189 lines
4.2 KiB
C++
189 lines
4.2 KiB
C++
/*++
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Copyright (c) 2000 Microsoft Corporation
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Module Name:
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ForceApplicationFocus.cpp
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Abstract:
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This shim calls SetForegroundWindow after CreateWindowEx and ShowWindow
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calls to fix focus problems that applications tend to have when they
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create/destroy windows on startup and manage to lose the foreground focus.
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Notes:
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This is a general purpose shim.
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History:
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12/02/1999 markder Created
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--*/
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#include "precomp.h"
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IMPLEMENT_SHIM_BEGIN(ForceApplicationFocus)
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#include "ShimHookMacro.h"
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APIHOOK_ENUM_BEGIN
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APIHOOK_ENUM_ENTRY(ShowWindow)
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APIHOOK_ENUM_ENTRY(CreateWindowExA)
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APIHOOK_ENUM_ENTRY(CreateWindowExW)
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APIHOOK_ENUM_END
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/*++
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Calls SetForegroundWindow directly after a ShowWindow call with SW_SHOW as
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the operation. The mouse_event call allows the SetForegroundWindow call to
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succeed. This is a hack borrowed from the DirectX sources.
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--*/
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BOOL
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APIHOOK(ShowWindow)(
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HWND hWnd,
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INT nCmdShow
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)
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{
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BOOL bReturn;
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bReturn = ORIGINAL_API(ShowWindow)(hWnd, nCmdShow);
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if (nCmdShow == SW_SHOW)
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{
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if (hWnd != GetForegroundWindow()) {
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LOGN( eDbgLevelWarning,
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"ShowWindow called for non-foreground window. Forcing to foreground.");
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}
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mouse_event(MOUSEEVENTF_WHEEL, 0, 0, 0, 0);
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SetForegroundWindow(hWnd);
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}
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return bReturn;
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}
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/*++
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Calls SetForegroundWindow directly after a CreateWindowEx call with
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WS_VISIBLE as a style. The mouse_event call allows the
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SetForegroundWindow call to succeed. This is a hack borrowed from
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the DirectX sources.
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--*/
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HWND
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APIHOOK(CreateWindowExA)(
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DWORD dwExStyle,
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LPCSTR lpClassName,
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LPCSTR lpWindowName,
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DWORD dwStyle,
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int x,
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int y,
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int nWidth,
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int nHeight,
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HWND hWndParent,
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HMENU hMenu,
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HINSTANCE hInstance,
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LPVOID lpParam
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)
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{
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HWND hReturn;
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hReturn = ORIGINAL_API(CreateWindowExA)(
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dwExStyle,
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lpClassName,
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lpWindowName,
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dwStyle,
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x,
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y,
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nWidth,
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nHeight,
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hWndParent,
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hMenu,
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hInstance,
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lpParam);
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if (hReturn && (dwStyle & WS_VISIBLE))
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{
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if (hReturn != GetForegroundWindow()) {
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LOGN( eDbgLevelWarning,
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"CreateWindowExA: New window not foreground. Forcing to foreground.");
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}
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mouse_event(MOUSEEVENTF_WHEEL, 0, 0, 0, 0);
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SetForegroundWindow(hReturn);
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}
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return hReturn;
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}
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/*++
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Calls SetForegroundWindow directly after a CreateWindowEx call with
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WS_VISIBLE as a style. The mouse_event call allows the
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SetForegroundWindow call to succeed. This is a hack borrowed from
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the DirectX sources.
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--*/
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HWND
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APIHOOK(CreateWindowExW)(
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DWORD dwExStyle,
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LPCWSTR lpClassName,
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LPCWSTR lpWindowName,
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DWORD dwStyle,
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int x,
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int y,
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int nWidth,
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int nHeight,
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HWND hWndParent,
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HMENU hMenu,
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HINSTANCE hInstance,
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LPVOID lpParam
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)
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{
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HWND hReturn;
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hReturn = ORIGINAL_API(CreateWindowExW)(
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dwExStyle,
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lpClassName,
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lpWindowName,
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dwStyle,
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x,
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y,
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nWidth,
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nHeight,
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hWndParent,
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hMenu,
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hInstance,
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lpParam);
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if (hReturn && (dwStyle & WS_VISIBLE))
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{
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if (hReturn != GetForegroundWindow()) {
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LOGN( eDbgLevelWarning, "CreateWindowExW: New window not foreground. Forcing to foreground.");
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}
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mouse_event(MOUSEEVENTF_WHEEL, 0, 0, 0, 0);
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SetForegroundWindow(hReturn);
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}
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return hReturn;
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}
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/*++
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Register hooked functions
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--*/
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HOOK_BEGIN
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APIHOOK_ENTRY(USER32.DLL, ShowWindow)
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APIHOOK_ENTRY(USER32.DLL, CreateWindowExA)
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APIHOOK_ENTRY(USER32.DLL, CreateWindowExW)
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HOOK_END
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IMPLEMENT_SHIM_END
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