CURLOPT_PROGRESSDATA - Man Page
pointer passed to the progress callback
Synopsis
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROGRESSDATA, void *pointer);
Description
Pass a pointer that will be untouched by libcurl and passed as the first argument in the progress callback set with CURLOPT_PROGRESSFUNCTION(3).
Default
The default value of this parameter is NULL.
Protocols
All
Example
struct progress { char *private; size_t size; }; static size_t progress_callback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow) { struct memory *progress = (struct progress *)clientp; /* use the values */ return 0; /* all is good */ } struct progress data; /* pass struct to callback */ curl_easy_setopt(curl_handle, CURLOPT_PROGRESSDATA, &data); curl_easy_setopt(curl_handle, CURLOPT_PROGRESSFUNCTION, progress_callback);
Availability
Always
Return Value
Returns CURLE_OK
See Also
Referenced By
curl_easy_setopt(3), CURLOPT_PROGRESSFUNCTION(3), CURLOPT_XFERINFODATA(3), libcurl-tutorial(3).
February 07, 2023 libcurl 7.88.1 curl_easy_setopt options