image

[apache77]

PLEASE HELP ME OR WRITE ME HOW CAN I SOLVE MY 3 QUESTIONS!!!

1) HOW CAN I SAVE THE SCREEN IMAGE,NOT ONLY THE WALLPAPER BUT ALL I CAN SEE ON MONITOR,ON A JPG FILE???

2) HOW CAN I CONVERT/SAVE A BMP FILE IN JPG WITHOUT ANY EXTERNAL OBJECTS OF VB???

3) HOW CAN I PUT AN IMAGE ON WINDOWS WALLPAPER???


HELP ME THANKS

[1 is a prime!]

If you want to print out what's on the screen, use the print screen key on the keyboard. If you want to do this in a program, just find the code that operates the print screen key. I'm not sure how to do this off hand, but the print screen key can be read using vbkeyprint in a keypress/keydown rountine. I think it saves the screen image to the clip board. Can you not access the clip board using VB?

Not much help, I know, but it's a start!?!

Steve.

[kedaman]

Heres for capturing the screen

'In declarations
Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal x As Long, ByVal y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long
'To use
    BitBlt hdc, 0, 0, Screen.Width / Screen.TwipsPerPixelX, Screen.Height / Screen.TwipsPerPixelY, GetDC(0), 0, 0, vbSrcCopy

Just set autoredraw to true before you do the capture, also if you don't want to have the form in the way, you can hide it while blitting and then show it again.

For saving in JPG, I have some code that does that, i could send you.

For putting an image on the walpaper, you could use a picturebox, use Setparent method to release it from your form:

'in declaraions:
Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long
'to use:
Setparent picture1.hwnd, 0
'to set it back on the form:
Setparent picture1.hwnd, form1.hwnd

A way for capturing the screen and saving it to a file:

Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, _
  ByVal dwFlags As Long, ByVal dwExtraInfo As Long)

Private Const VK_SNAPSHOT = &H2C


Public Function SaveScreen(ByVal theFile As String) As Boolean
On Error Resume Next

    'To get the Entire Screen
    Call keybd_event(vbKeySnapshot, 1, 0, 0)

    'To get the Active Window
    'Call keybd_event(vbKeySnapshot, 0, 0, 0)

    SavePicture Clipboard.GetData(vbCFBitmap), theFile

SaveScreen = True
Exit Function
End Function

Usage

Call SaveScreen("C:\Windows\Desktop\screen.bmp")

And then you can use the code (which is a great code) that kedaman is going to send you to make it a jpg file .

By the way,

Q3: HOW CAN I PUT AN IMAGE ON WINDOWS WALLPAPER???

Public Declare Function WritePrivateProfileString _
Lib "kernel32" Alias "WritePrivateProfileStringA" (ByVal _
lpApplicationName As String, ByVal lpKeyName As Any, ByVal _
lpString As Any, ByVal lpFileName As String) As Long

Public Sub WriteINI(strsection As String, strkey As String, strkeyvalue As String, strfullpath As String)
    Call WritePrivateProfileString(strsection$, UCase$(strkey$), strkeyvalue$, strfullpath$)
End Sub

Usage

Call WriteINI("Desktop", "Wallpaper", "C:\myimage.bmp", "C:\Windows\Win.ini")