#include <windows.h>
const char* bgpath="temp";
void setExplorerBackground();
char* settings;
struct set
{
    int timeout;
    char* category;
    int init()
    {
        if(settings!= NULL)
        {
            category=(LPSTR)GlobalAlloc(GPTR, strlen(settings));
            timeout=atoi(settings[0]);
            for (int i=1; i<strlen(settings); i++)
            {
                category[i-1]=settings[i];
            }
        }
    }
};
set s;
BOOL LoadSettings() {
    HANDLE hFile;
    BOOL bSuccess = FALSE;

    hFile = CreateFile("settings.txt", GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, 0);
    if(hFile != INVALID_HANDLE_VALUE) {
        DWORD dwFileSize;
        dwFileSize = GetFileSize(hFile, NULL);
        if(dwFileSize != 0xFFFFFFFF) {
            settings = (LPSTR)GlobalAlloc(GPTR, dwFileSize + 1);
            if(settings != NULL) {
                DWORD dwRead;
                if(ReadFile(hFile, settings, dwFileSize, &dwRead, NULL)) {
                    settings[dwFileSize] = 0;
                    s.init() ;
                    bSuccess = TRUE; 
                }
            }
        }
        CloseHandle(hFile);
    }
    return bSuccess;
}
const char* baseurl="https://mydomain.com/stream/";
void DownWallpaper()
{
    
    char* fullurl=new char[strlen(baseurl)+strlen(s.category)+1];
    strcat(fullurl, baseurl);
    strcat(fullurl, s.category);
    URLDownloadToFile(0, fullurl, bgpath, 0, 0);
}
void Work()
{
    if(s.timeout>0) {
        while(1)
        {
            Sleep(s.timeout*60*1000);
            DownWallpaper();
            setExplorerBackground();
        }
    }
}
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) {
    Work();
}