64bit

May 5, 2016 7 comments

Building the 64-bit version of Chromium Embedded Framework on Windows

The Chromium Embedded Framework (CEF for short) is an open source framework for embedding Chromium-based browsers in other applications. The base implementation is targeting C/C++ applications but ports for other languages exist (these include Java, C#, Delphi, Python). The nightly builds (for various systems and platforms) of CEF are available for download at https://cefbuilds.com/. These…

April 4, 2012 1 comment

Missing 64-bit compiler and tools

Let’s say you have this VC++ project (or maybe more) targeting a 64-bit platform (x64 or IA64). You have the sources, everything is set. You build the solution and your project is skipped. You try again, maybe do a rebuild. The project is still skipped. You check the solution’s configuration manager, and the project is…

October 19, 2011 0 comments

Accessing 64-bit Native COM Server From a Managed Client

Not long ago I ran into a COM interop problem that was a bit tricky to fix. So I’m sharing the problem and the solution here in case others encounter the same problem. I had this native in-proc COM server that initially was built only for x86. It was used in a native MFC application…

September 15, 2011 2 comments

Windows Runtime

Windows Runtime, or shortly WinRT, is a new runtime (siting on top of the Windows kernel) that allows developers to write Metro style applications for Windows 8, using a variety of languages including C/C++, C#, VB.NET or JavaScript/HTML5. Microsoft has started rolling out information about Windows 8 and the new runtime at BUILD. WinRT is…

July 27, 2011 1 comment

Typical error porting application from 32- to 64-bit

I recently ran across a bug with an application ported to the x64 platform. After debugging the application the error turned to be due to integrals layout and casting. I think this is a typical example worth mentioning. It starts with this definition:

#define COMBO_VALUE -99

1	#define COMBO_VALUE -99

which is used for a combo box with SetItemData:

pCombo->SetItemData(index, (DWORD)COMBO_VALUE);

1	pCombo->SetItemData(index, (DWORD)COMBO_VALUE);

Notice…

June 22, 2011 1 comment

Redefinition of ‘BOOKMARK’

If you include in a VC++ project <mapidefs.h> and <sqltypes.h> and build for the x64 platform you get a redefinition error.

#include <Windows.h>
#include <MAPIDefS.h>
#include <sqltypes.h>

int _tmain(int argc, _TCHAR* argv[])
{   
	return 0;
}

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#include <Windows.h>

#include <MAPIDefS.h>

#include <sqltypes.h>

int _tmain(int argc, _TCHAR* argv[])

{

return 0;

}

1>C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\sqltypes.h(283) : error C2371: ‘BOOKMARK’ : redefinition; different basic types 1> C:\Program Files\Microsoft SDKs\Windows\v6.0A\include\MAPIDefS.h(1142) : see declaration of ‘BOOKMARK’ The reason is that BOOKMARK is defined in both files. This is…

November 4, 2010 6 comments

32-bit and 64-bit COM Servers

It is possible to register both 32-bit and 64-bit versions of the same COM server on 64-bit machine. This leads to several questions such as how are they registered and which one of the two is used. I will try to answer them below. But first, let’s start with an example. Example Let’s say we…

October 17, 2010 1 comment

No more inline ASM in VC++ on x64

I’m working on a project to port a 32-bit application for the x64 platform. The first errors that came up when building for x64 were related to inline ASM code, which is no longer supported in VC++ for x64. VC++ has an inline assembler built within the compiler, so you could write assembly code directly…

October 5, 2010 6 comments

Defining x64 Target Platform for VC++ Projects

If you want to port an existing 32-bit application for the x64 platform (especially since 32-bit processors will soon be history), or if you want to target x64 for a new application, the first step in building for x64 is setting up your solution. In this post I will explain what are the steps in…