cecamera.cs

wince 的摄像头操作程序

                // 没有足够的存储空间存储相片或者视频的异常.
                MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK,
                    MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
            }
            catch (InvalidOperationException ex)
            {
                // 未知错误
                MessageBox.Show(ex.Message, this.Text, MessageBoxButtons.OK,
                    MessageBoxIcon.Hand, MessageBoxDefaultButton.Button1);
            }
        }

        
        private void menuModeStill_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuMode.MenuItems.Count; i++)
            {
                this.menuMode.MenuItems[i].Checked = false;
            }
            this.menuModeStill.Checked = true;

            validateFileNameInput();

            this.checkResolution.Enabled = true;
            this.checkVideoTimeLimit.Checked = false;
            this.checkVideoTimeLimit.Enabled = false;
        }

        
        private void menuModeVideoOnly_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuMode.MenuItems.Count; i++)
            {
                this.menuMode.MenuItems[i].Checked = false;
            }
            this.menuModeVideoOnly.Checked = true;

            validateFileNameInput();

            this.checkResolution.Checked = false;
            this.checkResolution.Enabled = false;
            this.checkVideoTimeLimit.Enabled = true;
        }

        
        private void menuModeVideoWithAudio_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuMode.MenuItems.Count; i++)
            {
                this.menuMode.MenuItems[i].Checked = false;
            }
            this.menuModeVideoWithAudio.Checked = true;

            validateFileNameInput();

            this.checkResolution.Checked = false;
            this.checkResolution.Enabled = false;
            this.checkVideoTimeLimit.Enabled = true;            
        }

        /// <summary>
        /// Verifies the filename to be consistent with the camera mode.
        /// </summary>
        private void validateFileNameInput()
        {
            if (this.menuModeStill.Checked)
            {
                if (textDefaultFileName.Text == null || textDefaultFileName.Text.Length == 0 ||
                    textDefaultFileName.Text.Equals(cecameraDefaultVideoFileName))
                {
                    this.textDefaultFileName.Text = cecameraDefaultPictureFileName;
                }
            }
            else
            {
                if (textDefaultFileName.Text == null || textDefaultFileName.Text.Length == 0 ||
                    textDefaultFileName.Text.Equals(cecameraDefaultPictureFileName))
                {
                    textDefaultFileName.Text = cecameraDefaultVideoFileName;
                }
            }
        }
        
        /// <summary>
        /// Checks the selected menu item of "Still Quality".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuStillQualityDefault_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuStillQuality.MenuItems.Count; i++)
            {
                this.menuStillQuality.MenuItems[i].Checked = false;
            }
            this.menuStillQualityDefault.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Still Quality".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuStillQualityLow_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuStillQuality.MenuItems.Count; i++)
            {
                this.menuStillQuality.MenuItems[i].Checked = false;
            }
            this.menuStillQualityLow.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Still Quality".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuStillQualityNormal_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuStillQuality.MenuItems.Count; i++)
            {
                this.menuStillQuality.MenuItems[i].Checked = false;
            }
            this.menuStillQualityNormal.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Still Quality".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuStillQualityHigh_Click(object sender, System.EventArgs e)
        {
            for (int i = 0; i < this.menuStillQuality.MenuItems.Count; i++)
            {
                this.menuStillQuality.MenuItems[i].Checked = false;
            }
            this.menuStillQualityHigh.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Video Types".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuVideoTypesAll_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < this.menuVideoTypes.MenuItems.Count; i++)
            {
                this.menuVideoTypes.MenuItems[i].Checked = false;
            }
            this.menuVideoTypesAll.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Video Types".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuVideoTypesStandard_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < this.menuVideoTypes.MenuItems.Count; i++)
            {
                this.menuVideoTypes.MenuItems[i].Checked = false;
            }
            this.menuVideoTypesStandard.Checked = true;
        }

        /// <summary>
        /// Checks the selected menu item of "Video Types".
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuVideoTypesMessaging_Click(object sender, EventArgs e)
        {
            for (int i = 0; i < this.menuVideoTypes.MenuItems.Count; i++)
            {
                this.menuVideoTypes.MenuItems[i].Checked = false;
            }
            this.menuVideoTypesMessaging.Checked = true;
        }

        /// <summary>
        /// Resets all settings as the default value and updates UI.
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuReset_Click(object sender, System.EventArgs e)
        {
            this.ResetOptions();
        }

        /// <summary>
        /// Display a message box for program information.
        /// </summary>
        /// <param name="sender">sender</param>
        /// <param name="e">Event arguments</param>
        private void menuAbout_Click(object sender, System.EventArgs e)
        {
            MessageBox.Show("Windows Mobile照相机捕获示例，汉化&注释：Eric.", this.Text);
        }

        
        private void menuExit_Click(object sender, System.EventArgs e)
        {
            this.Close();
        }

        /// <summary>
        /// 重新设置所有的设置为默认设置.
        /// </summary>
        private void ResetOptions()
        {
            // CheckBoxs 置为非选择状态
            this.checkInitialDirectory.Checked = false;
            this.checkDefaultFileName.Checked = false;
            this.checkTitle.Checked = false;
            this.checkResolution.Checked = false;            
            this.checkVideoTimeLimit.Checked = false;
            this.checkVideoTimeLimit.Enabled = false;

            // 默认设置
            this.textInitialDirectory.Text = cecameraDefaultInitialDirectory;
            this.textDefaultFileName.Text = cecameraDefaultPictureFileName;
            this.textTitle.Text = cecameraDefaultTitle;
            this.textResolutionWidth.Text = cecameraDefaultResolutionWidth;
            this.textResolutionHeight.Text = cecameraDefaultResolutionHeight;
            this.textVideoTimeLimit.Text = cecameraDefaultVideoTimeLimit;

            // textbox设置为不可选状态
            this.textInitialDirectory.Enabled = false;
            this.textDefaultFileName.Enabled = false;
            this.textTitle.Enabled = false;
            this.textResolutionWidth.Enabled = false;
            this.textResolutionHeight.Enabled = false;
            this.textVideoTimeLimit.Enabled = false;

            // Checks the menu item of "Mode" as default item
            for (int i = 0; i < this.menuMode.MenuItems.Count; i++)
            {
                this.menuMode.MenuItems[i].Checked = false;
            }
            this.menuModeStill.Checked = true;

            // Checks the menu item of "Still Quality" as default item
            for (int i = 0; i < this.menuStillQuality.MenuItems.Count; i++)
            {
                this.menuStillQuality.MenuItems[i].Checked = false;
            }
            this.menuStillQualityDefault.Checked = true;

            // Checks the menu item of "Video Types" as default item
            for (int i = 0; i < this.menuVideoTypes.MenuItems.Count; i++)
            {
                this.menuVideoTypes.MenuItems[i].Checked = false;
            }
            this.menuVideoTypesAll.Checked = true;
        }

        /// <summary>
        /// string转换成integer.
        /// </summary>
        /// <param name="value">字符串变量</param>
        /// <param name="result">整形地址变量</param>
        /// <returns>true if converts successfully; otherwise, false.</returns>
        private static bool ConvertStringToInt(string value, ref int result)
        {
            try
            {
                result = Convert.ToInt32(value, NumberFormatInfo.CurrentInfo);
            }
            catch (FormatException)
            {
                return false;
            }
            catch (OverflowException)
            {
                return false;
            }

            return true;
        }
    }
}