Hi
We have a WPF app and a 'dashcam' taking screen shots every 100 ms or so. Occasionally we get the exception :


TakePhoto Exception at frame 57:

System.ArgumentException: Parameter is not valid.
at System.Drawing.Bitmap..ctor(Int32 width, Int32 height, PixelFormat format)
at EO.WebBrowser.WebView.a(IntPtr A_0, Int32 A_1, Int32 A_2)
at EO.WebBrowser.WebView.b(IntPtr A_0, Int32 A_1, Int32 A_2)
at EO.WebBrowser.WebView.Capture(Rectangle srcRect, Size targetSize)
at EO.WebBrowser.WebView.Capture(Rectangle srcRect)
at EO.WebBrowser.WebView.Capture(Boolean excludeScrollBars)
at EO.WebBrowser.WebView.Capture()
at ScrapeLib.DashCam.TakePhoto(WebView webView)

We thought it was a startup issue, but turns out its not as its taken 57 frames successfully. Code is:


if (!webView.IsReady || !webView.IsCreated)
{
Trace.WriteLine($"No Photo IsReady={webView.IsReady} IsCreated={webView.IsCreated}");
return;
}
try
{
var pic = webView.Capture();


Trace Log:
first two frames get:

No Photo IsReady=False IsCreated=False
No Photo IsReady=False IsCreated=True

Is there anything else we can test for to avoid the exception?

Thanks

Justin

Thanks, I'll give that a try.