Rotating desktop

[Scott Turchin]

I've seen someone with code to rotate your pictures on your desktop -
I've got about 10 digital drawings from a guy that passed away, old aircraft pics, like to rotate them.....(Glenn Angus pics)...

If someone has a program that is reliable home-brewed or not a commercial spyware infested app I'd be highly interested!!!

Source would be good too.

Thanks,

[Fred Buffington]

I did a yahoo search for 'rotating desktop' and the first thing that came up was desktop jiggler. Though it doesnt appear to supply source code it is, i believe, freeware.

[Chris Holbrook]

...code to rotate pictures...

Another job for GDIplus.

[Paul Dixon]

Scott,
if it's only for 10 images then just open the folder with the pictures in and right click in the image. There is usually an option in that menu to rotate the image.

If that's not there, just open the image in Paint. Then rotate it using Image/Flip-Rotate.

Paul.

[Cliff Nichols]

I think in this case "Rotate" really means (Every so often, change my background), not "Rotate the angle of the picture"

[Conrad Hoffman]

I think the "Windows Picture & Fax Viewer" that comes with XP will do what you want. It's usually an option under OPEN when you right click. It will both rotate images by 90 degrees and rotate (slide show) through a series of images in a directory.

[Scott Turchin]

Yes rotate in and out of being my desktop picture - I can rotate a picture in paint shop pro or adobe photoshop

I thought there was a call to refresh desktop???

I know where WIndows stores the BMP it uses if you call from MSIE - replacing that picture and refreshing the desktop should do it...

[Cliff Nichols]

Scott,
Here is one that is VB and Icons, but the general concept should be the same
Create Desktop Shortcuts &
Refresh the Desktop

[Mel Bishop]

Since you are talking about changing the wallpaper, take a peek at my source code at: http://www.powerbasic.com/support/pb...ad.php?t=30746 . You should be able to modify it to suit your particulars.

However, you should be informed that changing the wall paper ever-so-often will cause the screen to flicker briefly. This may cause some distraction.

http://www.powerbasic.com/support/pbforums/showthread.php?t=30715

[Fred Buffington]

The ones I have seen change the page from left to right and/or top to bottom
without flicker like you can do with html.

[Scott Turchin]

And the winner is...
Mel -


Thanks- works like a champ, I just built an app that holds 10 pics, customizable timer, help-about, the works, in 1 hr...

I'll post a linkto this freeware app when I get home from Karate 2nite..

Function SwitchDeskTopImage(ByVal DeskTopImage As String) As Long
If IsFalse Exist(ByVal DeskTopImage) Then Exit Function
Function = SystemParametersInfo(%SPI_SETDESKWALLPAPER, 0, ByVal StrPtr(DeskTopImage),0)
End Function

[Mel Bishop]

Thanks. I look forward to getting my prize.

I would have posted earlier except I thought you were talking about physically rotating an image, much like a screen saver would do.

[Cliff Nichols]

Thanks. I look forward to getting my prize.

I would have posted earlier except I thought you were talking about physically rotating an image, much like a screen saver would do.

*LOL* I thought that was the case Mel, and if posted how I read the post would help

Too little time to investigate, and know full well that many of you PB'ers out there have from time to time investigated/answered/solutioned a similar concept and hoped someone would notice.

I look forward to what Scott posts as to what worked well for his application

[Scott Turchin]

Strange thing is, this code works at work but not at home.

Home is XP SP3 but work is SP2 I believe, might be SP3 now...

No go at home....if I right click REFRESH the desktop, works fine.

Function SwitchDeskTopImage(ByVal hWnd As Long,ByVal DeskTopImage As String) As Long
Local lResult   As Long
Local lRet      As Long
Local ErrType   As Long
Local zTmp      As Asciiz * %MAX_PATH

If IsFalse Exist(ByVal DeskTopImage) Then Exit Function

'Find out if screensaver is running:
lResult = SystemParametersInfo(%SPI_GETSCREENSAVERRUNNING,0,lRet,0)
If IsTrue lRet Then Exit Function 'No sense switching if screesaver is on.

'Set new image
'If the function succeeds, the return value is a nonzero value.
'If the function fails, the return value is zero.
lResult = SystemParametersInfo(%SPI_SETDESKWALLPAPER, 0, ByVal StrPtr(DeskTopImage),%TRUE)
If IsFalse lResult Then 'Function failed
    ErrType = GetLastError()
    MessageBox ByVal hWnd, GetLastErrorDescription(ErrType), ByVal VarPtr(CCSDesktop.szMine), ByVal %MB_ICONSTOP
End If
Function = lResult
End Function

[Scott Turchin]

Can I get someone to test this on an XP SP3 machine?

Or even SP2??

Works FLAWLESSLY on my XP machine at work, and flawlessly here on a Windows 2003 server.

I put a timer in for 1 minute and run this.

'==========================================================================================
Function SwitchDeskTopImage(ByVal hWnd As Long,ByVal DeskTopImage As String) As Long
Local lResult   As Long
Local lRet      As Long
Local ErrType   As Long
Local zTmp      As Asciiz * %MAX_PATH
Local iPathID   As Long
Local pvReserved As Long

If IsFalse Exist(ByVal DeskTopImage) Then Exit Function
'Find out if screensaver is running:
lResult = SystemParametersInfo(%SPI_GETSCREENSAVERRUNNING,0,lRet,0)
If IsTrue lRet Then Exit Function 'No sense switching if screesaver is on.

'Set new image
'If the function succeeds, the return value is a nonzero value.
'If the function fails, the return value is zero.
lResult = SystemParametersInfo(%SPI_SETDESKWALLPAPER, 0, ByVal StrPtr(DeskTopImage),0)
If IsFalse lResult Then 'Function failed
    ErrType = GetLastError()
    If ErrType <> %ERROR_SUCCESS Then MessageBox ByVal hWnd, GetLastErrorDescription(ErrType), ByVal VarPtr(CCSDesktop.szMine), ByVal %MB_ICONSTOP
    Exit Function
End If
'%SHCNF_PATH

CoInitializeEx pvReserved,%COINIT_APARTMENTTHREADED
lResult = SHGetDesktopFolder(iPathID)
If Not IsFalse lResult Then 'Function failed
    ErrType = GetLastError()
    If ErrType <> %ERROR_SUCCESS Then MessageBox ByVal hWnd, GetLastErrorDescription(ErrType), ByVal VarPtr(CCSDesktop.szMine), ByVal %MB_ICONSTOP
    Exit Function
End If

Call SHChangeNotify(%SHCNE_ALLEVENTS, %SHCNF_IDLIST, ByVal iPathID, ByVal lRet)
CoUninitialize
Function = lResult
'SHChangeNotify %SHCNE_ALLEVENTS, %SHCNF_FLUSH, ByVal 0, ByVal 0
'Call SHChangeNotify(%SHCNE_ALLEVENTS, %SHCNF_IDLIST, iPathID, lRet)
'Call CoTaskMemFree(iPathID)                  'free allocated memory
'Free bi
End Function