How to change desktop background using VC++

Question

I am currently trying to change my desktop background using SystemParametersInfo() vs doesnt give me any errors when I type my stuff in but when I run the program I get this

Answer 1

You need to add L to the file path. L"C:/Windows/Downloaded Program Files/Flowers.jpg" .

#include "stdafx.h"
#include <windows.h>

int main() {

    int return_value = SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, L"d:/flower1.jpg", SPIF_UPDATEINIFILE);

    return 0;
}

Answer 2

A better description of the error would definitely help more. For starters though, you should replace all of the forward slashes with double black slashes "\\".

SystemParametersInfo(SPI_SETDESKWALLPAPER, 0, "C:\\Windows\\Downloaded Program Files\\Flowers.jpg", SPIF_UPDATEINIFILE);

That looks right, however there's no telling what the actual cause of the error is without a little more information. Also a PDB file does not affect a program, that's for debugging a file.