IKDibFromBitmap

This function converts a Device Dependent Bitmap to a Device Independent Bitmap.

[C++Builder/Visual C++] HANDLE IKDibFromBitmap(HBITMAP hBm, HPALETTE hPal);

[Delphi] function IKDibFromBitmap(hBm: HBitmap; hPal: HPalette): THandle;

[Visual Basic] Function IKDibFromBitmap(ByVal hBm As Long, ByVal hPal As Long) As Long

Parameters

Name	Explanation
hBm	The bitmap handle
hPal	The bitmap palette (0 if there is no palette)

Return Value

Returns the raster image handle if successful, otherwise returns 0 or NULL

Explanation

The IKBitmapFromDib function converts a Device Dependent Bitmap to a Device Independent Bitmap. If successful, the raster image handle will be returned. This function can be used to retrieve an image from C++Builder/Delhi TBitmap or VisualBasic PictureBox. Note: The hBm parameter is not freed after executing this function.

Delphi:

{Retrieve a raster image from TBitmap}

var

Bitmap1: TBitmap;

ImageHandle: THandle;

begin

Bitmap1 := TBitmap.Create;

try

Bitmap1.LoadFromFile('C:\Bmp\001.bmp');

{Image Processing 1}

ImageHandle := IKDibFromBitmap(Bitmap1.Handle, Bitmap1.Palette);

{Image Processing 2}

finally

Bitmap1.Free;

end;

Visual Basic:

' Retrieve a raster image from a PictureBox

Dim ImageHandle As Long

Set Picture1.Picture = LoadPicture("C:\Bmp\001.bmp")

' Image Processing 1

ImageHandle = IKDibFromBitmap(Picture1.Picture.Handle, Picture1.Picture.hPal)

' Image Processing 2