Windows ce设备应用程序开发 [英] windows ce device application development

问题描述

嗨...
这是pradeep

我正在为Windows ce设备(海豚6500)开发应用程序，该设备还带有摄像头.我想在我的应用程序中调用相机，我尝试使用"CameraCaptureDialog"，但它会引发错误，因为

Hi...
this is pradeep

I am developing application for windows ce device (dolphin 6500), the device has camera also. I want to invoke camera in my application, I try with "CameraCaptureDialog" but it raising error as

"Can't find an Entry Point 'SHCameraCapture' in a PInvoke DLL 'aygshell.dll'."

请帮帮我......


在此先感谢....

please help me......


Thanks in advance....

推荐答案

从以下内容开始:运行一些二进制转储实用程序，以查看真正导出的内容和名称.例如，使用

Start with the following: run some binary dump utility to see what''s really exported and under what names. For example, use

DUMPBIN.EXE \full-path-name-to\aygshell.dll > aygshell.dll.dump.txt

，您可以通过Visual Studio命令提示符来执行.

在[DllImport]属性中使用显式的EntryPoint参数.

然后可以修饰名称( http://en.wikipedia.org/wiki/Name_mangling [extern C".关于调用约定和签名，您可能需要通过文档甚至是一些猜测来了解它.

—SA

You can do it through Visual Studio Command Prompt.

Use explicit EntryPoint parameter in your [DllImport] attribute.

Then name could be decorated (http://en.wikipedia.org/wiki/Name_mangling[^]), you could misspell it, etc. This method is even useful if you write your own native DLL, especially with C++. This way, you can avoid pointless "extern C". As to the calling conventions and signature, you need to know it, possibly through documentation or even through some guesswork.

—SA

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