Programmera "byt-bakgrund-i-windows"?

#include <windows.h>
#include <stdlib.h>
#include <stdio.h>
#include <iostream>

int main(){
	char* dir[] = {"Control Panel\\Desktop"};
	char* key[] = {"WallPaper"};
	char* wlp[] = {"C:\\2596.jpg"};
	HKEY keyHandle;
	char regValue[260];
	DWORD size = 259;
	DWORD type;

	printf("A small desktop image changer by Dalton Sleeper (XP)\n\n");

	// read
	if(RegOpenKeyEx(HKEY_CURRENT_USER, dir[0], 0, KEY_QUERY_VALUE, &keyHandle) == ERROR_SUCCESS){
		RegQueryValueEx(keyHandle, key[0], NULL, &type, (LPBYTE)regValue, &size);
		printf("Registry key: \"HKEY_CURRENT_USER\\%s\"\n\n%s: %s\n", dir[0], key[0], regValue);
	}
	else printf("The registry key could not be read!\n");
	RegCloseKey(keyHandle);

	// write
	if(RegOpenKeyEx(HKEY_CURRENT_USER, dir[0], 0, KEY_SET_VALUE, &keyHandle) == ERROR_SUCCESS){
		if (RegSetValueEx(keyHandle, key[0], 0, REG_SZ, (LPBYTE)wlp[0], strlen(wlp[0]) * sizeof(char)) == ERROR_SUCCESS){
			printf("\n\nRegistry key: \"HKEY_CURRENT_USER\\%s\"\n\n%s: %s\n", dir[0], key[0], wlp[0]);
		}
		else printf("The registry key could not be set!\n");
	}
	RegCloseKey(keyHandle);

	// refresh
	system("RUNDLL32.EXE user32.dll,UpdatePerUserSystemParameters");

	system("pause");
	return 0;
}

	#include <windows.h>
	#include <stdlib.h>
	#include <stdio.h>
	#include <iostream>

	char* image_1[] = {"c:\\2596.jpg"};
	char* image_2[] = {"c:\\2595.jpg"};
	char buffer[260];

	printf("Another small desktop image changer by Dalton Sleeper (Vista/Win7)\n\n");

	// get current wallpaper
	SystemParametersInfo(SPI_GETDESKWALLPAPER, sizeof(buffer), buffer, 0);

	// if the same, switch to the other one
	if(strcmp(buffer, *image_2) == 0)
		SystemParametersInfo(SPI_SETDESKWALLPAPER, sizeof(*image_1),
		*image_1, SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);
	else
		SystemParametersInfo(SPI_SETDESKWALLPAPER, sizeof(*image_2), 
		*image_2, SPIF_UPDATEINIFILE | SPIF_SENDCHANGE);

	// system("pause");
	return 0;