MantisBT - VTK
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ID	Project	Category	View Status	Date Submitted	Last Update
0014085	VTK	(No Category)	public	2013-05-23 11:21	2013-12-16 15:46

Reporter	Anton Poletaev
Assigned To
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	closed	Resolution	fixed
Platform		OS		OS Version
Product Version	5.10.1
Target Version		Fixed in Version	6.1.0
Project	Kitware
Type	incorrect functionality

Summary	0014085: OpenGL multisampling feature is not initialized properly for QVTK widget
Description	Hardware features for vtkWin32OpenGLRenderWindow are configured by "wglChoosePixelFormatARB". For this purpose a temporary window is silently created by SetupPixelFormat method, and a dummy OpenGL context is initialized. However, this method does not work properly for render window created for use with QVTKWidget. The problem is that the following snippet of code does not create temporary window as it is expected: ============================================================================== void vtkWin32OpenGLRenderWindow::SetupPixelFormat(HDC hDC, DWORD dwFlags, int debug, int bpp, int zbpp) { // Create a dummy window, needed for calling wglGetProcAddress. #ifdef UNICODE HWND tempId = CreateWindow(L"vtkOpenGL", 0, 0, 0, 0, 1, 1, 0, 0, this->ApplicationInstance, 0); #else HWND tempId = CreateWindow("vtkOpenGL", 0, 0, 0, 0, 1, 1, 0, 0, this->ApplicationInstance, 0); #endif ============================================================================= The reason is that the "vtkOpenGL" window class is not registered, and as a result -- the returned "tempId" identifier is NULL. Please have a look at the attached patch, that solves the problem.
Steps To Reproduce
Additional Information
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Attached Files	patch.diff (4,144) 2013-05-23 11:21 https://www.vtk.org/Bug/file/9457/patch.diff

Issue History
Date Modified	Username	Field	Change
2013-05-23 11:21	Anton Poletaev	New Issue
2013-05-23 11:21	Anton Poletaev	File Added: patch.diff
2013-05-23 12:25	Frederic TINGAUD	Note Added: 0030838
2013-05-23 13:16	Anton Poletaev	Note Added: 0030840
2013-05-23 17:35	Anton Poletaev	Note Edited: 0030840	bug_revision_view_page.php?bugnote_id=30840#r599
2013-12-16 15:46	Dave DeMarle	Note Added: 0031954
2013-12-16 15:46	Dave DeMarle	Status	backlog => closed
2013-12-16 15:46	Dave DeMarle	Resolution	open => fixed
2013-12-16 15:46	Dave DeMarle	Fixed in Version	=> 6.1.0

Notes