using System; using System.Drawing; using System.Windows.Forms;public class frmTextModMenu: System.Windows.Forms.Form { const int pointSize = 18; private MenuItem miFaceName;#region " Windows Form Designer generated code " public frmTextModMenu() { //This call is required by the Windows Form Designer. InitializeComponent(); //Add any initialization after the InitializeComponent() call } //Form overrides dispose to clean up the component list. protected override void Dispose(bool disposing) { if (disposing) { if (components != null) { components.Dispose(); } } base.Dispose(disposing); } //Required by the Windows Form Designer private System.ComponentModel.IContainer components = null; //NOTE: The following procedure is required by the Windows Form Designer //It can be modified using the Windows Form Designer. //Do ! modify it using the code editor. private System.Windows.Forms.MainMenu mnuMain; private void InitializeComponent() { System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmTextModMenu)); this.mnuMain = new System.Windows.Forms.MainMenu(); // //mnuMain // this.mnuMain.RightToLeft = (System.Windows.Forms.RightToLeft) resources.GetObject("mnuMain.RightToLeft"); // //frmTextModMenu // this.AccessibleDescription = (string) resources.GetObject("$this.AccessibleDescription"); this.AccessibleName = (string) resources.GetObject("$this.AccessibleName"); this.Anchor = (System.Windows.Forms.AnchorStyles) resources.GetObject("$this.Anchor"); this.AutoScaleBaseSize = (System.Drawing.Size) resources.GetObject("$this.AutoScaleBaseSize"); this.AutoScroll = (bool) resources.GetObject("$this.AutoScroll"); this.AutoScrollMargin = (System.Drawing.Size) resources.GetObject("$this.AutoScrollMargin"); this.AutoScrollMinSize = (System.Drawing.Size) resources.GetObject("$this.AutoScrollMinSize"); this.BackgroundImage = (System.Drawing.Image) resources.GetObject("$this.BackgroundImage"); this.ClientSize = (System.Drawing.Size) resources.GetObject("$this.ClientSize"); this.Dock = (System.Windows.Forms.DockStyle) resources.GetObject("$this.Dock"); this.Enabled = (bool) resources.GetObject("$this.Enabled"); this.Font = (System.Drawing.Font) resources.GetObject("$this.Font"); this.Icon = (System.Drawing.Icon) resources.GetObject("$this.Icon"); this.ImeMode = (System.Windows.Forms.ImeMode) resources.GetObject("$this.ImeMode"); this.Location = (System.Drawing.Point) resources.GetObject("$this.Location"); this.MaximumSize = (System.Drawing.Size) resources.GetObject("$this.MaximumSize"); this.Menu = this.mnuMain; this.MinimumSize = (System.Drawing.Size) resources.GetObject("$this.MinimumSize"); this.Name = "frmTextModMenu"; this.RightToLeft = (System.Windows.Forms.RightToLeft) resources.GetObject("$this.RightToLeft"); this.StartPosition = (System.Windows.Forms.FormStartPosition) resources.GetObject("$this.StartPosition"); this.Text = resources.GetString("$this.Text"); this.Visible = (bool) resources.GetObject("$this.Visible"); this.Load +=new EventHandler(frmTextModMenu_Load); }#endregion // This example draws a simple menu that contains three text items. // The menu item is drawn at a size that is appropriate for the menu items // See the frmIconModMenu for a form that includes a menu with the option // for a custom color background well the use of icons. private void frmTextModMenu_Load(object sender, System.EventArgs e) { // Create the main menu item and add the subitems to the menu. mnuMain.MenuItems.Add("&Choose a Font"); string[] menuItemsText = new string[]{"&TimesnewRoman", "&Courier new", "&MS Sans Serif"}; MenuItem[] menuItems = new MenuItem[menuItemsText.Length]; int menuItemCount = (int)(menuItems.Length); EventHandler evOnClick = new EventHandler(MenuFaceNameOnClick); MeasureItemEventHandler evOnMeasure = new MeasureItemEventHandler(MenuFaceNameOnMeasureItem); DrawItemEventHandler evDrawItem = new DrawItemEventHandler(MenuFaceNameOnDrawItem); for (int i=0;i<menuItemCount;i++) { menuItems[i] = new MenuItem(menuItemsText[i]); // Enables the firing of the OnMeasureItem and OnDrawnItem events. menuItems[i].OwnerDraw = true; // Add event handlers to each menu item for key events. menuItems[i].Click += new EventHandler(evOnClick); menuItems[i].MeasureItem += new MeasureItemEventHandler(evOnMeasure); menuItems[i].DrawItem += new DrawItemEventHandler(evDrawItem); } mnuMain.MenuItems[0].MenuItems.AddRange(menuItems); } private void MenuFaceNameOnClick(object sender, EventArgs e) { // Simply lets the user know which menu item was clicked. miFaceName = (MenuItem) sender; miFaceName.Checked = true; MessageBox.Show("Menu Clicked: " + miFaceName.Text.Substring(1)); } private void MenuFaceNameOnMeasureItem(object sender, MeasureItemEventArgs miea) { // The MeasureItem event along with the OnDrawItem event are the two key events // that need to be handled in order to create owner drawn menus. MenuItem mi = (MenuItem) sender; Font f = new Font(mi.Text.Substring(1), pointSize); // Measure the string that makes up a given menu item and use it to set the // size of the menu item being drawn. SizeF siF = miea.Graphics.MeasureString(mi.Text, f); miea.ItemWidth = (int)(Math.Ceiling(siF.Width)); miea.ItemHeight = (int)(Math.Ceiling(siF.Height)); } private void MenuFaceNameOnDrawItem(object sender, DrawItemEventArgs diea) { // After you have established the size of the menu with the OnMeasureItem event you can // then go ahead and drawn the item. // A graphics object is passed to the OnDrawItem event that you can use to // draw the menu item. MenuItem mi = (MenuItem) sender; Graphics grfx = diea.Graphics; Brush br; Font f = new Font(mi.Text.Substring(1), pointSize); // Shows the accelerator key StringFormat strFrmt = new StringFormat(); strFrmt.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show; Rectangle rectCheck = diea.Bounds; Double d = SystemInformation.MenuCheckSize.Width * rectCheck.Height / SystemInformation.MenuCheckSize.Width; rectCheck.Width = (int)(d); Rectangle recText = diea.Bounds; // Leave enough room for a check recText.X += rectCheck.Width; diea.DrawBackground(); // Highlight the menu item the user moves over it. if ((diea.State & DrawItemState.Selected) != 0) { br = SystemBrushes.HighlightText; } else { br = SystemBrushes.FromSystemColor(SystemColors.MenuText); } // Draws the string leaving room for the accelerator key grfx.DrawString(mi.Text, f, br, recText.Left, recText.Top, strFrmt); }}
关键： DrawItemEventHandler evDrawItem = new DrawItemEventHandler(MenuFaceNameOnDrawItem); menuItems[i].DrawItem += new DrawItemEventHandler(evDrawItem); private void MenuFaceNameOnDrawItem(object sender, DrawItemEventArgs diea) { // After you have established the size of the menu with the OnMeasureItem event you can // then go ahead and drawn the item. // A graphics object is passed to the OnDrawItem event that you can use to // draw the menu item. MenuItem mi = (MenuItem) sender; Graphics grfx = diea.Graphics; Brush br; Font f = new Font(mi.Text.Substring(1), pointSize); // Shows the accelerator key StringFormat strFrmt = new StringFormat(); strFrmt.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show; Rectangle rectCheck = diea.Bounds; Double d = SystemInformation.MenuCheckSize.Width * rectCheck.Height / SystemInformation.MenuCheckSize.Width; rectCheck.Width = (int)(d); Rectangle recText = diea.Bounds; // Leave enough room for a check recText.X += rectCheck.Width; diea.DrawBackground(); // Highlight the menu item the user moves over it. if ((diea.State & DrawItemState.Selected) != 0) { br = SystemBrushes.HighlightText; } else { br = SystemBrushes.FromSystemColor(SystemColors.MenuText); } // Draws the string leaving room for the accelerator key grfx.DrawString(mi.Text, f, br, recText.Left, recText.Top, strFrmt); }
using System.Drawing;
using System.Windows.Forms;public class frmTextModMenu: System.Windows.Forms.Form { const int pointSize = 18;
private MenuItem miFaceName;#region " Windows Form Designer generated code " public frmTextModMenu() { //This call is required by the Windows Form Designer.
InitializeComponent();
//Add any initialization after the InitializeComponent() call
} //Form overrides dispose to clean up the component list. protected override void Dispose(bool disposing) { if (disposing) { if (components != null) { components.Dispose(); } } base.Dispose(disposing); } //Required by the Windows Form Designer private System.ComponentModel.IContainer components = null; //NOTE: The following procedure is required by the Windows Form Designer //It can be modified using the Windows Form Designer. //Do ! modify it using the code editor. private System.Windows.Forms.MainMenu mnuMain; private void InitializeComponent() { System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(frmTextModMenu));
this.mnuMain = new System.Windows.Forms.MainMenu(); // //mnuMain // this.mnuMain.RightToLeft = (System.Windows.Forms.RightToLeft) resources.GetObject("mnuMain.RightToLeft"); // //frmTextModMenu // this.AccessibleDescription = (string) resources.GetObject("$this.AccessibleDescription"); this.AccessibleName = (string) resources.GetObject("$this.AccessibleName"); this.Anchor = (System.Windows.Forms.AnchorStyles) resources.GetObject("$this.Anchor"); this.AutoScaleBaseSize = (System.Drawing.Size) resources.GetObject("$this.AutoScaleBaseSize"); this.AutoScroll = (bool) resources.GetObject("$this.AutoScroll"); this.AutoScrollMargin = (System.Drawing.Size) resources.GetObject("$this.AutoScrollMargin"); this.AutoScrollMinSize = (System.Drawing.Size) resources.GetObject("$this.AutoScrollMinSize"); this.BackgroundImage = (System.Drawing.Image) resources.GetObject("$this.BackgroundImage"); this.ClientSize = (System.Drawing.Size) resources.GetObject("$this.ClientSize"); this.Dock = (System.Windows.Forms.DockStyle) resources.GetObject("$this.Dock"); this.Enabled = (bool) resources.GetObject("$this.Enabled"); this.Font = (System.Drawing.Font) resources.GetObject("$this.Font"); this.Icon = (System.Drawing.Icon) resources.GetObject("$this.Icon"); this.ImeMode = (System.Windows.Forms.ImeMode) resources.GetObject("$this.ImeMode"); this.Location = (System.Drawing.Point) resources.GetObject("$this.Location"); this.MaximumSize = (System.Drawing.Size) resources.GetObject("$this.MaximumSize"); this.Menu = this.mnuMain; this.MinimumSize = (System.Drawing.Size) resources.GetObject("$this.MinimumSize"); this.Name = "frmTextModMenu"; this.RightToLeft = (System.Windows.Forms.RightToLeft) resources.GetObject("$this.RightToLeft"); this.StartPosition = (System.Windows.Forms.FormStartPosition) resources.GetObject("$this.StartPosition"); this.Text = resources.GetString("$this.Text"); this.Visible = (bool) resources.GetObject("$this.Visible");
this.Load +=new EventHandler(frmTextModMenu_Load);
}#endregion // This example draws a simple menu that contains three text items. // The menu item is drawn at a size that is appropriate for the menu items // See the frmIconModMenu for a form that includes a menu with the option // for a custom color background well the use of icons. private void frmTextModMenu_Load(object sender, System.EventArgs e)
{
// Create the main menu item and add the subitems to the menu. mnuMain.MenuItems.Add("&Choose a Font");
string[] menuItemsText = new string[]{"&TimesnewRoman", "&Courier new", "&MS Sans Serif"};
MenuItem[] menuItems = new MenuItem[menuItemsText.Length];
int menuItemCount = (int)(menuItems.Length);
EventHandler evOnClick = new EventHandler(MenuFaceNameOnClick);
MeasureItemEventHandler evOnMeasure = new MeasureItemEventHandler(MenuFaceNameOnMeasureItem);
DrawItemEventHandler evDrawItem = new DrawItemEventHandler(MenuFaceNameOnDrawItem); for (int i=0;i<menuItemCount;i++)
{ menuItems[i] = new MenuItem(menuItemsText[i]); // Enables the firing of the OnMeasureItem and OnDrawnItem events.
menuItems[i].OwnerDraw = true;
// Add event handlers to each menu item for key events. menuItems[i].Click += new EventHandler(evOnClick);
menuItems[i].MeasureItem += new MeasureItemEventHandler(evOnMeasure);
menuItems[i].DrawItem += new DrawItemEventHandler(evDrawItem);
}
mnuMain.MenuItems[0].MenuItems.AddRange(menuItems);
} private void MenuFaceNameOnClick(object sender, EventArgs e) { // Simply lets the user know which menu item was clicked. miFaceName = (MenuItem) sender; miFaceName.Checked = true; MessageBox.Show("Menu Clicked: " + miFaceName.Text.Substring(1)); } private void MenuFaceNameOnMeasureItem(object sender, MeasureItemEventArgs miea)
{
// The MeasureItem event along with the OnDrawItem event are the two key events
// that need to be handled in order to create owner drawn menus. MenuItem mi = (MenuItem) sender;
Font f = new Font(mi.Text.Substring(1), pointSize); // Measure the string that makes up a given menu item and use it to set the
// size of the menu item being drawn. SizeF siF = miea.Graphics.MeasureString(mi.Text, f);
miea.ItemWidth = (int)(Math.Ceiling(siF.Width));
miea.ItemHeight = (int)(Math.Ceiling(siF.Height)); } private void MenuFaceNameOnDrawItem(object sender, DrawItemEventArgs diea)
{ // After you have established the size of the menu with the OnMeasureItem event you can
// then go ahead and drawn the item.
// A graphics object is passed to the OnDrawItem event that you can use to
// draw the menu item. MenuItem mi = (MenuItem) sender;
Graphics grfx = diea.Graphics;
Brush br;
Font f = new Font(mi.Text.Substring(1), pointSize); // Shows the accelerator key StringFormat strFrmt = new StringFormat();
strFrmt.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show;
Rectangle rectCheck = diea.Bounds;
Double d = SystemInformation.MenuCheckSize.Width * rectCheck.Height / SystemInformation.MenuCheckSize.Width;
rectCheck.Width = (int)(d);
Rectangle recText = diea.Bounds; // Leave enough room for a check
recText.X += rectCheck.Width;
diea.DrawBackground(); // Highlight the menu item the user moves over it. if ((diea.State & DrawItemState.Selected) != 0)
{ br = SystemBrushes.HighlightText;
}
else
{ br = SystemBrushes.FromSystemColor(SystemColors.MenuText); } // Draws the string leaving room for the accelerator key grfx.DrawString(mi.Text, f, br, recText.Left, recText.Top, strFrmt); }}
DrawItemEventHandler evDrawItem = new DrawItemEventHandler(MenuFaceNameOnDrawItem);
menuItems[i].DrawItem += new DrawItemEventHandler(evDrawItem); private void MenuFaceNameOnDrawItem(object sender, DrawItemEventArgs diea)
{ // After you have established the size of the menu with the OnMeasureItem event you can
// then go ahead and drawn the item.
// A graphics object is passed to the OnDrawItem event that you can use to
// draw the menu item. MenuItem mi = (MenuItem) sender;
Graphics grfx = diea.Graphics;
Brush br;
Font f = new Font(mi.Text.Substring(1), pointSize); // Shows the accelerator key StringFormat strFrmt = new StringFormat();
strFrmt.HotkeyPrefix = System.Drawing.Text.HotkeyPrefix.Show;
Rectangle rectCheck = diea.Bounds;
Double d = SystemInformation.MenuCheckSize.Width * rectCheck.Height / SystemInformation.MenuCheckSize.Width;
rectCheck.Width = (int)(d);
Rectangle recText = diea.Bounds; // Leave enough room for a check
recText.X += rectCheck.Width;
diea.DrawBackground(); // Highlight the menu item the user moves over it. if ((diea.State & DrawItemState.Selected) != 0)
{ br = SystemBrushes.HighlightText;
}
else
{ br = SystemBrushes.FromSystemColor(SystemColors.MenuText); } // Draws the string leaving room for the accelerator key grfx.DrawString(mi.Text, f, br, recText.Left, recText.Top, strFrmt); }