LBitmapBase::ConvertFromDDB

#include "ltwrappr.h"

virtual L_INT LBitmapBase::ConvertFromDDB(hDC, hBitmap, hPalette)

HDC hDC;

/* handle to the device responsible for the conversion*/

HBITMAP hBitmap;

/* handle to the DDB to be converted*/

HPALETTE hPalette;

/* handle to the palette */

Converts a Windows device dependent bitmap (DDB) into an LBitmapBase objects bitmap. When this function is completed, there are two copies of the image in memory: the original DDB and the LEAD bitmap. Freeing one will not affect the other.

Parameter

Description

hDC

Handle to the device responsible for the conversion. The mapping mode of the device context must be MM_TEXT.

hBitmap

Handle to the DDB to be converted.

hPalette

Handle to the palette. This value can be NULL if the hDC parameter refers to a device that is greater than 8 bits, or if the bitmap will use the system palette.

Returns

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Comments

This function updates information in the bitmap handle and copies the DDB image data into the LBitmapBase objects bitmap.

Required DLLs and Libraries

LTDIS
LTFIL

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:

LBitmapBase::ConvertFromDIB, LBitmapBase::ConvertToDIB, Class Members

Topics:

Raster Image Functions: Creation, Deletion, and Copying

 

Using DIBs, DDBs, and the Clipboard

Example

For an example, refer to LBitmapBase::ConvertToDDB.