L_SetPNGTRNS
#include "l_bitmap.h"
L_LTFIL_API L_INT L_SetPNGTRNS (pData, uSize)
L_UCHAR * pData; |
/* pointer to a buffer */ |
L_UINT uSize; |
/* size of the buffer pointed by pData */ |
Sets the transparency data used by LEADTOOLS when saving PNG files.
Parameter |
Description |
pData |
Pointer to a buffer that contains the transparency data to be used for saving PNG files. |
uSize |
Size in bytes, of the buffer pointed to by pData. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
This function supports 1-bit to 8-bit PNG images.
The values set by this function are valid for the current thread. To change the values used by the current thread, this function must be called again.
Required DLLs and Libraries
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. |
Platforms
Windows 2000 / XP/Vista, Windows CE.
See Also
Functions: |
L_GetPNGTRNS, L_SetBitmapAlpha, L_CreateMaskFromBitmapRgn, L_SetBitmapRgnFromMask |
Topics: |
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Example
// This example sets PNG transparency data
L_INT SetPNGTRNSExample(L_UCHAR * pData) { L_INT nRet; nRet = L_SetPNGTRNS( pData, 0xFF); return nRet; }