Mergin images

[arunbalait]

Hi to all


Please give me code samples to merge two or more images into a single image using VB. Please send me immediately...

Thanx

[iburyak]

What do you mean merge images? Like picture of a dog to merge with a cat?
How program should decide what part of the image goes where?

Open paint and try to do it manually. It is tedious job even when you are looking at it.


Use Photoshop instead of VB.

[Killer42]

Please give me code samples to merge two or more images into a single image using VB. Please send me immediately...

I think you need to be more specific about what you mean by "merge" in this context. Are you talking about morphing, or what?

[arunbalait]

No not at all morphing....

Merging in the sense combinig two or more pictures into a single one...



If we are having more than one image files then after selecting those multiple images merging operation has to be done and the selected images would be saved as a single image...


For eg, We having images like several animals as different pictures If we selected those pictures and merge then those pictures must be merged as a single one like the output having group of animals...


Got it?

Thanx...


Is it possible?

[johnmartin]

No not at all morphing....

Merging in the sense combinig two or more pictures into a single one...



If we are having more than one image files then after selecting those multiple images merging operation has to be done and the selected images would be saved as a single image...


For eg, We having images like several animals as different pictures If we selected those pictures and merge then those pictures must be merged as a single one like the output having group of animals...


Got it?

Thanx...


Is it possible?

Here is the code you should check out.
I deserve no credit for this code, however it functions with the result I believe you are attempting to achieve.

In Control properties, browse for Picture 1 and assign it to picSource.
Now, browse for picture 2 and assign it to picDestination.

With These Controls In the frmMain Module.

barAmount (Slider)
Label1,Label2,L abel3,Label4
lblInfo
picDestination
picSource

'*****************************CODE IN FORM MODULE


' ********************************************
' ** Purpose: Alpha Blending Pictures
' ** Website : www.svenni.com
' ** Programmer : Sveinn R. Sigurdsson
' ** e-mail : depill2000@hotmail.com
' ********************************************
Option Explicit

' API DECLARATION [ ALPHA BLEND FUNCTION ]
Private Declare Function AlphaBlend Lib "msimg32" ( _
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 widthSrc As Long, _
ByVal heightSrc As Long, ByVal blendFunct As Long) As Boolean

' API DECLARATIONS [ COPY MEMORY FUNCTION ]
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" ( _
Destination As Any, Source As Any, ByVal Length As Long)

' TYPE STRUCTURES
Private Type typeBlendProperties
    tBlendOp As Byte
    tBlendOptions As Byte
    tBlendAmount As Byte
    tAlphaType As Byte
End Type

Private Sub barAmount_Scroll()
    ' Procedure Scope Declarations
    Dim tProperties As typeBlendProperties
    Dim lngBlend As Long
        ' Clear the destination picture
    picDestination.Cls
    tProperties.tBlendAmount = 255 - barAmount
    ' Call the 'CopyMemory' with the specified parameters
    CopyMemory lngBlend, tProperties, 4
    ' Blend the pictures together and show them at the specified
    ' location in the specified picture box.
    AlphaBlend picDestination.hDC, 0, 0, picSource.ScaleWidth, picSource.ScaleHeight, _
    picSource.hDC, 0, 0, picSource.ScaleWidth, picSource.ScaleHeight, lngBlend
    ' Refresh the picture box with the new image
    picDestination.Refresh
End Sub

Please resond if this is your intended goal or if an alternate goal is expected.
Good luck.

[johnmartin]

RE: My Last Reply : ALPHABLENDING

It is obvious that some controls are not needed, however I did not wish to hack apart another developers code for the example. The labels are not required and with a common dialog and proper code you can easily change the application to the user to select images during runtime. The AlphaBlending API was apparently shipped with Win98 and allows the user to set transparency level of a picture.
Good Luck, Again.