Question

我希望有人可以帮我解决这个问题。

我有一个用VS2008，.NETCF 3.5，C＃编写的简单应用程序。该应用程序有一个表单和一个按钮。问题出现在支持摄像头的设备上（Motorola MC9590）。

按钮启动CameraCaptureDialog，但在ShowDialog（）上，它会抛出“未知错误”。

“CAMERA”按钮后面的代码是：

    private void btnCam_Click(object sender, EventArgs e)
{
    string strFileName = "";

    try
    {
        using (CameraCaptureDialog cam = new CameraCaptureDialog())
        {
            cam.Owner = this;
            cam.InitialDirectory = @"\My Documents";
            cam.DefaultFileName = @"test.jpg";
            cam.Mode = CameraCaptureMode.Still;
            cam.StillQuality = CameraCaptureStillQuality.High;
            cam.Title = "TESTING";

            DialogResult dlg;
            dlg = cam.ShowDialog();  //**** THIS IS WHERE IT THROWS ERROR ****

            if (dlg == DialogResult.OK)
            {
                strFileName = cam.FileName;
            }
        }  // end of using
    }
    catch(Exception ex)
    {
        MessageBox.Show("Error: " + ex.Message + 
          " Stack: " + ex.StackTrace);
    } 
}

完整堆栈跟踪：

     at Microsoft.WindowsMobile.Forms.CameraCaptureDialog.LaunchCameraCaptureDialog(IntPtr ptrStruct)
   at Microsoft.WindowsMobile.Forms.CameraCaptureDialog.ShowDialog()
   at CameraAndSymbolBarcodeTest.Form1.btnCam_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.ButtonBase.WnProc(WM wm, Int32 wParam, Int32 lParam)
   at System.Windows.Forms.Control._InternalWnProc(WM wm, Int32 wParam, Int32 lParam)
   at Microsoft.AGL.Forms.EVL.EnterMainLoop(IntPtr hwnMain)
   at System.Windows.Forms.Application.Run(Form fm)
   at CameraTest.Program.Main()

非常感谢任何帮助。

谢谢，

CameraCaptureDialog在ShowDialog上抛出错误

0 个答案: