[RMVX] 真·后台运行（2009/11/25 重要更新） - Project1

unless $_Start
$_Start = Win32API.new("Lib/BackgroundRunning","Start",'V','L')
$_Stop = Win32API.new("Lib/BackgroundRunning","Stop",'V','L')
$_OnFocus = Win32API.new("Lib/BackgroundRunning","OnFocus",'V','L')
$_Start.call
module Input
InputUpdate = method :update
InputTrigger = method :trigger?
InputPress = method :press?
InputRepeat = method :repeat?
InputDir4 = method :dir4
InputDir8 = method :dir8
def self.update
InputUpdate.call if $_OnFocus.call != 0
end
def self.trigger?(num)
return $_OnFocus.call != 0 ? InputTrigger.call(num) : false
end
def self.press?(num)
return $_OnFocus.call != 0 ? InputPress.call(num) : false
end
def self.repeat?(num)
return $_OnFocus.call != 0 ? InputRepeat.call(num) : false
end
def self.dir4
return $_OnFocus.call != 0 ? InputDir4.call : 0
end
def self.dir8
return $_OnFocus.call != 0 ? InputDir8.call : 0
end
end
end

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#include <windows.h>
#include <stdio.h>
HWND g_hWnd = NULL;
LONG g_pOldWndProc = NULL;
BOOL g_onFocus = TRUE;
bool g_started = FALSE;
LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch(uMsg)
{
case WM_ACTIVATEAPP:
g_onFocus = wParam;
return TRUE;
default:
return CallWindowProc((WNDPROC)g_pOldWndProc, hWnd, uMsg, wParam, lParam);
}
}
int Start()
{
if(!g_started)
{
// Retrieve the current thread identifier.
DWORD threadID = GetCurrentThreadId();
// Retrieve the handle to the front-most window.
g_hWnd = GetWindow(GetForegroundWindow(), GW_HWNDFIRST);
// Enumerate all the windows.
while(g_hWnd)
{
// If the current thread identifier matches the one being enumerated, then
if(threadID == GetWindowThreadProcessId(g_hWnd, NULL))
{
// Allocate a buffer of length 12.
char className[12];
// Get the class name of the window.
GetClassName(g_hWnd, className, 12);
// break the loop if the class name matches.
if(strcmp(className, "RGSS Player") == 0)
break;
}
// Retrieve the handle to the next window.
g_hWnd = GetWindow(g_hWnd, GW_HWNDNEXT);
}
// Failed when retrieving the handle to the window.
if(!g_hWnd)
return 1;
g_pOldWndProc = SetWindowLong(g_hWnd, GWL_WNDPROC, (LONG)WindowProc);
// Failed when replacing window proc.
if(!g_pOldWndProc)
return 2;
g_started = true;
}
return 0;
}
int Stop()
{
if(g_started)
{
// Failed when retrieving the handle to the window.
if(!g_hWnd)
return 1;
// Failed when reverting the window proc.
if(!SetWindowLong(g_hWnd, GWL_WNDPROC, (LONG)g_pOldWndProc))
return 2;
g_started = false;
}
return 0;
}
int OnFocus()
{
return g_onFocus;
}

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脚本 '真·后台运行' 的第 4 行发生了 RuntimeError .

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