- 1 year ago
GetProcessImageFileNameA throwing ERROR_INVALID_PARAMETER
The GetProcessImageFileNameA
function from the Windows API is used to retrieve the path of the executable file associated with a specified process. If you're encountering an ERROR_INVALID_PARAMETER
error when calling GetProcessImageFileNameA
, it indicates that one or more parameters passed to the function are incorrect.
Here are a few possible reasons for the error:
Invalid Process Handle:
- Ensure that you are passing a valid process handle to the
GetProcessImageFileNameA
function. Make sure the process handle is obtained using the appropriate function, such asOpenProcess
, and that it is still valid at the time of callingGetProcessImageFileNameA
.
- Ensure that you are passing a valid process handle to the
Incorrect Buffer Size:
- Check that the buffer you are providing to store the process image filename is large enough to accommodate the full path.
- The
GetProcessImageFileNameA
function expects a buffer of at leastMAX_PATH
characters to hold the filename.
Insufficient Access Rights:
- Ensure that the process handle you pass to
GetProcessImageFileNameA
has the necessary access rights to retrieve the process image filename. - Depending on the process you are targeting, elevated/administrative privileges might be required to access certain process information.
- Ensure that the process handle you pass to
To help further diagnose the issue, it would be helpful to see the relevant code snippet where you are calling GetProcessImageFileNameA
. Make sure you are passing valid parameters, including the process handle and buffer size, and that the error is not due to any other preceding function calls.
Additionally, you can check the return value of GetProcessImageFileNameA
and use the GetLastError
function to retrieve the specific error code, which might provide additional information about the cause of the error.