Gets the pixel count of the specified annotation object.
#include "l_bitmap.h"
L_LTANN_API L_INT L_AnnGetArea(hObject, puCount)
Handle to the annotation object from which to get the pixel count.
Address of the variable to be updated with the pixel count.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
The pixel count is the number of pixels contained in a region extracted from the annotation object, without resizing. It is equivalent to calling L_AnnGetRgnHandle with pRgnXForm set to NULL and then getting a pixel count of the resulting region.
Win32, x64.
L_INT EXT_CALLBACK AnnGetAreaAnnEnumCallback(HANNOBJECT hObject, L_VOID* pUserData);
L_INT AnnGetAreaExample(HANNOBJECT hContainer)
{
return L_AnnEnumerate(hContainer, AnnGetAreaAnnEnumCallback, NULL, ANNFLAG_RECURSE | ANNFLAG_SELECTED, NULL);
}
L_INT EXT_CALLBACK AnnGetAreaAnnEnumCallback(HANNOBJECT hObject, L_VOID* pUserData)
{
UNREFERENCED_PARAMETER(pUserData);
L_INT nRet;
L_SIZE_T zCount;
L_TCHAR cs[80];
nRet = L_AnnGetArea(hObject, &zCount);
if (nRet != SUCCESS)
{
wsprintf(cs, TEXT("Error # %d\n"), nRet);
_tprintf(_T("%s"), cs);
return nRet;
}
wsprintf(cs, TEXT("Pixel count = %lld\n"), zCount);
_tprintf(_T("%s"), cs);
return SUCCESS;
}
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
Your email has been sent to support! Someone should be in touch! If your matter is urgent please come back into chat.
Chat Hours:
Monday - Friday, 8:30am to 6pm ET
Thank you for your feedback!
Please fill out the form again to start a new chat.
All agents are currently offline.
Chat Hours:
Monday - Friday
8:30AM - 6PM EST
To contact us please fill out this form and we will contact you via email.