LBitmapBase::GetColors
#include "ltwrappr.h"
virtual L_INT LBitmapBase::GetColors(nIndex, nCount, pPalette)
L_INT nIndex; |
/* the index of the first color to be retrieved */ |
L_INT nCount; |
/* the number of colors to retrieve*/ |
LPRGBQUAD pPalette; |
/* pointer to an array of RGBQUAD structures that make up your palette */ |
Loads your palette with selected colors of a class object's bitmap.
Parameter |
Description |
nIndex |
The index of the first color to be retrieved. |
nCount |
The number of colors to retrieve. |
pPalette |
Pointer to an array of RGBQUAD structures that will receive the colors. |
Returns
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Comments
Your palette can be smaller than the bitmap's palette, as long as it is big enough to hold the selected colors. For the reverse action, refer to LBitmapBase::PutColors.
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. |
See Also
Functions: |
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Topics: |
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Raster Image Functions: Working with Color Halftones, Halftones, and Grayscale Images |
Example
L_INT LBitmapBase__GetColorsExample() { L_INT nRet; LBitmapBase MyBitmap; RGBQUAD Colors[256]; MyBitmap.SetFileName(TEXT("C:\\Program Files\\LEAD Technologies, Inc\\LEADTOOLS 15.0\\Images\\image1.cmp")); nRet =MyBitmap.Load(8);//load at 8 bit per pixel if(nRet !=SUCCESS) return nRet; nRet =MyBitmap.GetColors(0, 255, Colors) ; if(nRet !=SUCCESS) return nRet; return SUCCESS; }