MessageManager Class Reference

#include <MessageManager.h>

Public Member Functions
	MessageManager ()
	~MessageManager ()
void	AddMessage (UINT message, HWND window)
void	RemoveMessage (UINT message, HWND window)
void	ClearMessages ()
bool	HandlerExists (UINT message)
bool	SendMessage (UINT message, WPARAM wParam, LPARAM lParam, LRESULT *result)
void	PostMessage (UINT message, WPARAM wParam, LPARAM lParam)

Public Attributes
MsgMap	msgs

Constructor & Destructor Documentation

MessageManager()

MessageManager::MessageManager

(

)

{
}

~MessageManager()

MessageManager::~MessageManager

(

)

{
    ClearMessages();
}

Member Function Documentation

AddMessage()

void MessageManager::AddMessage	(	UINT	message,
		HWND	window )

{
    WindowSet *winSet;
    MsgMap::iterator iter = msgs.find(message);
 
    if (iter == msgs.end())
    {
        winSet = new WindowSet();
        msgs[message] = winSet;
    }
    else winSet = iter->second;
 
    winSet->insert(window);
}

RemoveMessage()

void MessageManager::RemoveMessage	(	UINT	message,
		HWND	window )

{
    MsgMap::iterator iter = msgs.find(message);
 
    if (iter == msgs.end()) return;
 
    iter->second->erase(window);
 
    if (iter->second->size() == 0)
    {
        delete iter->second;
        msgs.erase(iter);
    }
}

ClearMessages()

void MessageManager::ClearMessages

(

)

{
    MsgMap::iterator iter = msgs.begin();
 
    while (iter != msgs.end())
    {
        if (iter->second) delete iter->second;
        iter++;
    }
 
    msgs.clear();
}

HandlerExists()

bool MessageManager::HandlerExists

(

UINT

message

)

{
    if (msgs.find(message) != msgs.end()) return true;
 
    return false;
}

SendMessage()

bool MessageManager::SendMessage	(	UINT	message,
		WPARAM	wParam,
		LPARAM	lParam,
		LRESULT *	result )

{
    WindowSet *winSet;
    MsgMap::iterator iter1 = msgs.find(message);
 
    if (result) *result = 0;
 
    if (iter1 == msgs.end()) return false;
 
    winSet = iter1->second;
 
    WindowSet::iterator iter2 = winSet->begin();
 
    // Use the first one for the result...
    if (iter2 != winSet->end())
    {
        if (result)
        {
            *result = ::SendMessage((HWND)*iter2, message, wParam, lParam);
            iter2++;
        }
    }
 
    while (iter2 != winSet->end())
    {
        ::SendMessage((HWND)*iter2, message, wParam, lParam);
        iter2++;
    }
 
    return true;
}

PostMessage()

void MessageManager::PostMessage	(	UINT	message,
		WPARAM	wParam,
		LPARAM	lParam )

{
    WindowSet *winSet;
    MsgMap::iterator iter1;
 
    iter1 = msgs.find(message);
 
    if (iter1 == msgs.end()) return;
 
    winSet = iter1->second;
 
    WindowSet::iterator iter2 = winSet->begin();
 
    while (iter2 != winSet->end())
    {
        ::PostMessage((HWND)*iter2, message, wParam, lParam);
        iter2++;
    }
}

Member Data Documentation

msgs

MsgMap MessageManager::msgs