Re: GetKeyboardState problems in Age of Empires II

[Stevie Trujillo]

I tried to make a test case now. It's tested on wine-1.5.27 since I 
don't have enough battery to compile new wine.

$ winegcc test.c -o test

Issue1, the 0x40 bit:
$ ./test.exe
00 00 00 00
00 00 00 00
*press LEFT arrow*
81 00 00 00
*release LEFT arrow*
01 00 00 00
*ALTTAB*
41 00 00 00

Issue2, LEFT ARROW remains pressed if released in another window.
$ ./test.exe
00 00 00 00
*press LEFT ARROW*
81 00 00 00
*ALTTAB*
c1 00 00 00
*RELEASE LEFT ARROW (outside Wine application)*
c1 00 00 00
*ALTTAB BACK*
c1 00 00 00
*press LEFT ARROW again (inside Wine application)*
41 00 00 00

test.c (also at http://pastie.org/7642788 if my mail client breaks it):
// based on http://www.winprog.org/tutorial/simple_window.html
#include <windows.h>
#include <stdio.h>

static const char g_szClassName[] = "myWindowClass";

static void print_keyboard_state()
{
BYTE keystate[256];
GetKeyboardState(keystate);
printf("%02x %02x %02x %02x\n", keystate[VK_LEFT], keystate[VK_UP], 
keystate[VK_RIGHT], keystate[VK_DOWN]);
}

// Step 4: the Window Procedure
static LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wParam, 
LPARAM lParam)
{
switch(msg)
{
    case WM_TIMER:
    	print_keyboard_state();
    break;
    case WM_CLOSE:
    	DestroyWindow(hwnd);
    break;
    case WM_DESTROY:
    	PostQuitMessage(0);
    break;
    default:
    	return DefWindowProc(hwnd, msg, wParam, lParam);
}
return 0;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
     LPSTR lpCmdLine, int nCmdShow)
{
WNDCLASSEX wc;
HWND hwnd;
MSG Msg;

//Step 1: Registering the Window Class
wc.cbSize        = sizeof(WNDCLASSEX);
wc.style         = 0;
wc.lpfnWndProc   = WndProc;
wc.cbClsExtra    = 0;
wc.cbWndExtra    = 0;
wc.hInstance     = hInstance;
wc.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wc.lpszMenuName  = NULL;
wc.lpszClassName = g_szClassName;
wc.hIconSm       = LoadIcon(NULL, IDI_APPLICATION);

if(!RegisterClassEx(&wc))
    return 1;

// Step 2: Creating the Window
hwnd = CreateWindowEx(
     WS_EX_CLIENTEDGE,
     g_szClassName,
     "The title of my window",
     WS_OVERLAPPEDWINDOW,
     CW_USEDEFAULT, CW_USEDEFAULT, 240, 120,
     NULL, NULL, hInstance, NULL);

if(hwnd == NULL)
    return 1;

ShowWindow(hwnd, nCmdShow);
UpdateWindow(hwnd);

UINT id;
SetTimer(hwnd, 0, 1000, NULL);

// Step 3: The Message Loop
while(GetMessage(&Msg, NULL, 0, 0) > 0)
{
    TranslateMessage(&Msg);
    DispatchMessage(&Msg);
}
return Msg.wParam;
}