Canon EDSDK Tutorial in C# Introduction. The Canon EOS Digital SDK is a quite powerful SDK to remote control Canon DSLRs. Unfortunately it is quite difficult to find some good examples for it on the internet and the provided documentation is not very complete.
The Canon SDK requires the use of threads in a single threaded apartment (=STA) which makes things a bit difficult. Lucky for you, I added the STAThread class that handles the setup and issues that arise with this threading model. The CanonAPI class has one thread that is used for initializing and terminating the SDK and to get all SDK events. Each Camera instance has one thread that is used to execute all commands on. To ensure that nothing executes at the same time, all commands are surrounded by a lock (with the ExecLock field as lock object).
Should two commands execute at the same time, the SDK will hang completely in most cases. All methods provided by the CanonAPI and the Camera are safe to execute but if you want to call methods from the CanonSDK class you have to make sure to execute it on the right thread (by calling the Invoke method of the STAThread class). If you have any issues with the SDK hanging, please let me know. Using the GUI This project includes a Window Forms UI and a WPF UI. They both work the same way and are here to show you how to use the above code in an actual program. Note: These GUIs are not meant for production use and are merely here as an example to get you started! Plug in your camera and select in the list.
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Click on 'Open Session' and start to use the camera. Select the values in the dropdown menus to set them in the camera. Use the 'StartLV' Button to start the live view and the buttons with the arrows on it can be used to control the focus (only works if the lens is in AF mode and live view is running) Points of Interest This code was tested with:.
EOS 5D Mark III. EOS 7D. EOS 40D.
EOS 60D. EOS 700D. EOS 600D.
EOS 550D. EOS 500D.
EOS 450D. EOS 100D/Rebel SL1. EOS 1200D/Rebel T5.
EOS 1100D/Rebel T3. and several others If you tried it with a different model, please let me know so I can add it to this list. And if you have found a bug, have an improvement or a new snippet, I'm happy to hear from you!
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Member 13982286 16-Oct-18 17:24 16-Oct-18 17:24 EdsTerminateSDK throws an unhandled exception causing the app to hang. Can this be explained / debugged / fixed? Regards, Steve Schachter Edit: I am writing my application in C using dialog based MFC model. Normally I call EdsTerminateSDK only when the dialog is cancelled. A an experiment, I placed a call to EdsTerminateSDK directly after a call to EdsInitializeSDK in the dialog's InitInstance. Using Application Verify, the exception is identified in EdsTerminateSDK whether it's called from OnCancel button press or from a call directly after EdsInitializeSDK.
In the debugger, I can step out of EdsTerminateSDK, but in normal execution, the program hangs. Any way to tell if I've caused the problem? Edit: Windows 10 / VS 2017 / x64. Member 12835293 23-Aug-18 4:02 23-Aug-18 4:02 I'm trying to do custom white balance to a specific point, but I see the results only in live video with the command: Camera.SendCommand(CameraCommand.DoClickWBEvf, xyCoordinate).
Im choosing point while the White Balance configure on Manual, but the setting is not saved into the variable that stores the White balance values. When I am taking image, the white balance settings not saved.
How do I use it correctly to get a picture with the custom white balance settings? Thanks, Ilana. IshankaushikCM 1-Aug-18 7:33 1-Aug-18 7:33 Hello, I am trying to capture/Live view without a memory card. I am trying to work with following canon models - 1.
750D - T6i 2. 1300D - T6 While solution works fine with 750Dfor both 'Live View' and Capture but it fails for capture for modal 1300D. I keep getting error - takepicturecardng I understand this issue is with autofocusing of the lens, hence I have tried all modes with changing AF/MF also. Please let us know if this is a known issue or if there is a workaround. Member 13700951 21-Mar-18 1:33 21-Mar-18 1:33 I get this error when I start the live view in the GUI PInvokeStackImbalance occurred Message: Managed Debugging Assistant 'PInvokeStackImbalance' has detected a problem in 'C: Users OptoSys Desktop Neuer Ordner CanonSDKTutorial WinFormsUI bin Debug WinFormsUI.vshost.exe' Additional information: A call to PInvoke function ' EDSDKLib!EDSDKLib.EDSDK::EdsCreateMemoryStream' has unbalanced the stack.
This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature. I use the EOS 750D camera on Windows 10. Visual Studio 2015.NET Framework 4 Can someone help me to solve the Problem? Member 13711741 16-Mar-18 1:28 16-Mar-18 1:28 Hi, Thank you for the great tutorial! If my camera is connected to the PC before initializing the EDSDK, it won't show up in the Camera List until I turn the camera off and on again.
Is there any way to scan the ports for connected cameras when EDSDK is initialized? Best Regards. Last Visit: 24-Jan-19 20:04 Last Update: 24-Jan-19 20:05 1 General News Suggestion Question Bug Answer Joke Praise Rant Admin Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.