Page 184 - DCAP408_WEB_PROGRAMMING

Windows Programming

Notes {
return RemoveMenu(mnuHandle, mnuPosition, MF_REMOVE);
}
/// <summary>
/// Appends a menu item to the end of the system menu list
/// </summary>
/// <param name=”mnuHandle”>Handle to the system menu to
append to</param>
/// <param name=”MenuID”>A unique ID sent by the calling
function to track events for the menu</param>
/// <param name=”mnuText”>The display text of the menu</
param>
/// <returns>Returns nonzero on success, 0 on fail.</returns>
public long AppendSysMenu(int mnuHandle, int MenuID,
string mnuText)
{
return AppendMenu(mnuHandle, 0, MenuID, mnuText);
}
/// <summary>
/// Appends a separator bar at the end of the system menu
/// </summary>
/// <param name=”mnuHandle”>Handle to the system menu</param>
/// <returns>Returns nonzero on success, 0 on fail</returns>
public long AppendSeparator(int mnuHandle)
{
return AppendMenu(mnuHandle, MF_SEPARATOR, 0, null);
}
// THIS IS IMPORTANT. The WndProc function has to be
overridden so
// we can capture the events from a menu item being selected.
// In the future, we could add OwnerDraw features here,
and process
// that here, too
/// <param name=”messg”>The messages sent to WndProc</param>
protected override void WndProc(ref Message messg)
{
int i = 1; // for EXAMPLE purposes only
// see if this is a menu message to monitor
if (messg.Msg == WM_SYSCOMMAND)
{
// decide how to handle the command
switch (messg.WParam.ToInt32())
{

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