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run manually).

#define WIN32_LEAN_AND_MEAN   
#include <stdio.h>  
#include <windows.h>  
  
int main(void ) {  
   TCHAR config[MAX_PATH];  
   GetCurrentDirectory(MAX_PATH,config);  
   strcat(config,"\\test.txt");  
  
   FILE* fPtr = fopen(config, "r");  
    if (fPtr == NULL){  
        fclose(fPtr);  
        printf("File not exists");  
    } else {  
        fclose(fPtr);  
        printf("File exists");  
    }  
  
    getchar();  
  
   return 0;  
}

Tong Xu - MSFT 2,546 Reputation points Microsoft External Staff

2022-10-25T08:58:50.477+00:00
The above answer is indicative.
In addition, you may need to initialize the config. Like this:

TCHAR config[MAX_PATH]={0};

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Tong Xu - MSFT 2,546 Reputation points Microsoft External Staff

2022-10-25T08:58:50.477+00:00

The above answer is indicative.
In addition, you may need to initialize the config. Like this:

TCHAR config[MAX_PATH]={0};

Answer 1

Castorix31 90,686

Don't use GetCurrentDirectory
Use GetModuleFileName or other...

Answer 2

RLWA32 49,636

Use the fully qualified path to the file in your code. The current directory when the user logs on is probably not the same as when you run your tests.

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Read file at startup

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