Enumerate files in directory with wildcard in C - c

Question

I use code like this to enumerate all shader files in subdirectory shaders:
HANDLE hFind;
WIN32_FIND_DATA FindFileData;
shader_counter = 1;
pclog("searching shader files \n");
hFind = FindFirstFile("shaders\\*.fx", &FindFileData);
if (hFind == INVALID_HANDLE_VALUE)
{
pclog("no shader files found \n");
}
else
{
pclog("shader files found \n");
while(hFind!=INVALID_HANDLE_VALUE)
{
pclog("Filename=%s\n",FindFileData.cFileName);
hFind = FindNextFile(hFind, &FindFileData);
shader_counter++;
}
pclog("Exit loop\n");
FindClose(hFind);
hFind = INVALID_HANDLE_VALUE;
}
But it only outputs 3 files out of many and crashes. What am I doing wrong ?
Edit , this is correct code to enumerate subdirectory using wildcard , maybe someone will find it usefull:
HANDLE hFind;
WIN32_FIND_DATA FindFileData;
BOOL found = TRUE;
hFind = FindFirstFile("shaders\\*.fx", &FindFileData);
if (hFind == INVALID_HANDLE_VALUE)
{ // directory/wildcard not found
}
else
{
while(found)
{
//printf("Filename=%s\n",FindFileData.cFileName);
found = FindNextFile(hFind, &FindFileData);
}
FindClose(hFind);
hFind = INVALID_HANDLE_VALUE;
}

Answer 1

According to the Microsoft documentation, the return value to FindNextFile is not the same as for FindFirstFile. FindNextFile returns a boolean value:
...
BOOL found = TRUE;
printf("shader files found \n");
while (found)
{
printf("Filename=%s\n",FindFileData.cFileName);
found = FindNextFile(hFind, &FindFileData);
shader_counter++;
}
printf("Exit loop\n");
FindClose(hFind);
...
(It has to be an independent value, otherwise you would pass an invalid handle to FindClose.)