References ▼
Determine whether the class object is valid for painting bitmaps.
#include "ltwrappr.h"
L_BOOL LDraw::IsValid()
| Value | Meaning |
|---|---|
| TRUE | The LDraw object is valid. |
| FALSE | The LDraw object is not valid. |
Before you can use any of the painting functions, a bitmap and a device context must be associated with the class object. Until you have associated a bitmap and a device context with the LDraw object, the object is considered invalid.
Win32, x64.
For an example, refer to LDraw::SetBitmap.
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