#Change desktop picture screensaver how to#
#Change desktop picture screensaver update#
#Change desktop picture screensaver code#
#Change desktop picture screensaver mac#

#Change desktop picture screensaver how to#

Let me show you how to change wallpaper on Mac.

#Change desktop picture screensaver mac#

To make your Mac truly yours, you can customize the desktop background to your picture or the solid color you want.

#Change desktop picture screensaver code#

You could probably use code to switch Windows to picture display mode, but this example is intended to change the desktop picture not to reconfigure Windows.Though the default Mac background looks nice and changes dynamically depending on your location, it fails to give that personal touch. If youвЂ™re using one of those versions, manually make Windows display a picture and then the program should work. In some previous versions of Windows, the SystemParametersInfo function also only worked if the system was already displaying desktop pictures. In earlier versions of this example, the program loaded other types of files (such as GIF files), saved them into a temporary BMP file, and then displayed the temporary file. In some previous versions of Windows, the SystemParametersInfo function could only display BMP and JPG files.

In my tests the method seems to return true even if the file doesnвЂ™t exist. The documentation for SystemParametersInfo says the method returns true unless it fails, for example if the file doesnвЂ™t exist.

#Change desktop picture screensaver update#

The method sets the flags variable to indicate whether the function should update the Registry and then calls the function to display the new desktop picture. If the user checks the Update Registry checkbox, the program uses SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE for the final parameter so the change is permanent and you will see the new image if you log out or reboot. The final parameter to SystemParametersInfo indicates whether the function should modify the Registry to make the new picture permanent. The program uses the SystemParametersInfo API function to set the desktop picture. MessageBox.Show('Error displaying picture ' + MessageBox.Show('SystemParametersInfo failed.', If (!SystemParametersInfo(SPI_SETDESKWALLPAPER, Set the desktop background to this file. Private void DisplayPicture(string file_name, bool update_registry)ДЇlags = SPIF_UPDATEINIFILE | SPIF_SENDWININICHANGE The following DisplayPicture method sets the desktopвЂ™s picture. After you set the desktop picture manually, the program seems to work fine. That is necessary in earlier versions of windows and seems to be sometimes necessary in Windows 10. If the program doesnвЂ™t work, try setting the desktop picture manually and then run the program. Note that the program doesnвЂ™t seem to work if the systemвЂ™s desktop settings are in certain states. If you have only one monitor, it works much like Fill, although the picture is centered slightly differently.

Span вЂ“ This makes the picture span all of the systemвЂ™s monitors.

Center вЂ“ The picture is placed at its original size centered on the desktop.

Tile вЂ“ The picture is placed in the desktopвЂ™s upper left corner and then repeated to fill the desktop.

Stretch вЂ“ Stretches the picture so it fills the desktop.

Fit вЂ“ Scales the picture evenly until it is as big as possible while completely fitting on the desktop.Parts of the picture may extend off of the desktop. Fill вЂ“ Scales the picture evenly until it fills the desktop.Choose a picture either from the list or by browsing.Open the Background dropdown and select Picture.Right-click the desktop and select Personalize.

(I canвЂ™t guarantee that it will work without any changes in other versions of Windows.)Д®xactly how you set the desktop picture manually depends on your version of Windows. This example sets the Windows desktop picture much as you can manually in Windows 10.