wince下高级API调用Camer

最新推荐文章于 2017-11-08 18:31:00 发布

原创最新推荐文章于 2017-11-08 18:31:00 发布 · 770 阅读

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CC 4.0 BY-SA版权

文章标签：

#wince #api #dialog #image #null #user

本文介绍了一个使用SHCameraCapture API进行拍照的例子。代码展示了如何设置摄像头捕捉对话框的各种参数，如文件保存路径、默认文件名等，并通过switch语句处理了不同返回值的情况。

	 HRESULT         hReturn;
	 SHCAMERACAPTURE shcc;

	 //SetWindowPos(this,20,20,176,144,SWP_SHOWWINDOW);
	 ZeroMemory(&shcc, sizeof(shcc));
	 shcc.cbSize             = sizeof(shcc);
	 shcc.hwndOwner          = NULL;
	 shcc.pszInitialDir      = L"//Application Data//";
	 shcc.pszDefaultFileName = L"dd.jpg";
	 shcc.pszTitle           = L"dsfsdafdasf";
	 shcc.StillQuality       = CAMERACAPTURE_STILLQUALITY_DEFAULT ;
	 shcc.VideoTypes         = CAMERACAPTURE_VIDEOTYPE_ALL;
	 shcc.nResolutionWidth   = 176;//GetSystemMetrics(SM_CXSCREEN);
	 shcc.nResolutionHeight  = 144;//GetSystemMetrics(SM_CYICON);
	 shcc.nVideoTimeLimit    = 0;
	 shcc.Mode               = CAMERACAPTURE_MODE_STILL ;

	 hReturn = SHCameraCapture(&shcc);

	 switch (hReturn)
	 {
	 case S_OK:
		 // The method completed successfully
		 break;
	 case S_FALSE:
		 // The user canceled the Camera Capture dialog box.
		 break;
	 case E_INVALIDARG:
		 // An invalid argument was specified.
		 break;
	 case E_OUTOFMEMORY:
		 // There is not enough memory to save the image or video.
		 break;
	 default:
		 // An unknown error occurred.
		 break;
	 }
	return;