L_ConvertFromDDB

#include "l_bitmap.h"

L_LTDIS_API L_INT L_ConvertFromDDB(hDC, pBitmap, uStructSize, hBitmap, hPalette)

L_HDC hDC;

handle to the device responsible for the conversion

pBITMAPHANDLE pBitmap;

pointer to the target bitmap handle

L_UINT uStructSize;

size in bytes, of the structure pointed to by pBitmap

L_HBITMAP hBitmap;

handle to the DDB to be converted

L_HPALETTE hPalette;

handle to the palette

Converts a Windows device dependent bitmap (DDB) into a LEAD Technologies 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.

pBitmap

Pointer to the bitmap handle referencing the target LEAD bitmap.

uStructSize

Size in bytes, of the structure pointed to by pBitmap, for versioning. Use sizeof(BITMAPHANDLE).

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 LEAD bitmap.

Before calling this function, you must declare the LEAD bitmap handle and initialize it, specifying a height and width of 0. However, you should not allocate the bitmap. (If the bitmap is already allocated, you must free it and initialize the bitmap handle again.)

Required DLLs and Libraries

LTDIS

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

Platforms

Win32, x64.

See Also

Functions:

L_ConvertFromDIB, L_ConvertToDDB,

 

L_ConvertToDIB, L_ChangeFromDDB,

 

L_ChangeFromDIB, L_ChangeToDDB,

 

L_ChangeToDIB

Topics:

Raster Image Functions: Creation, Deletion, and Copying

 

Using DIBs, DDBs, and the Clipboard

Example

For a short example, refer to L_ConvertToDDB. For complete sample code, refer to the DIBDDB example.

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