L_PutPixelData

Summary

Changes the data of the specified pixel. No transformations are performed on the pixel data.

Syntax

#include "l_bitmap.h"

L_LTKRN_API L_INT L_PutPixelData(pBitmap, pData, nRow, nCol, uBytes)

Parameters

pBITMAPHANDLE pBitmap

Pointer to the bitmap handle referencing the bitmap.

L_VOID* pData

Pointer to a buffer that contains the pixel data to set. This buffer should be able to store uBytes bytes.

L_INT nRow

The row number of the pixel. This is a zero-based value.

L_INT nCol

The column number of the pixel. This is a zero-based value.

L_SIZE_T uBytes

Size of the buffer pointed to by pData. The size should be large enough to contain the data for the pixel. The minimum size can be calculated with the following formula: (pBitmap->BitsPerPixel + 7) / 8.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

The bitmap's memory must be locked when you use this function. Normally, call L_AccessBitmap to lock the memory before starting an operation that uses this function and then call L_ReleaseBitmap when the operation is finished.

This function should be called only for 8, 16, 24, 32, 48 and 64-bit bitmaps. For more information, refer to L_GetPixelData.

Required DLLs and Libraries

Platforms

Win32, x64, Linux.

See Also

Functions

Topics

Example

For an example, refer to L_GetPixelData.

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