The LEADTOOLS C++ Class Library is a wrapper to the LEADTOOLS C API and provides only a subset of the features and functionality otherwise available in the LEADTOOLS C API. For more information about the full feature set of the LEADTOOLS C API, refer to LEADTOOLS C API Introduction.
Is this page helpful?
Swaps the specified color channels.
#include "ltwrappr.h"
virtual L_INT LBitmap::SwapColors(uFlags = 0)
Flag that indicates which color channels to swap. Possible values are:
Value | Meaning |
---|---|
SWAP_RG | Swap the red and green channels. (Change red to green and green to red.) |
SWAP_RB | Swap the red and blue channels. (Change red to blue and blue to red.) |
SWAP_GB | Swap the green and blue channels. (Change green to blue and blue to green.) |
SWAP_RGBR | Change red to green, green to blue and blue to red. |
SWAP_RBGR | Change red to blue, blue to green and green to red. |
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
This function changes the data of the class object's bitmap.
This function can process the whole image or a region of the image.
This function supports 12 and 16-bit grayscale and 48 and 64-bit color images. Support for 12 and 16-bit grayscale and 48 and 64-bit color images is available only in the Document/Medical toolkits.
This function supports signed data images.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Swap Colors Function - Before
Swap Colors Function - After
View additional platform support for this Swap Colors function.
Win32, x64.
L_INT LBitmap__SwapColorsExample(LBitmap & Bitmap, L_TCHAR * szFileName)
{
L_INT nRet;
nRet =Bitmap.Load(szFileName);
if(nRet !=SUCCESS)
return nRet;
return Bitmap.SwapColors(SWAP_RB);
}
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document