clsDIBSection Class

This class permits you to manage an API Device Context in a safe way and provides conversion functions for VB6.
Similar to the [clsMemDC] class but uses a DibSection instead of a Windows Bitmap for image management so it is possible
to create images with different resolutions. The [clsMemDC] class can only create images with the same resolution of the screen

Enums

Name	Description
eBppType	Bits per Pixel Type
eDibSectionBkMode	Background Mode

Events

Name	Description

Properties

Name	Type	Description
BitsPtr	(Long)	Returns the image bytes pointers of the internal image
BkColor	(Long)	Gets or sets the background color of the internal Device Context
BkMode	(eDibSectionBkMode)	Gets or sets the Background mode of the internal Device Context
bPP	(eBppType)	Returns the number of Bits per pixel of the internal image
BytesPerScanLine	(Long)	Returns the numbers of bytes used for storing a line of the internal bitmap (depends on the resolution) rounded to the next 4 bytes (used in many API functions)
Icon	(Picture)	Creates a standard Picture object from the internal image (in ICON format)
Palette	(clsPalette)	Returns the palette of the internal image
Picture	(Picture)	Creates a standard Picture object from the internal image (in Bitmap format)

Methods

Name	Type	Description
CloneFromDib		Clones another clsDIBSection class
CloneFromHBmp		Creates a DIB section from a bitmap handle, use PictureBox.Picture.Handle if you use VB6 controls
CloneFromHdc		Selects the image contained in the given Device Context and copies it to the new internal Device Context
CreateDC		Creates an image (DIB section) with a specified size (in pixels) and assign it to an internal Device context so you can easily use Windows drawing function on it
Destroy		Frees used resources, called automatically when the class terminates or a new value is assigned using [CloneFromDib], [CloneFromHBmp], [CloneFromHdc], [CreateDC]
DrawBackColor		Clear the internal image with a specified color
hDC	(Long)	Returns the handle of the internal Device Context
hDib	(Long)	Returns the handle of the internal DIB section object
Height	(Long)	Returns the height of the internal image (in pixels)
PaintPicture		Draws the internal image to the specified Device Context
ReleasehDib	(Long)	Returns the internal DIB Section handle and leave the user the responsability to Delete it ([clsCommonWrapper.DeleteObject]) when useless After this call internal references to this object are deleted
Width	(Long)	Returns the width of the internal image (in pixels)

Remarks

CloneFromHBmp Sample
In this sample we'll countour an image

Option Explicit

Private Sub Form_Click()

    Dim oDib As New clsDIBSection
    oDib.CloneFromHBmp Image1.Picture.Handle

    Dim oWrap As New clsCommonWrapper
    oWrap.DrawRectCoords oDib.Hdc, 0, 0, oDib.Width, oDib.Height, vbRed, False

    oDib.PaintPicture Me.Hdc

End Sub

CloneFromHdc Sample
In this sample we'll color our form in red

Option Explicit

Private Sub Form_Click()

    Dim oDib As New clsDIBSection
    oDib.CloneFromHdc Me.Hdc

    Dim oWrap As New clsCommonWrapper
    oWrap.DrawRectCoords oDib.Hdc, 0, 0, oDib.Width, oDib.Height, vbRed, True

    oDib.PaintPicture Me.Hdc

End Sub